Bolthole Index

Tillman County, Oklahoma

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

43Index Score / 100
#68 of 77 in Oklahoma

Tillman County, Oklahoma appears not to require a residential building permit in unincorporated areas, and an ordinary single-family home there does not need a State Fire Marshal building permit12. Statewide building codes still apply, while the City of Frederick has its own Planning and Zoning chapter34. Oklahoma DEQ handles septic permits throughout Tillman County5.

At a glance

Building permit
Apparently not required by the county; ordinary unincorporated homes are exempt from the State Fire Marshal permit12
Building codes
The amended 2024 statewide codes took effect September 14, 20266
Zoning
No county zoning rule for unincorporated land; Frederick has municipal zoning78
RV / tiny home / manufactured home occupancy
Unrestricted by county zoning, because the county has no zoning power to regulate it7
Septic permit
Required statewide; Authorization to Construct issued by Oklahoma DEQ9
Septic soils
Only 18.9% of soils are free of severe limits for a conventional drain field10
Owner-builder
General contractors need no state license, but trade rules still apply; qualifying owners may do their own roofing1112
Rural subdivision minimum lot size
2.5 acres per lot unless DEQ approves a smaller one on the recorded plat13

Who to call

Floodplain permits

Tillman County Emergency Management

County emergency management; the director also serves as the Tillman County Flood Plain Administrator

580.335.7549

ethan.cook@tillmancountyok.gov

1200 S Main, Frederick, OK 73542

Also useful

Tillman County Clerk

Land records and plat filing for Tillman County, including the DEQ-approved plat required before recording a rural residential development

580.335.3421 ext 3

countyclerk@tillmancountyok.gov

201 N Main St, Frederick, OK 73542

Building permits

Oklahoma State Fire Marshal's Office

Statewide building-permit default for areas with no local permit authority, with a statutory carve-out for single-family homes, duplexes, barns, sheds, and attached carports in unincorporated areas

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

Off-grid gear

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

Tillman County appears not to require a residential building permit in its unincorporated area, although the county does not publish an express permit statement; confirm the parcel and project with the County Clerk before work begins114. A single-family dwelling, duplex, barn, shed, or attached carport in an unincorporated county area does not need a State Fire Marshal building permit2. Other project types may enter the State Fire Marshal building-permit process when no local authority issues one15. Oklahoma's amended 2024 statewide building codes, effective September 14, 2026, apply in Tillman County, including unincorporated areas, and electrical, mechanical, plumbing, and fuel-gas codes are enforced there by the Construction Industries Board3. A State Fire Marshal-permitted project must pass inspections before receiving a certificate of occupancy1617.

Who issues building permits in Tillman County?

Tillman County does not list a building, inspection, or code-enforcement department, so the County Clerk is the practical first call to confirm whether an unusual project on unincorporated land needs county approval114. Qualifying nonresidential or other nonexempt projects may instead enter the State Fire Marshal building-permit, inspection, and occupancy process151617. Inside Frederick, the city has its own Planning and Zoning chapter, and we could not confirm how the city handles building permits, so ask the city; Oklahoma DEQ still handles septic permits based on the property's location45. Tillman County Emergency Management includes the county Flood Plain Administrator for parcel-specific flood questions18. The County Clerk receives utility road-crossing permit applications for approval by the Board of County Commissioners19.

Does Tillman County have zoning?

Unincorporated Tillman County has no county zoning rule setting dwelling size, setbacks, lot coverage, building height, accessory-dwelling rules, or RV and tiny-home occupancy limits7. That answer does not extend into Frederick: the city has its own Planning and Zoning chapter, so buyers there must check the parcel's city zoning district and building rules; septic permits remain with Oklahoma DEQ205. Usual farm buildings used for agriculture and crop planning are outside county zoning authority, but that exemption does not waive septic, floodplain, subdivision, or municipal requirements21. For an unincorporated subdivision with public roads, the county commissioners must review the plat, road assurances, and whether the county will maintain those roads22. The 2.5-acre rule concerns recording a residential-development plat without a DEQ approval stamp, not a universal minimum parcel size13.

How do septic permits work in Tillman County?

Oklahoma DEQ administers Tillman County's on-site sewage program, with a local environmental specialist reviewing and issuing authorizations according to the property's location5. Before installing a new system or modifying an existing one, buy an Authorization to Construct and have DEQ review the on-site sewage report23. Only 18.9% of Tillman County soils are rated free of severe limits for a conventional drain field, so settle the system type and location before choosing a house site10. A new or modified system must be inspected and approved before operation; a person without DEQ certification may install only one on-site system per calendar year23. A residential-development plat outside a city or town also needs DEQ approval before recording, lot sales, or construction24.

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

Tillman County sets no county zoning restriction on RV occupancy, tiny-home occupancy, manufactured-home occupancy, or temporary camping on unincorporated land7. Property inside Frederick is different because Frederick has municipal planning and zoning; ask the city about the parcel's district before relying on the unincorporated-county answer8. An occupied manufactured home counts as a permanent installation under state rules and must follow the applicable federal installation standards or an approved manufacturer's plan25. An RV or tiny home using an on-site sewage system still needs the required DEQ authorization before that system is installed or changed26. Tillman County does not publish a countywide utility-connection rule, so ask the serving utility about water or sewer connection requirements for a particular parcel.

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

  1. Confirm whether the parcel is outside Frederick; inside the city, ask Frederick about zoning approval and building permits, while septic permits remain with Oklahoma DEQ45.
  2. Ask the Tillman County Clerk to confirm the apparently permit-free status of an unincorporated parcel and project114.
  3. Get a site-specific soil evaluation; only 18.9% of Tillman County soils are free of severe limits for a conventional drain field10.
  4. Obtain a DEQ Authorization to Construct before installing or changing the septic system26.
  5. Ask the Tillman County Flood Plain Administrator about any mapped flood hazard affecting the building site18.
  6. Follow statewide building and trade codes, then have the septic system inspected and approved before operation627.

What to check before you buy land in Tillman County

Settle septic feasibility first because only 18.9% of Tillman County soils are free of severe limits for a conventional drain field10. Tillman County has experienced severe drought in 46.6% of recent years, so verify the parcel's actual water source and reliability28. A domestic well for a household, livestock up to the land's grazing capacity, or irrigation of less than 3 acres needs no groundwater permit, while a non-domestic well needs prior authorization and an active groundwater-use permit2930. Check flood exposure with the Tillman County Flood Plain Administrator18. A driveway or culvert on a designated state or federal highway right-of-way needs state approval before work begins31. We could not confirm a driveway permit rule for county-maintained roads, so ask the County Clerk before cutting an entrance14.

Watch-outs

  • Frederick has municipal planning and zoning, so the county's unincorporated-land answer does not apply inside the city8.
  • A State Fire Marshal-permitted project requires inspections and receives its certificate of occupancy only after passing final inspection; that process does not turn an exempt ordinary unincorporated home into a permitted project16172.
  • A pipeline, phone, cable, or utility line on or along a Tillman County road or right-of-way needs a county road-crossing permit submitted through the County Clerk, but that rule does not establish a driveway permit requirement1932.

Sources

  1. Tillman County Departments (2026 county census)
  2. Oklahoma State Fire Marshal's Office (oklahoma.gov)
  3. Codes & Rules — Adopted Building Codes, quoted and re-checked
  4. City of Frederick - Ordinances, quoted and re-checked
  5. Environmental Complaints & Local Services, quoted and re-checked
  6. oklahoma.gov, quoted and re-checked
  7. Oklahoma law on county zoning and building authority
  8. City of Frederick - Code Enforcement, quoted and re-checked
  9. Oklahoma DEQ On-Site Sewage Treatment (2026 county census)
  10. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  11. Construction Industries Board, quoted and re-checked
  12. Oklahoma Statutes - Title 59. Professions and Occupations, quoted and re-checked
  13. Oklahoma Statutes, Title 27A — Environment and Natural Resources (Oklahoma statewide rule), quoted and re-checked
  14. Tillman County Clerk (tillman.okcounties.org)
  15. oklahoma.gov, quoted and re-checked
  16. Inspections, quoted and re-checked
  17. oklahoma.gov, quoted and re-checked
  18. Tillman County Emergency Management (tillman.okcounties.org)
  19. Application for Pipeline Crossing Permit, quoted and re-checked
  20. City of Frederick - Ordinances, quoted and re-checked
  21. FAQs - Counties and Townships Authority to Zone, Permit, and Approve Certain Wind, Solar, and Other Green Energy Construction Projects, quoted and re-checked
  22. Oklahoma Statutes - Title 19, Counties and County Officers, quoted and re-checked
  23. On-Site Sewage Information, quoted and re-checked
  24. Oklahoma Statutes, Title 19, quoted and re-checked
  25. Title 765 Oklahoma Used Motor Vehicle and Parts Commission Rules and Regulations (Oklahoma statewide rule), quoted and re-checked
  26. On-Site Sewage Treatment, quoted and re-checked
  27. On-Site Sewage Treatment, quoted and re-checked
  28. Share of years in severe drought: Bolthole Index county data
  29. Apply for a Water Permit, quoted and re-checked
  30. Apply for a Water Permit, quoted and re-checked
  31. Oklahoma Statutes, Title 69, § 1210, quoted and re-checked
  32. Application for Pipeline Crossing Permit, quoted and re-checked

Written October 9, 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.

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Compared with neighboring counties

Like all 4 of the neighbors with published rules, Tillman County has no countywide zoning.

RuleTillman CountyJackson CountyComanche CountyCotton CountyKiowa CountyGreer CountyHarmon County
Building permitNot requiredLimitedNot requiredNot requiredNot requiredNot requiredNot required
County zoningNoNot publishedNoNot publishedNoNoNo
Septic permitsOK Dept. of Env. QualityOK DEQOK DEQOK Dept. of Env. QualityOK DEQOK DEQOK Dept. of Env. Quality

County locator

Tillman County in Oklahoma

43
County map
Tillman County highlighted among the Oklahoma counties · colored by Index score

How Tillman County scores

Seclusion7980% ev.
Self-Sufficiency1496% ev.
Admin Boringness8290% ev.
Durability39100% ev.
Property Autonomy69100% ev.
Carry Cost84100% ev.

Evidence strength: 93%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$61kTypical home
0.7%Property tax
$1,639Land / acre
28.5"Annual rain
46.6% of yrsSevere drought
62.7 / yr (+31.9)Mid-century 100°F days
29.3 daysMid-century dry spell
1.99" (+4.3%)Mid-century 1-day rain
1.34×Wildfire change factor
100%Forward climate coverage
$2,532Home insurance / yr
-0.6% / yrInsurance growth
1.69%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
5,361People within 30 min
473,519People within 2 hr
6,989Radius comparison (15 mi)
7.9People / sq mi
0.3%Federal land
98.7%Land at 15% slope or less
18.9%Soils rated "not limited" for septic (strict USDA rating)
103,180 acWorkable land screen
1.6%Wooded land
2.6 tonsBiomass / forest ac
63°FAvg temp

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Cities and towns in Tillman County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Town of Davidson · Frederick · Grandfield · Town of Hollister · Town of Loveland · Town of Manitou · Town of Tipton

Answers from the rulebook for Tillman County

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

Tillman County rules

  • Zoning districts · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Minimum dwelling size · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Minimum lot size · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Setbacks · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Lot coverage · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Building height · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Living in an RV · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Camping on your land · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Tiny homes · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Manufactured homes · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Accessory dwellings · by state lawNo county rule

    Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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.”
  • Driveway accessLimited

    Pipeline, phone, cable, or utility lines placed on, along, or across a Tillman County road or County right-of-way; this source does not establish a general driveway or driveway-culvert permit.

    • A permit must be obtained before placing a pipeline, phone, cable, or utility line on or along a County road or County right-of-way.
    • Applications for road crossings must be submitted to the County Clerk for approval by the Board of County Commissioners.
    • Telephone companies, public utility companies, and private land owner crossing permits are exempt from the $1,000 permit fee.
    • Applicants are financially responsible for road damage and must pay Tillman County within two weeks of the invoice date.
    • Underground crossings must be bored; no ditch or trench may be opened in a County road unless previously agreed to in writing by the Board of County Commissioners.
    • Temporary above-ground water lines parallel to the road must be within three feet of the right-of-way and incur additional fees if in place for more than thirty days.
    • Underground crossings must be at least three feet below the road centerline elevation or two feet below the ditch elevation, whichever is greater; high-pressure pipelines must be at least four feet below the ditch elevation.
    • High-pressure pipelines are pipelines designed to operate at pressures exceeding 125 PSIG.
    • The Board of County Commissioners may modify road permits to fit unique situations.

    crossing permit fee: 1000 USD per crossing permit (Telephone companies, public utility companies, and private land owner crossing permits are exempt.) · parallel water-line fee: 250 USD per mile per 30 days · parallel above-ground water-line setback: 3 feet from right-of-way · power-line parallel burial depth: 48 inches · telephone/cable parallel burial depth: 24 inches · other parallel-line burial depth: 30 inches · ordinary underground crossing depth: 3 feet below road centerline elevation or 2 feet below ditch elevation, whichever is greater · high-pressure pipeline crossing depth: 4 feet below ditch elevation (High-pressure means designed to operate at pressures exceeding 125 PSIG.)

    “Before placing pipeline, phone, cable, or utility line on or along any County road or County right-of-way, a permit must be obtained. All information requested in this form must be supplied.”
  • Permit feesVariable (with conditions)

    Tillman County permits for pipeline, phone, cable, utility-line, and parallel-water-line work on or along county roads or county rights-of-way.

    • Road-crossing applications require a $1,000 fee per crossing permit payable to Tillman County.
    • Parallel water lines cost $250 per mile for each 30 days the lines are in place.
    • Telephone companies, public utility companies, and private landowner crossing permits are exempt from the permit fee.
    • Temporary ground lines in place for more than 30 days require additional fees.
    • Applicants are financially responsible for roadway damage and repair costs.
    • The Board of County Commissioners may modify road permits to fit unique situations.

    road crossing permit fee: per 1000 USD per crossing permit (Telephone companies, public utility companies, and private landowner crossing permits are exempt.) · parallel water line fee: per 250 USD per mile per 30 days (Temporary ground lines in place for more than 30 days require additional fees.)

    “($1,000.00) per crossing permit [...] The fee for parallel water lines is Two Hundred Fifty Dollars ($250.00) per mile”
  • Permit processPublished (with conditions)

    Pipeline, phone, cable, and utility-line installations on or along Tillman County roads or county rights-of-way.

    • A permit must be obtained before placing the line.
    • All information requested on the application must be supplied.
    • Applications for road crossings must be submitted to the County Clerk for approval by the Board of County Commissioners.
    • The application requires an OKIE locate number.
    • Underground construction crossing county roadways must be bored unless the BOCC agrees in writing to a ditch or trench.
    • The applicant must comply with applicable laws and regulations, including the MUTCD.
    • The BOCC may modify road permits to fit unique situations.

    approval authority: Board of County Commissioners · application recipient: County Clerk · utility locate: OKIE Locate number

    “Before placing pipeline, phone, cable, or utility line on or along any County road or County right-of-way, a permit must be obtained. All information requested in this form must be supplied. [...] Applications for road crossings must be submitted to the County Clerk for approval by the Board of County Commissioners (BOCC) [...] Underground construction of pipelines, phone, cable, or utility lines that cross County roadways shall be bored. NO ditch or trench shall be opened by Applicant/Contractor in a County road, unless previously agreed to in writing by the BOCC; [...] Applicant/Contractor agrees to keep road open to traffic during installation unless otherwise agreed to or approved by the BOCC. Applicant/Contractor shall meet all applicable laws and regulations, including those in the Manual on Uniform Traffic Control Devices (MUTCD) appropriate for the applied for construction project;”
  • County-wide zoningAbsent

    Tillman County lists no planning or zoning department; zoning is handled only by its municipalities, not countywide.

    Tillman County Departments ↗Scouted from the county site, not yet independently re-checked

Oklahoma rules that apply here

  • Building permitLimited

    Use and Occupancy Classifications identified in the International Building Code, and specific situations identified in the International Fire Code, in geographical areas where no local building permit is required; this rule can apply to unincorporated Tillman County if no local authority requires a permit.

    • A permit must be obtained from the State Fire Marshal where no building permit is required by local authorities.
    • An owner or owner's authorized agent intending to construct, enlarge, alter, repair, move, demolish, or change occupancy, or to install, alter, remove, convert, or replace regulated electrical, gas, mechanical, or plumbing systems, must first apply for and obtain the required permit.
    • Remodels, alterations, and changes in use or occupancy must comply with the International Existing Building Code.
    • The source does not establish whether Tillman County has a separate current AHJ agreement; therefore county-specific applicability is not conclusively established.

    building permit fee: 0.2 USD per square foot (plus $4 OUBCC fee; $104 minimum)

    “In all geographical areas wherein no building permit is required by local authorities such permit shall be obtained from the State Fire Marshal's Office for all Use and Occupancy Classifications identified in the International Building Code®.”
    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.”
  • 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;”
    7 more reviewed findings on this topic
    • Conditional — An owner-builder acting as a general contractor for construction in Tillman County, subject to applicable local jurisdiction and trade-specific requirements.
      “General Contractors are not currently required to have a state license in Oklahoma for general contracting. However, trade licenses/registrations are required for performing, or offering to perform, licensed/registered trade work. Further, local jurisdictions should be contacted for any local requirements.”
    • Conditional — An owner-builder or other person constructing or altering a single-family dwelling, duplex residential dwelling, barn, shed, or attached carport in an unincorporated area of a county in Oklahoma, including unincorporated Tillman County, as to the State Fire Marshal permit.
      “nothing in this subsection shall be construed as requiring [...] a permit from the State Fire Marshal [...] in an unincorporated area of a county.”
    • Conditional — An actual owner of residential or farm property physically performing roofing services, or using family members or employees to perform those services, including construction, installation, renovation, repair, maintenance, alteration, waterproofing, or removal of materials or structures on the owner's property.
      “The Roofing Contractor Registration Act does not apply to: 1. An actual owner of residential or farm property who physically performs, or has family member, employee or employees who perform with or without remuneration, roofing services including, construction, installation, renovation, repair, maintenance, alteration, waterproofing, or removal of materials or structures on property owned by such person;”
    • 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.”
    • 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;”
    • 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.”
    • 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.”
  • Building code adoptedAdopted

    Commercial building construction throughout Oklahoma, subject to the OUBCC amendments and lawful requirements of other jurisdictions.

    • The adopted code is the 2024 International Building Code as amended and modified by OUBCC rules.
    • The 2024 IBC became effective September 14, 2026.
    • The statewide code is a minimum standard; other jurisdictions may amend or alter it only pursuant to Oklahoma law and OUBCC administrative rules.
    • The International Building Code 2021 Edition was expressly not adopted for any purpose.
    • None of the IBC 2024 appendices are included in the statewide minimum code; other jurisdictions may adopt appendices under 59 O.S. § 1000.29.
    • All IBC 2024 chapters and provisions, including exceptions, not specifically modified, deleted, moved, or removed by the rules are adopted without modification.
    • Chapter 34 is not adopted and is not part of the statewide minimum code.

    code edition: International Building Code 2024 (as amended and modified by OUBCC) · effective date: 2026-09-14

    “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.”
    6 more reviewed findings on this topic
    • Adopted (with conditions) — Building-code adoption applicable statewide in Oklahoma, including Tillman County, subject to the applicable authority-having-jurisdiction arrangement.
      “The 2018 codes, as amended will stay in effect until September 14, 2026.”
    • Adopted (with conditions) — The 2024 Oklahoma-adopted building and related construction codes, including Tillman County, beginning on the stated statewide effective date.
      “The OUBCC has adopted the 2024 editions [...] with amendments. These codes will go into effect on September 14, 2026.”
    • Adopted (with conditions) — Residential and commercial construction in Oklahoma, including unincorporated Tillman County.
      “The Oklahoma Uniform Building Code Commission (OUBCC) has adopted the 2024 editions of the International Building Code, International Fuel Gas Code, International Mechanical Code, International Plumbing Code and International Residential Code, with amendments effective September 14, 2026.”
    • Adopted (with conditions) — Residential and commercial construction in Tillman County, including unincorporated areas, subject to the Oklahoma Uniform Building Code Commission's statewide minimum codes and any higher standards lawfully adopted by the applicable local jurisdiction.
      “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.”
    • 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.”
    • 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.”
  • InspectionsLimited

    Projects permitted by the Oklahoma State Fire Marshal, including qualifying projects in areas without a local building-permit authority.

    • All permitted projects under the State Fire Marshal's authority must be inspected for compliance with the permit and applicable codes.
    • Inspection requests require at least seven days' advance notice.
    • A 50% inspection will not occur until all required permits are issued and onsite.
    • One 50% inspection and one 100% inspection are provided at no cost; failed 100% inspections incur a $100 re-inspection fee per site visit.
    • If project changes occur after permit issuance, an addendum must be submitted, reviewed, and issued before final inspection.

    inspection-request notice: >= 7 days · re-inspection fee after failed 100% final inspection: 100 USD per site visit

    “All permitted projects are required to be inspected for compliance with the permit and the applicable codes.”
  • Certificate of occupancyLimited

    Projects subject to Oklahoma State Fire Marshal permitting and inspection.

    • After a project passes the final inspection by an OKSFM Agent, the Agent recommends that a Certificate of Occupancy be granted.
    • The Certificate of Occupancy is emailed by the OKSFM office to the project's listed point of contact.
    • There is no separate application for a Certificate of Occupancy and no separate Certificate of Occupancy inspection.
    • The Certificate of Completion–Final Statement of Compliance Form is not a Certificate of Occupancy.
    • Failed 100% final inspections incur a $100 re-inspection fee per site visit.

    re-inspection fee after failed 100% final inspection: 100 USD per site visit

    “Once the project has passed the final inspection by an OKSFM Agent, the Agent will recommend a Certificate of Occupancy be granted. The Certificate of Occupancy will be emailed by the OKSFM office to the point of contact listed for the project or inspection.”
  • Who permits septicState

    Individual and small public on-site sewage treatment systems in Tillman County, including new installations and modifications.

    • Oklahoma DEQ administers the statewide on-site sewage treatment program.
    • Local DEQ environmental specialists review and issue authorizations based on property location.
    “ECLS administers Oklahoma’s on-site sewage treatment program.”
    One more reviewed finding on this topic
    • State — Statewide administration and regulatory oversight of individual and small public on-site sewage treatment systems in Oklahoma.
      “ECLS administers Oklahoma’s on-site sewage treatment program.”
  • 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.”
    One more reviewed finding on this topic
    • Required — Installing a new or modifying an existing on-site sewage treatment system in Tillman 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.”
  • Septic inspectionRequired

    All new installations and modifications to on-site sewage systems in Tillman County.

    • The system must be inspected and approved by DEQ, or installed, self-inspected, and approved by a certified installer, before it may be placed into operation.
    • Final inspections performed by a certified installer must be submitted to DEQ within 15 days of 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.”
  • Off-grid sanitationAllowed (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.

    • The Report for On-Site Sewage determines which system types are allowed for the property and states minimum dispersal requirements based on residence size or small-public-system daily flow.
    • A DEQ Authorization to Construct is required before installing or modifying the system.
    • All new installations or modifications require DEQ inspection and approval, or certified-installer self-inspection and approval, before operation.
    • Alternative systems require DEQ approval before installation.
    • The system design depends on lot size and shape, residence size, and soil-test results.
    “determines what types of on-site systems are allowed for the property.”
    One more reviewed finding on this topic
    • Limited — Individual and small public on-site sewage treatment systems serving property in Tillman County, including systems used as onsite sanitation.
      “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.”
  • Well permitRequired

    Non-domestic groundwater wells and uses in Tillman County, including public water supply, industrial, medical-marijuana grow, poultry, irrigation of more than 3 acres, oil and gas recovery, and other commercial uses.

    • A well drilling contractor must apply for authorization and receive OWRB approval before drilling.
    • An active groundwater use permit is required for the well location before authorization to drill will be issued.
    • Groundwater permit applications must be filed before taking and using groundwater and before drilling the groundwater well.
    • For a groundwater permit, 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.
    • Complete definitions and requirements are referenced in OAC 785:30-1-1 and OAC 785:35-13-1.

    irrigation area threshold: > 3 acres (Irrigation of less than 3 acres is identified as domestic and does not require an intent-to-drill authorization.) · 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 and receive approval from the OWRB prior to drilling. Authorization will not be issued for any well location that does not have an active groundwater use permit.”
    5 more reviewed findings on this topic
    • Limited — Groundwater well drilling in Tillman County, distinguished by domestic and non-domestic use.
      “Any well drilling contractor who intends to drill a groundwater well for non-domestic use must apply for authorization and receive approval from the OWRB prior to drilling.”
    • Not required — Domestic groundwater wells in Tillman County, including household purposes, livestock up to the land’s grazing capacity, and irrigation of less than 3 acres.
      “In Oklahoma, groundwater is considered private property that belongs to the overlying surface owner. A water permit is not required for domestic use of groundwater, but for all other uses, groundwater is subject to reasonable regulation by the OWRB.”
    • 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”
    • Required — 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.
      “Any well drilling contractor who intends to drill a groundwater well for non-domestic use must apply for authorization”
    • 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”
  • Agricultural exemptionAvailable (with conditions)

    Individuals or businesses engaged in farming or ranching for profit who purchase qualifying farm, ranch, or agricultural personal property, including in Tillman County.

    • A permit card must be obtained from the Oklahoma Tax Commission and used for tax-exempt purchases.
    • Applicants may apply through OkTAP or with assistance from the local county assessor’s office.
    • Applicants must submit documentation demonstrating regular engagement in farming or ranching for profit; listed documentation includes IRS Schedule F, Form 4835, Forms 1065, 1120, 1120S, or a three-year business plan if the listed documents are unavailable.
    • All applications are verified by the Oklahoma Tax Commission before the exemption is granted.
    • Once accepted, the exemption is valid for three years and must be renewed every three years.

    exemption validity period: 3 years (Renewal is required every three years.)

    “individuals or businesses engaged in farming or ranching for profit may qualify for an agricultural exemption.”
    4 more reviewed findings on this topic
  • Subdividing landRegulated (with conditions)

    Residential developments outside the corporate limits of a city or town, including applicable unincorporated portions of Tillman County.

    • A plat describing water-supply and sewage-treatment methods 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 include actual lot sizes and the location of public water-supply sources within 300 feet.
    • A plat containing any lot under 2 1/2 acres outside a city or town must bear DEQ approval before county-clerk filing.
    • DEQ approval is effective 30 days after filing unless specifically rejected earlier.
    • Creating a residential development without required approval or filing is a misdemeanor punishable by a fine of $500 to $5,000 per violation.

    lot-size threshold: < 2.5 acres (DEQ approval stamp required for county-clerk filing outside corporate limits) · public water-supply distance: <= 300 feet (The statute addresses public water-supply sources within this distance) · DEQ approval effectiveness: 30 days (Effective after filing unless rejected earlier) · violation fine: $500-$5,000 USD per violation (Misdemeanor violation)

    “Any person, corporation or other legal entity which creates or intends to create a residential development outside the corporate limits of a city or town shall file a plat describing the methods of sewage treatment for such residential development with the Department. Approval of the plat shall be obtained prior to recording the plat, offering a lot or lots for sale or beginning construction within such residential development.”
    2 more reviewed findings on this topic
    • Regulated (with conditions) — Subdivision plats affecting Tillman County, including property in unincorporated areas outside incorporated cities and towns.
      “Plats or subdivision plats of property in unincorporated areas with roads of public designation shall not be filed in the county clerk’s office until”
    • Regulated (with conditions) — Residential developments outside Oklahoma municipal corporate limits, including plat approval and recording requirements.
      “Approval of the plat shall be obtained prior to recording the plat”
  • 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.”
  • 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)”
    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.”
    • 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”
  • 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”
    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.”

Inside cities and towns in Tillman County

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

  • Local zoningPresent (with conditions)

    Planning and zoning regulation within the incorporated City of Frederick, Oklahoma.

    • The cited page identifies the existence of a Planning and Zoning chapter but does not by itself establish the rule for any particular parcel, zoning district, use, setback, or permit.
    • This claim is limited to the City of Frederick and does not apply to unincorporated Tillman County.
    “11- Parks, Recreation and Cultural Affairs 12- Planning and Zoning 13- Public Safety”
    2 more reviewed findings on this topic
    • Present (with conditions) — Land-use and zoning regulation within the municipal limits of the City of Frederick, Oklahoma, in Tillman County.
      “11- Parks, Recreation and Cultural Affairs 12- Planning and Zoning 13- Public Safety”
    • Present (with conditions) — Land-use regulation within the incorporated City of Frederick, Tillman County, Oklahoma.
      “05- Building Regulations and Codes 06- Court 07- Finance and Taxation 08- Health and Sanitation 09- Licensing and Business Regulations 10- Offenses and Crimes 11- Parks, Recreation and Cultural Affairs 12- Planning and Zoning 13- Public Safety”

Still unanswered

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

  • Mandatory utility hookup — Connection of residences or other properties in Tillman County to public water or sewer utilities.
  • Short-term rentals — Short-term rentals in Tillman County.

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 Tillman County, Oklahoma

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

Tillman County scores 43/100 on the Bolthole Index, a marginal county profile. Its strengths: manageable long-term carry cost and low administrative friction for a quiet rural property. Watch-outs: workable self-sufficiency basics (28.5″/yr rainfall) and elevated mid-century heat, water, rain, or wildfire exposure.

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

Tillman 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 (On-Site Sewage Programs). 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 Tillman County?

Living in an RV on your own land in Tillman County is allowed: Unincorporated Tillman County: no county rule sets this, because Tillman 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 tillman.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 Tillman County, Oklahoma?

Land in Tillman County runs about $1,639 per acre, based on the latest county data.

What is the water situation in Tillman County?

Tillman County gets about 28.5" of rain a year, with severe drought in roughly 46.6% of years.

How remote is Tillman County?

A representative private-land location has about 5,361 people within a 30-minute drive and 473,519 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.

How Tillman compares in Oklahoma

Compare side-by-side →See all 77 Oklahoma counties ranked →