Marshall County, OK: No Building Permit, No Zoning

Q: What to check before you buy land in Marshall County

Marshall County farmland averages about $2,584 an acre, while a typical home is valued around $214,960. Annual precipitation is roughly 40.8 inches, but severe drought has occurred in about 22% of years, so investigate well yield and water plans rather than relying on rainfall averages. All county land is at a 15% slope or less, and about 41.1% is wooded. Population density is about 43 people per square mile, and the nearest city of 100,000 or more is roughly 55 miles from the county center. The effective property-tax rate is about 0.6%, with a median annual bill near $824. Before closing, verify boundaries and town limits, check flood risk with the county floodplain administrator, and confirm septic feasibility with DEQ because conventional drain fields face severe soil limitations across much of the county.

Unincorporated Marshall County, Oklahoma does not require a county building permit for a home, and a single-family home, duplex, barn or shed there needs no State Fire Marshal permit¹². Madill has its own building code and zoning regulations, but the county has no zoning on unincorporated land³⁴⁵⁶. Septic permits for every address, city or not, come from the Oklahoma Department of Environmental Quality⁷.

At a glance

Building permit: Not required for a home in unincorporated Marshall County¹⁸
County zoning: No zoning in unincorporated areas; Madill has city zoning⁹⁶⁴
Septic permits: Issued by the Oklahoma DEQ (ECLS), not the county¹⁰⁷
RV living: No county zoning rule restricts it⁶
Tiny home living: No county zoning rule restricts it⁶
Minimum home size: None set by the county⁶
Domestic well permit: Not needed for household use, qualifying livestock, or irrigation under 3 acres¹¹
Owner-builder: Specified structures avoid a State Fire Marshal permit; this is not a blanket owner-builder waiver²

Who to call

Roads & driveways

Marshall County Office of the Commissioners

General county business, right-of-way and utility bore permits on county roads for unincorporated Marshall County

580.795.3165

commissioners@marshallcountyok.com

100 Plaza, Room 106, Madill, OK 73446

Floodplain permits

Marshall County Emergency Management (Floodplains & Emergency Management Administrator)

Floodplain administration and emergency management for Marshall County

580.672.5115

emergencymanagement@marshallcountyok.com

102 N 4th St, Madill, OK 73446

Septic permits

Oklahoma DEQ Environmental Complaints & Local Services (ECLS) Division

On-site sewage (septic) permitting, soil tests and installer oversight statewide, including Marshall County

405-702-6100

707 N Robinson, Oklahoma City, OK, 73102

Online permits →

Building permits

Oklahoma State Fire Marshal (OKSFM) — Plan Reviews

Plan review and permitting for construction not exempt from the State Fire Marshal permit (a single-family home, duplex, barn, shed or attached carport in an unincorporated county is exempt)

Online permits →

Also useful

Marshall County Assessor's Office — Addressing

911 addressing for new construction in Marshall County

580-795-2398

addressing@marshallcountyok.com

100 Plaza, Room 105, Madill, Oklahoma 73446

Contact details are copied from each office’s official page and were checked against it on October 14, 2026.

Off-grid gear

Going off-grid in Marshall County means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Marshall County, Oklahoma?

No, not for a house in unincorporated Marshall County. The county lists no building or permitting department¹, and Oklahoma law does not require a State Fire Marshal permit for a single-family home, duplex, barn, shed or attached carport there². Oklahoma’s statewide codes are minimums for residential and commercial construction, and the Uniform Building Code Commission adopted the 2024 International Building Code and 2024 International Residential Code effective September 14, 2026¹². In unincorporated areas, the Construction Industries Board enforces the electrical, mechanical, plumbing and fuel-gas minimums, and the State Fire Marshal enforces the commercial building code¹². Individual local jurisdictions decide which code levels they adopt¹³. We could not confirm that Marshall County has adopted or administers its own building code, so ask the Marshall County Commissioners before construction¹⁴. Inside Madill, the city has adopted its own building code, so the rural building-permit answer does not apply there³. Septic permits stay with the state either way⁷.

Who handles building permits and inspections for other projects in Marshall County, Oklahoma?

For construction that is not covered by the residential-and-farm-structure exemption, the Oklahoma State Fire Marshal's Office (OKSFM) accepts plans only through its Accela Citizen Portal, not by email or on paper¹⁵. OKSFM-permitted projects require inspections, with at least 7 days' notice before an inspection¹⁶. A Certificate of Occupancy follows a passing final inspection and submission of the Certificate of Completion form¹⁷. The Marshall County Commissioners separately administer utility-installation permits in county rights-of-way: each road crossing needs its own permit, and the signed application and advance payment must reach the commissioners by noon Thursday for Monday review¹⁸. Published utility right-of-way fees range from $25 for normal utility, cable or water-department operations to $2,000 per bore for volatile or combustible materials¹⁹.

Does Marshall County, Oklahoma have zoning?

Unincorporated Marshall County has no county zoning ordinance⁹⁶. No county zoning rule therefore sets minimum dwelling size, setbacks, lot coverage or building height there⁶. Madill is different: city zoning regulations (Chapter 12-2 of its code) apply within its corporate limits⁵, and newly annexed land enters the A-General Agricultural District until it is reclassified⁴. Rules in Kingston or another incorporated town may also differ, so confirm the parcel's jurisdiction before relying on the rural answer. Oklahoma exempts usual farm buildings used for agricultural purposes from county zoning authority²⁰. For a new residential development outside a municipality, the plat must describe water and sewage service and receive DEQ approval before recordation, lot sales or construction²¹. Outside a city or town, the county clerk cannot file a plat containing any lot under 2.5 acres unless it bears DEQ's approval stamp, so splitting land into small lots triggers DEQ review²². A plat with public roads in an unincorporated area must go before the board of county commissioners before it is filed with the county clerk²³.

How do septic permits work in Marshall County, Oklahoma?

Septic permitting in Marshall County runs through the Oklahoma Department of Environmental Quality, not a county health department or a city such as Madill⁷. An off-grid home still needs a DEQ Authorization to Construct before a new on-site system is installed or an existing one is modified, and DEQ must review the sewage report first²⁴. Alternative systems need advance approval, and every new or modified system must be inspected and approved before use²⁴. Only about 27% of Marshall County soils lack severe limits for a conventional drain field, so arrange the site evaluation early and budget for a possible alternative design²⁵. A residential development outside a municipality must obtain DEQ approval of its water-and-sewage plat before recordation, lot sales or construction²¹. Well permits are separate: Oklahoma requires no water permit for domestic use of groundwater, while a non-domestic well needs Oklahoma Water Resources Board approval before drilling¹¹²⁶.

Can you live in an RV or tiny home on your land in Marshall County?

Marshall County's lack of a zoning ordinance means there is no county zoning rule restricting RV or tiny-home occupancy on unincorporated land⁶. That rural answer does not apply inside Madill, where city zoning regulations govern land within the corporate limits⁴. The zoning answer also does not override septic, water, addressing or statewide installation standards. A manufactured home is treated differently once occupied: Oklahoma rules deem it a permanent installation and require HUD's federal installation standards or an approved manufacturer or engineer plan²⁷. Oklahoma's State Fire Marshal permit exemption covers specified structures in unincorporated areas regardless of who builds them, but it is not a blanket owner-builder exemption from every permit, inspection or certificate-of-occupancy requirement². We could not confirm a separate Marshall County owner-builder exemption; ask the Marshall County Commissioners before relying on one¹⁴.

Building a home in Marshall County: the steps, in order

Confirm that the parcel is outside town limits and that the project qualifies for the State Fire Marshal exemption⁸.
Get a 911 address from the Marshall County Assessor's addressing service²⁸.
Have the site evaluated, submit the sewage report and obtain DEQ's Authorization to Construct before septic work begins²⁹.
For a nonexempt project, submit plans through the OKSFM Accela Citizen Portal¹⁵.
Obtain OWRB authorization before drilling a non-domestic well or a well serving irrigation of more than 3 acres²⁶.
Obtain an ODOT Driveway Agreement before working in a state or federal highway right-of-way³⁰. For utility work in a county road right-of-way, file a separate county permit for each crossing and pay in advance¹⁸.
Contact the county floodplain administrator before development; the state directly regulates floodplain work only on state-owned or state-operated property, while a local permit may also be required³¹³². Have the completed septic system inspected and approved before use³³.

What to check before you buy land in Marshall County

Marshall County farmland averages about $2,584 an acre³⁴, while a typical home is valued around $214,960³⁵. Annual precipitation is roughly 40.8 inches, but severe drought has occurred in about 22% of years, so investigate well yield and water plans rather than relying on rainfall averages³⁶³⁷. All county land is at a 15% slope or less, and about 41.1% is wooded³⁸³⁹. Population density is about 43 people per square mile, and the nearest city of 100,000 or more is roughly 55 miles from the county center⁴⁰⁴¹. The effective property-tax rate is about 0.6%, with a median annual bill near $824⁴²⁴³. Before closing, verify boundaries and town limits, check flood risk with the county floodplain administrator³², and confirm septic feasibility with DEQ because conventional drain fields face severe soil limitations across much of the county²⁵⁴⁴.

Watch-outs

Whether Marshall County administers a county building-code ordinance is unconfirmed; Oklahoma's statewide minimum codes apply, and the Marshall County Commissioners can clarify local administration⁴⁵¹⁴.
The State Fire Marshal permit exemption for specified structures in unincorporated areas is based on the structure and location, not owner-builder status, and it does not waive every possible local requirement².
Short-term rental rules and a general water/sewer hookup requirement for Marshall County are not published on any official source checked; if that matters to your plans, confirm with the Marshall County Office of the Commissioners¹⁴.
The rural zoning and State Fire Marshal answers do not carry into Madill, which has city zoning regulations and its own adopted building code⁴³.
For floodplain work, Oklahoma directly regulates only state-owned or state-operated property; ask the Marshall County floodplain administrator whether a local development permit applies to your parcel³¹³².

Sources

Written October 14, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Compared with neighboring counties

Like all 6 of its neighbors, Marshall County has no countywide zoning.

Rule	Marshall County	Johnston County	Love County	Bryan County	Carter County	Murray County	Coal County
Building permit	Not required	Not required	Not required	Not required	Not required	Limited	Not required
County zoning	No	No	No	No	No	No	No
Septic permits	OK DEQ	OK DEQ	OK DEQ	OK DEQ	OK DEQ	OK DEQ	OK DEQ

How Marshall County scores

Seclusion3228% ev.

Self-Sufficiency58100% ev.

Admin Boringness8290% ev.

Durability44100% ev.

Property Autonomy69100% ev.

Carry Cost83100% ev.

Evidence strength: 83%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$215kTypical home

0.6%Property tax

$2,584Land / acre

40.8"Annual rain

22% of yrsSevere drought

36.2 / yr (+21.8)Mid-century 100°F days

22.9 daysMid-century dry spell

2.59" (+5.8%)Mid-century 1-day rain

1.41×Wildfire change factor

100%Forward climate coverage

$2,329Home insurance / yr

0.8% / yrInsurance growth

0.83%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

48,158People within 30 min

8,971,706People within 2 hr

44,157Radius comparison (15 mi)

43People / sq mi

0%Federal land

100%Land at 15% slope or less

27.1%Soils rated "not limited" for septic (strict USDA rating)

55,607 acWorkable land screen

41.1%Wooded land

33.4 tonsBiomass / forest ac

63.3°FAvg temp

Answers from the rulebook for Marshall County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Marshall County rules

Zoning districts · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Minimum dwelling size · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Minimum lot size · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Setbacks · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Lot coverage · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Building height · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Living in an RV · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Camping on your land · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Tiny homes · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Manufactured homes · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Accessory dwellings · by state lawNo county rule
Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org.
- Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
- The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning power is limited to unincorporated areas of the county.
“The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
Subdividing landRegulated (with conditions)
Residential development subdivisions outside the corporate limits of a city or town in Marshall County, where the plat must describe water supply and sewage-treatment methods.
- The plat must be filed with the Oklahoma Department of Environmental Quality.
- DEQ approval must be obtained before recording the plat, offering lots for sale, or beginning construction.
- The plat must describe water supply and sewage-treatment methods.
- If public water or public sewage will be used, preliminary DEQ approval must be submitted with the plat.
- The plat must state the actual size of each lot in square feet, acres, or fractions of acres.
- The plat must identify public water-supply sources, including wells and surface-water supplies, within 300 feet of the residential development.
- DEQ approval is shown by an approval stamp stating “approved,” with restrictions if any, the signature of DEQ or its local representative, and the date.
- Approval becomes effective 30 days after filing with DEQ unless specifically rejected earlier.
- A county clerk may not record a plat containing a lot smaller than 2.5 acres outside municipal limits unless it bears the DEQ approval stamp.
- DEQ must approve individual-residence tracts when no single tract is smaller than 2.5 acres, provided no lot is within 300 feet of a public water supply source.
- Knowingly creating a residential development without DEQ approval or without recording the plat is a misdemeanor punishable by a fine of $500 to $5,000 for each violation.
minimum lot size for DEQ approval exception: >= 2.5 acres (Individual-residence tracts; no lot may be within 300 feet of a public water supply source) · public water supply setback: < 300 feet (Applies to public water-supply sources, including wells and surface-water supplies) · DEQ approval effective period: 30 days (Unless specifically rejected before expiration) · civil/criminal fine: $500-$5,000 USD per violation (Knowingly creating the development without required approval or recordation)
“Approval of the plat shall be obtained prior to recording the plat, offering a lot or lots for sale or beginning construction”
Oklahoma Statutes, Title 27A, §27A-2-6-403 ↗Re-checked Oct 3, 2026
Permit feesPublished (with conditions)
Utility-line installation permits on Marshall County rights-of-way.
- Fees must be paid in advance.
- Cash or check must be made out to Marshall County Commissioners.
- The published schedule lists volatile/combustibles at $2,000 per bore, temporary above-ground lines at $300 per mile for a maximum 90-day period, utilities/cable companies/water departments normal operations at $25, and boring at $100.
volatile/combustibles fee: per 2000 USD per bore · temporary lines above ground: per 300 USD per mile, 90-day maximum · utilities, cable, water normal operations: 25 USD · boring fee: 100 USD
“Volatile/combustibles-per bore | $2000 [...] Temporary lines above ground (per mile-90 day maximum) | $300”
Fees ↗Re-checked Sep 11, 2026
Permit processPublished (with conditions)
Right-of-way utility installation permits administered by the Marshall County Board of County Commissioners.
- Each road crossing requires its own permit.
- The original signed application and payment must be mailed to Marshall County Commissioners, 100 Plaza, Room 106, Madill, OK 73446.
- Permits must be received by noon on the Thursday before the Monday review date.
- The permit is valid for 30 days unless otherwise agreed when approved by the Board.
- Applicants must notify the Board 48 hours before installation and maintenance or repair, except emergency repairs; a final inspection is required after completion.
permit validity: 30 days (unless otherwise agreed upon at approval) · submission deadline: noon on the Thursday before the Monday review · pre-installation notice: 48 hours (emergency repair notification may be made as soon as possible)
“Each road crossing must have its own permit. [...] All permits must be received by noon on the Thursday before the Monday you wish to have your permit reviewed by the Board.”
Application for Permit – Right of Way Utility Installation ↗Re-checked Sep 11, 2026
County-wide zoningAbsent
No county zoning or planning department is listed for Marshall County, Oklahoma.
Marshall County, OK - Departments ↗Scouted from the county site, not yet independently re-checked

Oklahoma rules that apply here

Building permitLimited
Construction or alteration in unincorporated Marshall County of a single-family dwelling, duplex residential dwelling, barn, shed, or carport attached to a single-family dwelling or duplex residential dwelling, as governed by the Oklahoma State Fire Marshal permit statute.
- The exemption is from obtaining a permit from the State Fire Marshal; § 74-324.11(D) preserves any city, town, or county ordinance or order requiring local plans and permits.
- The quoted exemption applies only when the structure is located in an unincorporated area of a county.
- The statute also excludes locations owned or operated by, or purchased or leased from, a state beneficiary public trust from the preceding State Fire Marshal permitting sentence.
- For other building-code occupancies or where a local authority requires a permit, the applicable local or State Fire Marshal permit process applies.
“obtain a permit from the State Fire Marshal for the construction or alteration of a single-family dwelling [...] in an unincorporated area of a county.”
Oklahoma Statutes, Title 74, § 324.11 ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Limited — State Fire Marshal permitting for construction or alteration of a single-family dwelling, duplex residential dwelling, barn, or shed, or a carport attached to a single-family or duplex residential dwelling, when located in an unincorporated area of an Oklahoma county.
  “Furthermore, nothing in this subsection shall be construed as requiring a person to obtain a permit from the State Fire Marshal for the construction or alteration of a single-family dwelling, duplex residential dwelling, barn, shed, or carport attached to a single-family dwelling, or duplex residential dwelling when such structure is located in an unincorporated area of a county.”
  Oklahoma Statutes - Title 74, § 74-324.11 ↗Re-checked Oct 1, 2026
Owner-builder exemptionConditional
Owners, certain lessees, and family or employees performing roofing work on qualifying residential, farm, commercial, or single-family dwelling property in Oklahoma.
- An actual owner of residential or farm property may physically perform roofing services or have family or employees perform them on property owned by the person.
- Owners of commercial properties, including residential rental properties consisting of four dwelling units or less, must act as their own roofing contractor, provide all material supervision themselves, and install roofing materials according to the IBC as adopted by the OUBCC or the manufacturer's installation instructions.
- A lessee of residential property must have the owner's consent and must perform the roofing work personally or with the lessee's own employees, using materials installed according to the IBC as adopted by the OUBCC or the manufacturer's installation instructions.
- An owner building or improving a single-family dwelling residence for the owner's occupancy and not intended for sale or rent must act as the owner's own roofing contractor, provide all material supervision, and install materials according to the IRC or IBC as adopted by the OUBCC or the manufacturer's installation instructions.
- A person working on the person's own property or that of an immediate relative without compensation is listed as exempt.
- Non-exempt roofing contractors must register annually with the CIB; the source states that the application requires the required fee and documentation but does not state an amount.
- This source concerns state roofing registration and does not establish that local building permits or inspections are waived.
residential rental property size: <= 4 dwelling units (The exemption is stated for residential rental properties consisting of four dwelling units or less.)
“An actual owner of residential or farm property who physically performs, or has family or employees perform roofing services on property owned by such person;”
Notice of Required Registration & Endorsement — Roofing Contractor Registration Act ↗Re-checked Oct 4, 2026
5 more reviewed findings on this topic
- Conditional — State Fire Marshal permitting for construction or alteration of specified residential structures in unincorporated areas of Oklahoma counties, including unincorporated Marshall County.
  “a person to obtain a permit from the State Fire Marshal for the construction or alteration of a single-family dwelling, duplex residential dwelling”
  Oklahoma Statutes ↗Re-checked Oct 4, 2026
- Available (with conditions) — An individual performing electrical work on the individual's own property or residence in Oklahoma.
  “3. An individual to hold a license before doing electrical work on his own property or residence except as may be required by local ordinances and resolutions.”
  Oklahoma Statutes — Title 59, Professions and Occupations ↗Re-checked Oct 4, 2026
- Conditional — A property owner of record or authorized representative performing minor mechanical repairs in Oklahoma.
  “1. A person who is the property owner of record, or his or her authorized representative, when performing minor repair which shall include, but not be limited to, cleaning, adjusting, calibrating and repair of mechanical system parts and the replacement of fuses and room thermostats, and other minor repairs which shall not include any repair which could violate the safe operation of the equipment;”
  Oklahoma Statutes — Title 59, Professions and Occupations ↗Re-checked Oct 4, 2026
- Conditional — An individual performing electrical work on the individual's own property or residence under the Oklahoma Electrical License Act.
  “hold a license before doing electrical work on his own property or residence except as may be required by local ordinances and resolutions.”
  Title 59 Electrical License Act ↗Re-checked Oct 4, 2026
- Available (with conditions) — An individual performing plumbing work on the individual's property of residence in Oklahoma.
  “The provisions of The Plumbing License Law of 1955 shall not apply to: [...] 6. An individual who performs plumbing work on such individual’s property of residence.”
  Oklahoma Statutes — Title 59, Professions and Occupations ↗Re-checked Oct 4, 2026
Building code adoptedAdopted
Minimum residential and commercial building-code standards applicable statewide, including Marshall County, subject to lawful local administration and higher local standards.
- The OUBCC adopted the 2024 International Building Code effective September 14, 2026.
- The OUBCC adopted the 2024 International Residential Code effective September 14, 2026.
- Municipalities and other political subdivisions must abide by the statewide minimum standards but may enact and enforce higher standards.
- In unincorporated areas, the Construction Industries Board enforces electrical, mechanical, plumbing, and fuel-gas minimum codes, while the Oklahoma State Fire Marshal enforces commercial building code.
- The State Fire Marshal page states that its statewide jurisdiction continues unless a county or city/town has provided a completed AHJ agreement; the agreement covers plan reviews and associated inspections and lasts three years from the last signature, subject to thirty-day termination notice.
- The statutory exception for an unincorporated single-family dwelling, duplex, barn, shed, or attached carport under 74 O.S. § 324.11(C) was located in the official Oklahoma statutes PDF, but that source is not needed to establish this adoption claim.
IBC edition: 2024 · IRC edition: 2024 · effective date: 2026-09-14
“Codes and standards adopted by the Commission shall be the minimum standards for residential and commercial construction in this state.”
Adopted Building Codes ↗Re-checked Oct 6, 2026
5 more reviewed findings on this topic
- Adopted (with conditions) — Minimum statewide building-code framework relevant to construction in Oklahoma, including Marshall County; specific code-level adoption remains a local-jurisdiction decision.
  “Codes and standards adopted by the Commission shall be the minimum standards for residential and commercial construction in this state.”
  Energy Efficiency ↗Re-checked Sep 11, 2026
- Adopted (with conditions) — Residential and commercial construction in Marshall County to the extent governed by Oklahoma's statewide minimum building-code requirements.
  “The Oklahoma Uniform Building Code Commission shall have the power and the duty to review and adopt all building codes for residential and commercial construction to be used by all entities within this state. Codes and standards adopted by the Commission shall be the minimum standards for residential and commercial construction in this state.”
  OUBCC Frequently Asked Questions ↗Re-checked Oct 4, 2026
- Adopted — Commercial building construction throughout Oklahoma, subject to the OUBCC amendments and lawful requirements of other jurisdictions.
  “748:20-2-1., 748:20-2-2., 748:20-2-3., and 748:20-2-4., adopt the IBC® 2024 edition, without appendices and establishes the IBC® 2024 edition as the statewide minimum code for commercial construction in the State of Oklahoma.”
  2026 748 Chapter 20, Adopted Codes — International Building Code, 2024 Edition ↗Re-checked Oct 1, 2026
- Adopted — Minimum building-code standards for residential and commercial construction throughout Oklahoma, including construction subject to local county or municipal enforcement.
  “Base model codes have been adopted by reference and amended at the state level.”
  Oklahoma Statutes, Title 59 — Professions and Occupations ↗Re-checked Oct 1, 2026
- Adopted — Minimum building codes for residential and commercial construction throughout Oklahoma, including construction in unincorporated areas.
  “Codes and standards adopted by the Commission shall be the minimum standards for residential and commercial construction in this state.”
  Adopted Building Codes ↗Re-checked Oct 5, 2026
InspectionsRequired
Projects in Marshall County that are permitted by the Oklahoma State Fire Marshal's Office.
- The requirement applies to permitted projects and is for compliance with the permit and applicable codes.
- Inspection requests must allow at least 7 days of advance notice.
- A 50% inspection and a 100% final inspection are described; one of each is provided at no cost, while failed final inspections incur a $100 re-inspection fee per inspection site visit.
- If a local city or county has a current State Fire Marshal AHJ agreement, that local AHJ is responsible for the applicable plan reviews and inspections instead.
inspection request notice: >= 7 days · failed 100% final inspection re-inspection fee: 100 USD per inspection site visit
“All permitted projects are required to be inspected for compliance with the permit and the applicable codes.”
Inspections ↗Re-checked Sep 11, 2026
Certificate of occupancyRequired
Projects in Marshall County permitted and inspected by the Oklahoma State Fire Marshal's Office where a Certificate of Occupancy is issued through the OKSFM process.
- The project must pass the final inspection by an OKSFM Agent before the agent recommends issuance.
- The Certificate of Completion — Final Statement of Compliance Form must be submitted at final inspection before a Certificate of Occupancy is issued.
- Occupancy or use before furnishing the required form and satisfactory inspection is expressly forbidden under the OKSFM regulation quoted in the official form.
- A local AHJ may issue the certificate when it has an applicable State Fire Marshal agreement.
final inspection notice: >= 7 days · failed 100% final inspection re-inspection fee: 100 USD per inspection site visit
“before a Certificate of Occupancy is issued, this completed form shall be submitted to the State Fire Marshal Agent at final inspection.”
Inspections — Certificate of Occupancy ↗Re-checked Sep 11, 2026
Who permits septicState
Statewide administration and regulatory oversight of individual and small public on-site sewage treatment systems in Oklahoma.
- The DEQ Environmental Complaints and Local Services Division administers the on-site sewage treatment program, including soil tests, designs, installation inspections, and oversight of certified installers, profilers, and septage pumpers and transporters.
“ECLS administers Oklahoma’s on-site sewage treatment program.”
Environmental Complaints & Local Services ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- State — Individual and small public on-site sewage treatment systems in Marshall County under Oklahoma’s statewide program.
  “ECLS administers Oklahoma’s on-site sewage treatment program.”
  Environmental Complaints & Local Services ↗Re-checked Sep 11, 2026
Septic permitRequired
Installing a new or modifying an existing individual or small public on-site sewage treatment system statewide.
- Before installation or modification, an Authorization to Construct must be purchased and issued by DEQ.
- The Report for On-Site Sewage must be reviewed by DEQ before the Authorization to Construct may be issued.
- Alternative on-site systems must be approved by DEQ before installation.
- Effective November 1, 2025, individuals not certified through DEQ may install only one on-site sewage treatment system per calendar year.
“Before installing a new or modifying an existing on-site sewage treatment system, an Authorization to Construct (ATC) must be purchased and issued by DEQ. After the ATC is purchased, it is assigned to the local DEQ Environmental Specialist (ES), based on the location of the property, for review and issuance. The Report for On-Site Sewage (581) must be reviewed by DEQ before the ATC may be issued.”
On-Site Sewage Treatment ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Required — Installing a new or modifying an existing on-site sewage treatment system in Marshall County.
  “Before installing a new or modifying an existing on-site sewage treatment system, an Authorization to Construct (ATC) must be purchased and issued by DEQ. After the ATC is purchased, it is assigned to the local DEQ Environmental Specialist (ES), based on the location of the property, for review and issuance. The Report for On-Site Sewage (581) must be reviewed by DEQ before the ATC may be issued.”
  On-Site Sewage Treatment ↗Re-checked Sep 11, 2026
Septic inspectionRequired
All new installations and modifications to on-site sewage systems in Marshall County.
- Inspection and approval must occur before the system may be placed into operation.
- Inspection may be performed by DEQ, or the system may be self-inspected and approved by a certified installer.
- Certified-installer final inspections must be submitted to DEQ within 15 days of completion.
- Final inspections are documented on DEQ Form 641-576 and must identify system components, locations, and minimum separation distances under Chapter 641.
certified-installer final inspection submission deadline: 15 days after completion
“All new installations or modifications to an on-site sewage system must be inspected and approved by DEQ or installed, self-inspected and approved by a certified installer before the system may be placed into operation. Final inspections are documented on DEQ Form 641-576. The information provided must clearly identify all system components, their location on the property, and minimum required separation distances per Chapter 641. Final inspections performed by a certified installer must be submitted to DEQ within 15 days of completion.”
On-Site Sewage Treatment ↗Re-checked Sep 11, 2026
Off-grid sanitationLimited
Off-grid or non-public-sewer sanitation for rural homes and businesses in Marshall County under Oklahoma's statewide on-site sewage treatment program.
- A DEQ Authorization to Construct must be purchased and issued before installing a new or modifying an existing on-site sewage treatment system.
- The Report for On-Site Sewage, Form 581, must be reviewed by DEQ before the Authorization to Construct may be issued.
- All new installations and modifications must be inspected and approved by DEQ, or installed, self-inspected, and approved by a certified installer before operation.
- Alternative on-site systems require DEQ approval before installation.
- Beginning November 1, 2025, a person who is not certified through DEQ may install only one on-site sewage system per calendar year.
- A non-certified installer must be present for DEQ inspection, and deficiencies must be corrected before final inspection and operation.
- The DEQ page states that most rural Oklahoma homes and businesses not served by public sewer use onsite sewage treatment systems.
- Periodic septic-tank pumping is required for proper long-term operation, and Oklahoma law requires licensing for persons who pump, haul, or dispose of domestic wastewater from septic tanks, holding tanks, chemical toilets, or similar wastewater holding tanks.
- Program fees increased effective July 1, 2026 under the annual Consumer Price Index adjustment; applications submitted on or after that date are subject to the new fee schedule.
non-certified installer limit: 1 on-site sewage system per calendar year (Applies beginning November 1, 2025.) · alternative-system approval: DEQ approval before installation · fee schedule change: annual Consumer Price Index adjustment (Effective July 1, 2026; applications submitted on or after that date are subject to the new fee schedule.)
“Before installing a new or modifying an existing on-site sewage treatment system, an Authorization to Construct (ATC) must be purchased and issued by DEQ.”
On-Site Sewage Information ↗Re-checked Oct 3, 2026
One more reviewed finding on this topic
- Allowed (with conditions) — On-site sewage treatment systems used by Oklahoma homes and businesses where sewage is treated on the property rather than through a centralized sewer system.
  “determines what types of on-site systems are allowed for the property.”
  On-Site Sewage Information ↗Re-checked Oct 5, 2026
Well permitRequired
Groundwater wells drilled or used for non-domestic purposes in Oklahoma, including public water supply, industrial, commercial, oil and gas, poultry, medical-marijuana, and irrigation of more than 3 acres.
- A well drilling contractor must obtain OWRB authorization and approval before drilling.
- Authorization will not be issued unless the well location has an active groundwater use permit.
- Groundwater permit applications must be filed before taking or using groundwater and before drilling.
- The applicant must own or lease the land, the land must overlie a fresh groundwater basin or subbasin, the proposed use must be beneficial, and waste by depletion or pollution must not occur.
- Failure to submit an intent-to-drill application when required may result in a penalty of up to $5,000 per day per violation.
irrigation threshold for intent-to-drill authorization: > 3 acres (Irrigation of less than 3 acres is listed as not requiring intent-to-drill authorization.) · application response time: 5 business days approximately (OWRB staff response time stated on the Wells & Licensing page.) · maximum penalty for failure to submit required intent-to-drill application: <= 5000 USD per day per violation
“Any well drilling contractor who intends to drill a groundwater well for non-domestic use must apply for authorization”
Wells & Licensing ↗Re-checked Oct 5, 2026
4 more reviewed findings on this topic
- Not required — Domestic groundwater use in Marshall County for household purposes, livestock up to the land’s grazing capacity, and irrigation of less than 3 acres.
  “A water permit is not required for domestic use of groundwater”
  Wells & Licensing ↗Re-checked Sep 11, 2026
- Required — Non-domestic groundwater wells in Marshall County, including public water supply, industrial, medical marijuana grow, poultry, commercial, oil and gas recovery, and irrigation exceeding 3 acres.
  “must apply for authorization and receive approval from the OWRB prior to drilling.”
  Wells & Licensing ↗Re-checked Sep 11, 2026
- Not required — Domestic use of groundwater and domestic groundwater wells used for household purposes, qualifying livestock, or irrigation of less than three acres statewide.
  “A water permit is not required for domestic use of groundwater”
  Apply for a Water Permit ↗Re-checked Sep 12, 2026
- Not required — Domestic groundwater use in Oklahoma, including household purposes, livestock up to the land’s grazing capacity, and irrigation of less than 3 acres.
  “A water permit is not required for domestic use of groundwater”
  Apply for a Water Permit ↗Re-checked Oct 5, 2026
Agricultural exemptionAvailable
The erection or use of usual farm buildings for agricultural purposes, and the planning of agricultural crops, including in unincorporated Marshall County, Oklahoma.
- The exemption is from county zoning authority; it does not establish an exemption from unrelated state or federal requirements.
- The source refers to usual farm buildings used for agricultural purposes and to planning agricultural crops.
- The source also states that county zoning authority does not apply to structures and equipment of public service corporations subject to applicable regulatory jurisdiction, and that zoning is prohibited to the extent it amounts to a constitutional taking.
“Fourth, county zoning authority does not apply to the erection or use of the usual farm buildings for agricultural purposes or the planning of agricultural crops.”
FAQs - Counties and Townships Authority to Zone, Permit, and Approve Certain Wind, Solar, and Other Green Energy Construction Projects ↗Re-checked Sep 11, 2026
2 more reviewed findings on this topic
- Available (with conditions) — The zoning power conferred by Oklahoma Title 19 on municipalities and counties, including county unincorporated areas, as applied to usual farm buildings used for agricultural purposes and the planning of agricultural crops.
  “shall not apply to [...] the usual farm buildings for agricultural purposes”
  Oklahoma Statutes, Title 19 — Zoning exemptions and farm-building permits ↗Re-checked Sep 12, 2026
- Available (with conditions) — Construction of a farm home or other farm building under the Title 19 city-county planning and zoning act.
  “No fees or permits shall be required for [...] any farm building.”
  Oklahoma Statutes, Title 19, Section 19-863.25 ↗Re-checked Sep 12, 2026
Driveway accessLimited
Driveways connecting to Federal or State Highway rights-of-way in Oklahoma.
- An approved Driveway Agreement is required before work on the State Highway right-of-way.
- The application requires an original Driveway Agreement and a sketch or site plan.
- Drainage must be properly disposed of and runoff may not run onto the highway.
- If the driveway is within city limits, the Agreement must be signed or permitted in writing by a city authority.
- No alteration or relocation may be made without prior written permission from ODOT or its authorized representatives.
- The permit expires if the driveway is not constructed within six months after the effective date unless a written extension is requested.
permit expiration period: 6 months (Unless the applicant requests a written time extension from ODOT.)
“Under no circumstances shall the applicant be permitted to do any work on the State Highway right-of-way until an approved copy of the application is in hand.”
Instructions for Driveway Permit Application ↗Re-checked Sep 12, 2026
Building in a floodplainLimited
Oklahoma's statewide floodplain-management framework and OWRB coordination of participating communities; the sources do not establish one uniform statewide permit requirement for all private development.
- The OWRB provides guidance and coordination rather than administering every local floodplain regulation.
- Floodplain regulations are developed and enforced by local participating communities in designated flood hazard areas.
- Participation in the National Flood Insurance Program is community-based; local requirements can therefore vary by participating community.
- The Oklahoma Floodplain Management Act was passed in 1980.
- A 2004 amendment requires floodplain administrators to become accredited through the OWRB.
“The Oklahoma Floodplain Management Act, passed in 1980, authorizes communities to develop floodplain regulations, designate flood hazard areas, and establish floodplain boards.”
Floodplain Management ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Limited — Development in floodplains on state-owned or state-operated property in Oklahoma, including such property within Marshall County.
  “You may need a floodplain development permit from the local jurisdiction in which you live, such as a city, town, or county. Prior to any construction or development on your property, you should contact your local floodplain administrator. The OWRB only regulates development in floodplains of state-owned or state-operated property.”
  Floodplain Management FAQ ↗Re-checked Oct 3, 2026
county zoning authorityLimited
County zoning authority in unincorporated areas under Oklahoma Statutes Title 19, Sections 868.1 through 868.22.
- The authority applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
- The zoning authority is for unincorporated areas of the county.
- Existing lawful uses are protected except as otherwise provided by the statute.
- The statute excludes public utilities subject to Corporation Commission or similar state or federal regulation, usual farm buildings for agricultural purposes, planting agricultural crops, and extraction of minerals.
- Zoning regulations must address the statutory public-health, safety, welfare, transportation, utilities, public facilities, and land-use purposes.
county population threshold: > 500000 persons (latest Federal Decennial Census)
“population in excess of five hundred thousand (500,000)”
Oklahoma Statutes - Title 19, Counties and County Officers ↗Re-checked Oct 5, 2026
2 more reviewed findings on this topic
- Limited — County zoning regulations for unincorporated areas under Title 19, §§19-868.1 through 19-868.22.
  “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
  Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
- Limited — County planning and zoning through a cooperative city-county planning commission for the unincorporated area of an eligible county.
  “county plan within the unincorporated area”
  Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026
county building authorityLimited
County adoption and enforcement of building or fire codes in unincorporated areas under 19 O.S. § 868.17A.
- The authority applies only in unincorporated areas.
- The provision does not apply to counties not subject to 19 O.S. §§ 868.1 through 868.22; those provisions apply only to counties with a population in excess of 500,000 according to the latest Federal Decennial Census.
- Public-utility electric supply and communication lines regulated by the Corporation Commission are excluded.
- The county may prescribe permits, notices, inspection procedures, and reasonable fees sufficient to cover inspection and enforcement expenses.
- Building inspectors must be licensed by Oklahoma.
county population threshold: > 500000 persons (latest Federal Decennial Census) · inspection and enforcement fees: reasonable and sufficient to meet inspection and enforcement expense
“may, by resolution, adopt building codes, fire codes”
Oklahoma Statutes - Title 19, Counties and County Officers ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Limited — County adoption and enforcement of building and fire codes, including permits and inspections, in unincorporated areas under Title 19, §§19-868.1 through 19-868.22.
  “The board of county commissioners may, by resolution, adopt building codes, fire codes, or both building and fire codes which shall be designed for the purpose of promoting, benefiting, and protecting the public health, safety and welfare of the people of this state. The codes adopted pursuant to this section shall be applicable only in the unincorporated areas of the county. All building materials, equipment, and methods of installation or construction shall be at least the equivalent of that prescribed in any building or fire code adopted by the board of county commissioners in quality, strength, effectiveness, fire resistance, durability, and safety. Any codes adopted pursuant to this section shall not apply to the installation and maintenance of electric supply and communication lines of public utilities and public service companies which are regulated by the Corporation Commission. The provisions of this section shall not apply to any area located within any county not subject to the provisions of Section 868.1 through 868.22 of Title 19 of the Oklahoma Statutes. Building inspectors may be employed by a county to enforce building or fire codes. The building inspectors shall be licensed by the State of Oklahoma. The building inspectors shall enforce the provisions of any building or fire code adopted pursuant to this section and shall be authorized to inspect all buildings for the purpose of discharging the duties imposed by this section or by any building or fire code adopted by the board of county commissioners. The board of county commissioners may adopt rules to carry out the inspections to enforce the building or fire codes, may prescribe the necessary permits, notices, and inspection procedures and may set and determine fees. The fees shall be reasonable and shall be sufficient to meet the expense of inspection and enforcement of the building or fire codes.”
  Oklahoma Statutes - Title 19. Counties and County Officers ↗Re-checked Sep 21, 2026

Inside cities and towns in Marshall County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

Building code adoptedAdopted (with conditions)
Building construction within the City of Madill, Oklahoma, including one- and two-family dwellings where the residential code applies.
- The code page identifies Ordinance No. 702, section 1, dated January 14, 1997, and Ordinance No. 897, section I, dated October 14, 2008, for the general building-code adoption.
- The International Building Code is adopted with additions, insertions, deletions, and changes prescribed in the municipal chapter.
- The code page separately identifies Ordinance No. 703, section 1, dated January 14, 1997, and Ordinance No. 890-A, section I, dated October 14, 2008, for the International Residential Code adoption.
- Madill's building-code chapter lists residential and commercial permit fees and inspection fees, including residential fees of $0.10 per square foot with a $35 minimum and $300 maximum, commercial fees of $0.15 per square foot with a $50 minimum and $500 maximum, and a $25 single-inspection fee.
- The code page states that at least one copy of the building code is on file in the city clerk's office.
residential permit fee: $0.10 per square foot, minimum $35, maximum $300 USD · commercial permit fee: $0.15 per square foot, minimum $50, maximum $500 USD (Inspection included) · single inspection fee: 25 USD
“The International Building Code, the latest addition thereof [...] Is adopted as the building code of the City of Madill.”
Chapter 5-1: Building Code and Regulations - City of Madill, OK ↗Re-checked Oct 4, 2026
Local zoningPresent (with conditions)
Property within the corporate limits of the City of Madill, Marshall County, Oklahoma; annexed territory is subject to the regulations under the stated conditions.
- The ordinance applies within Madill's corporate limits.
- Territory annexed after the regulations' effective date is immediately subject to the regulations and is designated A-General Agricultural District until altered or reclassified as provided by law.
- The zoning districts and boundaries are established by ordinance and shown on the official zoning map.
- The City of Madill official website links to the cited eCode360 code.
“These regulations shall be in full force and effect in the corporate limits of the city. Territory annexed to the corporate limits of the city, subsequent to the effective date of these regulations shall immediately be subject to the provisions of these regulations and shall be deemed to be designated as A-General Agricultural District until altered or reclassified in the manner provided by law.”
City Charter and Code – City of Madill ↗Re-checked Oct 4, 2026
One more reviewed finding on this topic
- Present (with conditions) — Zoning within the City of Madill, Oklahoma.
  “Chapter 12-2 Zoning Regulations (§ 12-201 – § 12-295)”
  Table of Contents - City of Madill, OK ↗Re-checked Oct 4, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

Mandatory utility hookup — Water and sewer connection requirements for property in Marshall County.
Short-term rentals — Short-term rental use in Marshall County, including unincorporated areas.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Marshall County, Oklahoma

Is Marshall County a good place to live off-grid or homestead?

Marshall County scores 61/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and low administrative friction for a quiet rural property. Watch-outs: about 48,158 people within a 30-minute drive.

Do you need a building permit in Marshall County, Oklahoma?

Marshall County does not require a county building permit for a home in unincorporated areas, and it has no county-wide zoning. Onsite septic is permitted by Oklahoma Department of Environmental Quality (DEQ), On-Site Sewage program. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Marshall County?

Living in an RV on your own land in Marshall County is allowed: Unincorporated Marshall County: no county rule sets this, because Marshall County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). The county legal census found no county zoning ordinance, citing marshall.okcounties.org. Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits. The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Marshall County, Oklahoma?

Land in Marshall County runs about $2,584 per acre, based on the latest county data.

What is the water situation in Marshall County?

Marshall County gets about 40.8" of rain a year, with severe drought in roughly 22% of years.

How remote is Marshall County?

A representative private-land location has about 48,158 people within a 30-minute drive and 8,971,706 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Building permits, zoning and land rules in Marshall County, Oklahoma

At a glance

Who to call

Do you need a building permit in Marshall County, Oklahoma?

Who handles building permits and inspections for other projects in Marshall County, Oklahoma?

Does Marshall County, Oklahoma have zoning?

How do septic permits work in Marshall County, Oklahoma?

Can you live in an RV or tiny home on your land in Marshall County?

Building a home in Marshall County: the steps, in order

What to check before you buy land in Marshall County

Watch-outs

Sources

Compared with neighboring counties

Marshall County in Oklahoma

How Marshall County scores

Find land. Bring the promising ones back.

Parcel due diligence

Cities and towns in Marshall County

Answers from the rulebook for Marshall County

Marshall County rules

Oklahoma rules that apply here

Inside cities and towns in Marshall County

Still unanswered

Living off-grid in Marshall County, Oklahoma

Is Marshall County a good place to live off-grid or homestead?

Do you need a building permit in Marshall County, Oklahoma?

Can you live in an RV or tiny home on your land in Marshall County?

How much does land cost in Marshall County, Oklahoma?

What is the water situation in Marshall County?

How remote is Marshall County?

How Marshall compares in Oklahoma