Building permits, zoning and land rules in Marshall County, South Dakota
55Index Score / 100 #10 of 66 in South Dakota
Unincorporated Marshall County, South Dakota requires a county building permit, issued by the Zoning Administrator at Marshall County Planning & Zoning, for qualifying buildings, improvements and driveways1. County zoning applies only outside incorporated municipalities, so a parcel inside a city follows that city's rules2. Septic permits are not a county matter: South Dakota's Department of Agriculture and Natural Resources sets on-site wastewater requirements, with state plan review for any system other than a conventional one serving an individual residence34.
At a glance
Building permit
Required for qualifying construction, improvements and driveways15
Zoning
Yes in unincorporated areas; administered by Marshall County Planning & Zoning25
Septic
State-regulated; state review depends on the system type643
RV living
Not confirmed; ask Marshall County Planning & Zoning before relying on it5
Tiny home
No specific occupancy rule or minimum dwelling size confirmed5
Owner electrical work
Allowed for a qualifying owner-occupied residence or farmstead with a homeowner permit78
Minimum lot size
Varies by zoning district and use; the Residential District generally requires 15,000 square feet9
Septic soil suitability
Only 8.4% of soils lack severe limits for a conventional drain field10
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Do you need a building permit in Marshall County, South Dakota?
Yes. Unincorporated Marshall County requires a permit before a qualifying building, structure or driveway is erected, moved, enlarged or structurally altered15. The published triggers include improvements whose market value exceeds $3,000, any building or structure that needs additional land or area for its site, and sheds, decks or other structures of 80 square feet or larger1. A smaller shed may avoid the building permit, but it still must meet the applicable zoning-district setbacks1. The property owner is responsible for obtaining the permit before construction, even when the property is leased5. Failing to get a building permit before construction brings a $100 fine or 0.2 percent of construction cost, whichever is greater, on top of the normal fee11. Marshall County does not confirm a general owner-builder exemption from the county permit, so do not confuse South Dakota's limited homeowner electrical exemption with permission to skip the county building permit85.
Who issues building permits in Marshall County, and how do you reach the office?
Marshall County Planning & Zoning/E911 Addressing/Drainage is the permit office for county building and zoning matters5. The office is at 911 Vander Horck in Britton and can be reached at (605) 448-7540 or Erin.Collins-Miles@marshall.sdcounty.gov5. A building-permit application must identify the property and proposed work, state the intended use or occupancy, and include a site plan12. The site plan must show north, property lines, existing and proposed structures and driveways, dimensions, and exact setbacks, although the Zoning Administrator may waive submission items under the ordinance's stated exception12. Building-permit fees are $45 for construction costing up to $25,000, $75 for $25,001 to $100,000, $130 for $100,001 to $300,000, $180 for $300,001 to $600,000, and $0.20 per $1,000 above that, according to the schedule effective March 10, 202611. A building permit is valid for three years and must then be renewed11. Septic permits and state plan review are handled by DANR, not this office3.
Does Marshall County have zoning, and where does it apply?
Marshall County zoning applies in unincorporated areas; incorporated municipalities are outside the county ordinance, while specified areas near Britton have joint county-city administration2. The ordinance maps Agricultural Fringe Protection, Agricultural, Residential, Lake Front Residential, Commercial, Highway Commercial and General Industrial districts13. Minimum lots vary by district and use; in the Residential District, single- and multi-family dwellings generally need at least 15,000 square feet and 100 feet of lot width, with separate per-unit requirements for multi-family dwellings9. Setbacks vary by district: the Residential District requires a front yard of at least 30 feet, a rear yard of at least 7 feet and a side yard of at least 7 feet14. One district caps coverage by all buildings at 90% of the lot, but that limit is district-specific15. The county's agricultural exception is narrow: customary farm and animal fencing in the Agricultural District is exempt, while other fences and walls require a building permit16. Marshall County does not confirm a general minimum dwelling floor area, ordinary building-height limit, accessory-dwelling-unit rule or broad agricultural-building permit exemption; ask Planning & Zoning before relying on any of those uses5.
How do septic permits work in Marshall County?
On-site wastewater systems in Marshall County are regulated under South Dakota's statewide requirements, which are minimum standards that local governments may make more stringent63. A conventional individual on-site system may be designed and installed under the rules without submitting project plans to DANR, but other systems receiving human waste require state plan review and approval before construction4. DANR or its authorized representative may inspect an on-site system at any time, although the rule does not make inspection a universal prerequisite for every individual system17. Site feasibility deserves early attention: only 8.4% of Marshall County soils are rated without severe limitations for a conventional drain field, so make the soil evaluation a purchase contingency rather than assuming a standard field will work10. Contact DANR for the review and inspection path that applies to the proposed design18.
Can you live in an RV or tiny home on your land in Marshall County?
We could not confirm a Marshall County rule that generally allows or prohibits long-term RV occupancy, temporary camping on private land, or tiny-home occupancy. County zoning applies in unincorporated areas, so the absence of a specific answer is not permission to move in; ask Planning & Zoning about the parcel's zoning district, dwelling classification, setbacks, utility requirements and whether occupancy during construction is allowed25. South Dakota separately allows certain unconventional sanitation systems when water or electricity is unavailable, but chemical toilets, incinerator toilets and composting units are treated as experimental systems that need state approval before installation; that sanitation rule does not itself authorize residential RV or tiny-home use19. No county minimum dwelling floor area was confirmed, so ask the same office for a written answer before ordering a tiny home5.
Building a home in Marshall County: the steps, in order
Ask Marshall County Planning & Zoning to confirm that the parcel is in the county's jurisdiction, identify its zoning district and lot standards, and determine whether the proposed home and any temporary RV use are allowed21395.
Lay out the house and driveway, then prepare the permit application and site plan showing property lines, structures, dimensions and exact setbacks12.
Apply at the Zoning Administrator's office before construction begins and confirm the current fee from the construction-cost schedule12115.
Coordinate a qualifying county-road or right-of-way driveway with the county; access to a state highway requires South Dakota Department of Transportation permission before construction2021.
Evaluate the septic site, determine whether DANR plan review is required and ask what inspection will apply41710.
Arrange state electrical and plumbing approvals: qualifying homeowner electrical work still needs a permit and final inspection, while plumbing outside cities with their own inspection systems requires a state inspection certificate822.
What should you check before buying land in Marshall County?
Start with jurisdiction, zoning, access, septic feasibility and flood exposure. Marshall County Planning & Zoning can identify the zoning district and county permit path for unincorporated land, while the road authority depends on whether access meets a county, township or state road220. Only 8.4% of county soils lack severe limits for a conventional drain field, despite 93.2% of the land having a slope of 15% or less, so gentle ground does not guarantee an easy septic site1023. A development permit is required in a floodplain where the applicable South Dakota community participates in the National Flood Insurance Program, but participation and administration differ between incorporated and unincorporated areas; ask Planning & Zoning about the parcel rather than assuming the county process245. For water, determine whether the proposed use needs a state water-right permit before drilling a well25. The county's effective property-tax rate is about 0.9%, with a median annual bill of about $1,3362627.
Watch-outs
Marshall County's permit triggers reach certain driveways as well as buildings, and the correct road-approach authority changes among county, township and state roads20.
Only 8.4% of Marshall County soils are rated without severe limitations for a conventional septic drain field, so confirm a workable design before closing on land10.
South Dakota's homeowner electrical exemption is only an exemption from electrical licensure; a homeowner permit and final inspection still apply, and it does not waive the Marshall County building permit81.
Long-term RV occupancy, temporary camping, tiny-home occupancy and a minimum dwelling size remain unconfirmed; request parcel-specific answers from Marshall County Planning & Zoning5.
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.
Marshall County highlighted among the South Dakota counties · colored by Index score
How Marshall County scores
Seclusion85100% ev.
Self-Sufficiency26100% ev.
Admin Boringness49100% ev.
Durability43100% ev.
Property Autonomy67100% ev.
Carry Cost79100% ev.
Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
$242kTypical home
0.9%Property tax
$3,787Land / acre
24.2"Annual rain
3.1% of yrsSevere drought
5.3 / yr (+4.6)Mid-century 100°F days
19.6 daysMid-century dry spell
1.46" (+7.2%)Mid-century 1-day rain
1.64×Wildfire change factor
100%Forward climate coverage
$1,671Home insurance / yr
6.2% / yrInsurance growth
1.58%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
2,204People within 30 min
180,442People within 2 hr
3,434Radius comparison (15 mi)
5.2People / sq mi
25.4%Federal land
93.2%Land at 15% slope or less
8.4%Soils rated "not limited" for septic (strict USDA rating)
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Cities and towns in Marshall County
Inside a city, town or township here, that government usually sets zoning and may issue its own building permits; the county’s rules above cover land outside them.
Not yet researched: Buffalo Township · Dayton Township · Dumarce Township · Town of Eden · Eden Township · Fort Township · Hamilton Township · Hickman Township · La Belle Township · Lake Township · Town of Lake City · Town of Langford · Lowell Township · McKinley Township · Miller Township · Newark Township · Newport Township · Nordland Township · Pleasant Valley Township · Red Iron Lake Township · Sisseton Township · Stena Township · Veblen · Veblen Township · Victor Township · Waverly Township · Weston Township · White Township · Wismer Township
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
Building permitRequired
Buildings, structures, driveways, structural alterations, qualifying improvements, qualifying sheds or decks, and changes of use or occupancy under Marshall County zoning rules.
A permit is required before erection, partial erection, movement, addition, or structural alteration.
Permits are required for improvements exceeding $3,000 in market value.
Permits are required for structures or buildings of any cost when additional land or area is required for siting.
Permits are required for sheds or structures, including decks, of 80 square feet or larger; structures under 80 square feet do not require a building permit but must meet applicable district setbacks.
Permits are required for concrete, asphalt, paved, or graveled driveways abutting a county road or located in a county right-of-way.
Permits are required for a change of use or occupancy.
A permit may require administrative review, conditional use approval, or a variance from the Board of Adjustment.
improvement market value threshold: > 3000 USD · shed or structure area threshold: >= 80 sq ft (Structures under 80 square feet do not require a building permit but must meet applicable district setback requirements.)
“No building, structure or driveway shall be erected”
County-wide zoningPresent (with conditions)
Marshall County zoning in unincorporated areas, with joint administration in specified areas outside Britton's corporate limits.
The ordinance applies within unincorporated areas of Marshall County.
The ordinance is acted on jointly by Marshall County and Britton City in specified Miller Township and Pleasant Valley Township sections.
The ordinance states that it is effective June 30, 2026.
“the provisions of this Ordinance shall apply within the unincorporated areas of Marshall County, South Dakota, as established on the map entitled “The Official Zoning Map of Marshall County, South Dakota.””
Zoning districtsPublished
Published county zoning districts in Marshall County.
The ordinance identifies seven district types: AGFP, AG, R-1, R-3, C, HC, and I.
“Agricultural Fringe Protection District (AGFP) Agricultural District (AG) Residential District (R-1) Lake Front Residential District (R-3) Commercial District (C) Highway Commercial District (HC) General Industrial District (I)”
One more reviewed finding on this topic
Published (with conditions) — Official zoning districts shown on the Marshall County zoning map and regulated by the county ordinance.
“created seven (7) types of districts by which the jurisdictional area defined in TITLE 3 shall be divided: Agricultural Fringe Protection District (AGFP) Agricultural District (AG) Residential District (R-1) Lake Front Residential District (R-3) Commercial District (C) Highway Commercial District (HC) General Industrial District (I)”
Minimum lot sizeDistrict specific (with conditions)
Minimum lot sizes in Marshall County zoning districts.
Requirements vary by district and use.
Examples include 15,000 square feet for single- and multi-family dwellings in the Residential District, with separate per-unit and width requirements.
Agricultural, lake-front residential, commercial, industrial, and mobile-home districts have separate standards.
Residential District minimum lot area: >= 15000 sq ft (Multi-family dwellings have separate per-unit requirements.) · Residential District minimum lot width: >= 100 feet
“The minimum lot area shall be fifteen thousand (15,000) square feet for single and multi-family dwellings. The minimum lot area per dwelling unit in a multi-family dwelling shall be three thousand five hundred (3,500) square feet for the first two units and one thousand five hundred (1,500) square feet for each additional dwelling unit. The minimum lot width shall be one hundred (100) feet.”
One more reviewed finding on this topic
Specified — County zoning districts including Agricultural, Residential, Lake Front Residential, Commercial, and Industrial districts.
“The minimum lot area shall be fifteen thousand (15,000) square feet for single and multi-family dwellings.”
SetbacksSpecified
Setbacks in Marshall County zoning districts.
Setbacks vary by district and use.
Lake Front Residential standards include a 50-foot normal-high-water-mark setback, 60 feet from federal and state highways, 30 feet from other roads, and 7-foot side yards.
Residential standards include 30-foot front, 7-foot rear, and district-specific side-yard requirements in the cited section.
lake-front normal high-water mark setback: >= 50 ft (Alternative sight-line calculation may apply when adjoining principal structures are closer) · lake-front federal/state highway setback: >= 60 ft · lake-front other-road setback: >= 30 ft
“There shall be a front yard setback of not less than a depth of thirty (30) feet. There shall be a rear yard setback of not less than a depth of seven (7) feet. Each side yard setback shall not be less than seven (7) feet.”
Lot coverageSpecified
Building lot coverage in the Marshall County district containing the cited standard.
The cited maximum applies to all buildings in that district.
Other districts may have different or unstated coverage standards.
maximum lot coverage: <= 90 percent of total lot area
“The maximum lot coverage for all buildings shall not be more than ninety percent (90%) of the total lot area.”
Manufactured homesLimited
Manufactured-home occupancy and mobile-home parks governed by the Marshall County Zoning Ordinance.
The ordinance defines a manufactured home as a transportable structure built on a permanent chassis and distinguishes it from a recreational vehicle.
Mobile-home-park requirements include a 3,500-square-foot minimum lot area per individual mobile home and maximum density of eight units per gross acre.
minimum lot area per individual mobile home: 3500 sq ft · mobile home park density: <= 8 units per gross acre
“Mobile homes under the conditions prescribed in Appendix A of this Ordinance.”
Agricultural exemptionConditional
Customary farm and animal fencing in the Agricultural District.
The exemption applies to customary farm and animal fencing in the Agricultural District.
Other fences and walls require a building permit.
“Except for customary farm and animal fencing in the Agricultural District, all fences, and walls shall require a building permit.”
One more reviewed finding on this topic
Conditional — Customary farm and animal fencing in the Marshall County Agricultural District.
“Except for customary farm and animal fencing in the Agricultural District, all fences, and walls shall require a building permit.”
Subdividing landRegulated (with conditions)
Additions to or subdivisions within Marshall County and the prescribed extraterritorial jurisdiction.
No subdivision plat may be filed or recorded until submitted to the Planning and Zoning Board for review and approved by the Marshall County Commissioners.
The subdivider must discuss the proposal with the Planning and Zoning Administrator before subdivision.
A plat inspection fee is required under the approved fee schedule.
“No plat of a subdivision of land shall be filed or recorded until it has been submitted to the Planning and Zoning Board for their review and then approved by the Marshall County Commissioners.”
One more reviewed finding on this topic
Regulated (with conditions) — Additions, subdivisions, minor plats, and replats within Marshall County and the prescribed extraterritorial jurisdiction.
“approved by the Marshall County Commissioners”
Driveway accessLimited
Concrete, asphalt, paved, or graveled driveways abutting county roads or located in county rights-of-way.
The requirement applies to driveways erected, partially erected, moved, added to, or structurally altered.
The county page does not establish the same permit requirement for every private driveway.
“For any concrete asphalt, paved or graveled driveway erected, partially erected, moved, added to, or structurally altered that abuts any county road or located in a county right-of-way.”
2 more reviewed findings on this topic
Required — Concrete, asphalt, paved, or graveled driveways abutting county roads or located in county rights-of-way.
“For any concrete, asphalt, paved or graveled driveway erected, partially erected, moved, added to, or structurally altered that abuts any county road or located in a county right-of-way.”
Required — Concrete, asphalt, paved, or graveled driveways abutting a county road or located in a county right-of-way.
“For any concrete asphalt, paved or graveled driveway erected, partially erected, moved, added to, or structurally altered that abuts any county road or located in a county right-of-way.”
Permit feesPublished (with conditions)
Marshall County planning, zoning, building, floodplain, subdivision, variance, conditional-use, and rezone fees.
Building permit fees vary by construction cost.
The published schedule is effective March 10, 2026, with a prior effective-date notation of December 26, 2023.
Failure to obtain a building permit before construction results in a $100 fine or 0.2 percent of total construction cost, whichever is greater, plus the normal permit fee.
A permit is valid for three years and must then be renewed.
Late fees are $50, $100, and $150 for the first, second, and third notices; invoices are due within 15 days.
floodplain permit fee: 25 USD · plat inspection fee: 100 USD (Plus $20 per additional lot) · building permit fee for construction cost $0-$25,000: 45 USD · building permit fee for construction cost $25,001-$100,000: 75 USD · building permit fee for construction cost $100,001-$300,000: 130 USD · building permit fee for construction cost $300,001-$600,000: 180 USD · building permit fee over $600,001: per 0.2 USD per $1000 of cost
“Construction Costs (to include all labor, materials, concrete, etc.) Fee(s) $0 - $25,000 $45 $25,001 - $100,000 $75 $100,001 - $300,000 $130 $300,001 - $600,000 $180 Over $600,001 $.20 / $1000 of cost”
2 more reviewed findings on this topic
Published (with conditions) — Marshall County planning and zoning permits, including building permit applications.
Variable (with conditions) — Marshall County building permit fees.
“Initial fees shall be based on the estimated cost of the construction, alteration or repairs.”
Permit processPublished (with conditions)
Marshall County building-permit application, review, issuance, and expiration process.
Applications must identify the land and work, state proposed use or occupancy, and include a site plan.
The site plan must show property lines, existing and proposed structures and driveways, and exact setbacks from property lines, rights-of-way, and normal high-water marks when applicable.
The Zoning Administrator may waive the site plan when reviewing plans is unnecessary for compliance.
A permit expires if the work is not completed within three years of issuance.
permit completion period: 3 years (Permit expires and is canceled if work is not completed)
“The submitted site plan must be clear and legible and must include the following: An arrow showing North; property lines and actual lot dimensions; the exact sizes and location on the lot of buildings, structures and driveways already existing; the location and dimensions of the proposed building, structure, driveway or alteration; and exact setbacks measured in feet from all property lines, right-of-ways, and normal high-water marks (if applicable).”
2 more reviewed findings on this topic
Published (with conditions) — Marshall County building-permit application process.
“apply at the office of the Zoning Administrator”
Partial — Marshall County building and zoning permit process.
“No building permit shall be issued by the Zoning Administrator except in conformity with the provisions of this Article, unless he/she received a written order from the Board of Adjustment in the form of an administrative review, conditional use, or variance as provided by this Article.”
An individual owner personally installing electrical wiring and fixtures in a residence or farmstead owned and resided in by that individual.
The exemption is from electrical licensure requirements, not from permitting or inspection.
An approved homeowner permit must be obtained before electrical work begins.
The exemption does not apply to commercial or rental property.
Mobile-home and modular-home installations are allowed only when the unit is on an owner-occupied lot at the time of installation; otherwise a licensed South Dakota electrical contractor is required.
A final inspection is required before occupancy.
“an "owner's exemption" as an exemption from licensure requirements”
Building code adoptedPartial
South Dakota building-code adoption framework for local governments, including residential structures and county or municipal construction standards.
For residential structures, the statute authorizes the governing body of a municipality to adopt the 2024 International Residential Code; the quoted residential authorization does not name counties.
A residential-structure rule may not require installation of a sprinkler system and may not impose requirements more stringent than the 2024 International Residential Code.
A residential structure means a detached one-family or two-family dwelling, a townhouse not more than three stories with a separate means of egress, and related accessory structures.
For buildings other than residential structures, a local-unit ordinance must comply with the 2024 International Building Code, subject to statutory exclusions and permitted amendments.
The nonresidential rule does not apply to HUD-compliant mobile or manufactured homes, may not require fire sprinklers in a single-family dwelling, and does not apply to qualifying specialty resorts or vacation-home establishments constructed to Group R-3 requirements.
Where a local unit has not adopted a qualifying ordinance, the default 2024 International Building Code design standard applies to covered construction commenced after July 1, 2026, but the default does not apply to residential structures, mobile or manufactured homes, farmsteads, or accessory structures.
residential model code: 2024 International Residential Code (Municipal governing body authorization; no sprinkler requirement; no requirements more stringent than the code) · nonresidential model code: 2024 International Building Code (Statutory exclusions apply) · default nonresidential design-standard commencement: > 2026-07-01 (The default does not apply to residential structures, mobile or manufactured homes, farmsteads, or accessory structures)
“The governing body of a municipality may enact requirements for construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal, and demolition of a residential structure by adopting the 2024 edition of the International Residential Code, as published by the International Code Council, Incorporated.”
2 more reviewed findings on this topic
Partial — Statewide South Dakota building standards for construction and related work within a local unit of government that has not adopted an ordinance prescribing standards under SDCL § 11-10-5.
“The design standard [...] of any building commenced after July 1, 2026 [...] must be based on the 2024 edition of the International Building Code”
Partial — South Dakota building-code standards for construction within local units of government, including unincorporated county areas.
“The design standard for construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal, and demolition of any building commenced after July 1, 2026, within the boundaries of any local unit of government that has not adopted an ordinance prescribing the standards pursuant to § 11-10-5, must be based on the 2024 edition of the International Building Code as published by the International Code Council, Incorporated. [...] The provisions of this section do not apply to any residential structure as defined in § 11-10-12, mobile or manufactured home, or farmstead and any accessory structure or building thereto.”
InspectionsRequired
Plumbing installations in South Dakota outside cities that administer their own plumbing inspection requirements.
The exception is for cities with their own inspection requirements.
Inspection requests generally require at least 72 hours advance notice, excluding weekends and holidays.
Inspections occur after a plumbing installation certificate is secured.
“You must have a plumbing inspection certificate for all plumbing installations.”
One more reviewed finding on this topic
Limited — Electrical wiring installations subject to South Dakota Electrical Commission inspection.
“A final inspection is required for all jobs prior to occupancy.”
Who permits septicMixed (with conditions)
On-site wastewater systems in Marshall County under South Dakota minimum requirements, subject to potentially more stringent local requirements.
South Dakota regulation is under SDCL Chapter 34A-2 and ARSD Articles 74:53:01.
Local governments may impose more stringent requirements.
Conventional onsite systems serving an individual residence are excepted from the DANR prior-contact statement.
“These regulations are the state’s minimum requirements and standards”
One more reviewed finding on this topic
State — Individual and small on-site wastewater systems statewide in South Dakota.
“The authority for regulating on-site wastewater systems is found in SDCL Chapter 34A-2.”
Septic permitLimited
New or modified onsite wastewater systems in Marshall County subject to South Dakota DANR review and state requirements.
DANR should be contacted before installation of any new onsite system except a conventional onsite system serving an individual residence.
Plans and specifications must be submitted for installations receiving human excreta other than a conventional individual onsite system.
For works of sanitary significance, plans and specifications must be submitted at least 30 days before planned construction.
Individual and small wastewater-system installers must be certified by the South Dakota Plumbing Commission.
advance submission period for works of sanitary significance: >= 30 days
“Plans and specifications must be submitted to DANR”
One more reviewed finding on this topic
Limited — New or modified on-site wastewater systems in Marshall County.
“You should contact DANR prior to the installation of any new on-site system except those conventional on-site systems serving an individual residence. DANR will review information about the on-site system to make sure it complies with the regulations.”
Septic inspectionLimited
State inspection authority over onsite wastewater systems in Marshall County.
Inspection may occur at any time and is not stated as a universal inspection prerequisite for every individual system.
“Inspection of the installation, equipment, and operation of an on-site wastewater system may be made at any time by the secretary or the secretary's authorized representative.”
Off-grid sanitationAllowed (with conditions)
Unconventional off-grid sanitation systems where a water or electrical system is unavailable statewide.
Vault privies, chemical toilets, incinerator toilets, or composting units must be used when a water or electrical system is unavailable.
Except for vault privies, all unconventional systems are experimental systems and require plans and specifications submitted to the secretary for approval before installation.
“all unconventional systems are considered experimental systems”
Well permitLimited
Water-well drilling and proposed water uses statewide in South Dakota.
A water-right permit is required only for proposed water uses that fall within the permitting requirements; the official page directs applicants to the Using Water in SD page to determine whether a permit is needed.
When a water-right permit is required, state law requires approval before well drilling.
The chief engineer may permit construction of a test well before obtaining the water-right permit; the test well may serve as the production well if the application is approved.
A water-right permit, when required and approved, provides five years to construct the water-use system and an additional four years to place all water to beneficial use.
A well driller's license is required before drilling any well or contracting to drill a well.
construction period after water-right permit approval: 5 years · period to place water to beneficial use: 4 years
“If a water right permit is needed, state law requires the permit to be approved prior to doing any well drilling.”
Building in a floodplainRequired
Development in floodplains within South Dakota communities participating in the National Flood Insurance Program, including incorporated and unincorporated areas administered separately by local governments.
Participating communities must adopt and enforce a flood-damage-prevention ordinance.
Permits are required for all types of development in the floodplain.
New or substantially improved homes and manufactured homes must be elevated above the Base Flood Elevation.
Non-residential buildings must be elevated or flood-proofed.
Elevation Certificates are required to document compliance.
NFIP participation and eligibility are established separately for incorporated and unincorporated areas; the source does not establish a single uniform permit process for every South Dakota location.
“Require permits for all types of development in the floodplain.”
county zoning authorityGeneral
South Dakota county boards' authority to adopt zoning ordinances, including for unincorporated county land.
The authority is granted for promoting the health, safety, or general welfare of the county.
The statute authorizes regulation of building and land-use characteristics including height, number of stories, building and structure size, lot coverage, yards, courts, open spaces, population density, and locations and uses of buildings, structures, and land.
The authorized purposes expressly include trade, industry, residence, flood plain, and other purposes.
This claim identifies statewide enabling authority; whether a particular county has adopted an ordinance is a separate local question.
“For the purpose of promoting health, safety, or the general welfare of the county the board may adopt a zoning ordinance to regulate and restrict the height, number of stories, and size of buildings and other structures, the percentage of lot that may be occupied, the size of the yards, courts, and other open spaces, the density of population, and the location and use of buildings, structures, and land for trade, industry, residence, flood plain, or other purposes.”
county building authorityLimited
County authority to prescribe building standards and issue building permits for construction in South Dakota, including unincorporated areas.
Section 11-10-5 expressly addresses ordinances adopted by any local unit of government, and expressly provides for amendments to a county ordinance filed with the county auditor.
That provision concerns buildings other than residential structures as defined in § 11-10-12.
Section 11-10-12 expressly authorizes a municipality to enact residential-structure requirements using the 2024 International Residential Code, rather than expressly extending that authorization to counties.
A county, municipality, or township may not require permits for specified repairs or substantially similar replacements to existing exterior parts of a detached single-family owner-occupied residential structure, except designated historical property repairs authorized under chapter 1-19B.
Construction under the default § 11-10-6 standard is subject to the residential, manufactured-home, farmstead, accessory-structure, and specialty-resort exclusions stated there.
nonresidential code: 2024 International Building Code (County ordinances may amend, modify, or delete portions before enactment; HUD-compliant mobile or manufactured homes and specified Group R-3 specialty resorts or vacation home establishments are excluded; no single-family dwelling fire sprinkler may be required.) · permit exemption effective date: 2026 (Applies to listed repairs and substantially similar replacements of existing exterior parts.)
“Additional deletions, modifications, and amendments to the county ordinance may be made by the governing body and are effective upon their adoption and filing with the county auditor. [...] Notwithstanding any authority granted to a county, municipality, or township to prescribe building codes or standards or to issue building permits, a county, municipality, or township may not require a building permit for the repair or substantially similar replacement of any of the following existing exterior parts of a detached single-family owner-occupied residential structure:”
Set by your township or city, not the county
In South Dakota, zoning is adopted by each township or city, so Marshall County has no county-wide answer on these. Find your township or city in the list of places on this page, or call its clerk or zoning administrator.
Minimum dwelling size
Building height
Living in an RV
Camping on your land
Tiny homes
Accessory dwellings
Short-term rentals
Still unanswered
We looked and could not find an official answer yet. Silence is not permission — ask the county directly.
Certificate of occupancy — Certificates of occupancy in Marshall County.
Mandatory utility hookup — Water and sewer utility-connection requirements in Marshall 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 Marshall County, South Dakota
Is Marshall County a good place to live off-grid or homestead?
Marshall County scores 55/100 on the Bolthole Index, a solid county profile. Its strengths: deep seclusion — about 2,204 people within a 30-minute drive and manageable long-term carry cost. Watch-outs: thin water margin (24.2″/yr rainfall).
Do you need a building permit in Marshall County, South Dakota?
Marshall County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by South Dakota Department of Agriculture and Natural Resources (DANR). 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.
How much does land cost in Marshall County, South Dakota?
Land in Marshall County runs about $3,787 per acre, based on the latest county data.
What is the water situation in Marshall County?
Marshall County gets about 24.2" of rain a year, with severe drought in roughly 3.1% of years.
How remote is Marshall County?
A representative private-land location has about 2,204 people within a 30-minute drive and 180,442 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.
