Bolthole Index

Grant County, South Dakota

Building permits, zoning and land rules in Grant County, South Dakota

53Index Score / 100
#11 of 66 in South Dakota

Unincorporated Grant County, South Dakota requires a county building permit before excavation, construction, moving or alteration of a building begins.1 The Grant County Planning & Zoning Office issues building permits and administers zoning, subdivision and drainage rules for unincorporated land.2 Septic systems follow South Dakota's on-site wastewater rules; the state Department of Agriculture and Natural Resources (DANR) asks to be contacted before any new system except a conventional one serving a single residence.3

At a glance

Building permit
Required before covered building work begins in unincorporated Grant County1
Zoning
County zoning applies in unincorporated areas4
Septic
South Dakota administers minimum on-site wastewater requirements; ask the county about any stricter local requirements5
Owner electrical work
A qualifying resident owner may do the work with an approved homeowner permit and required inspections6
Manufactured homes
County size, foundation, anchoring, design and age conditions vary by classification7
Private well
A state water-right permit may be required before drilling, depending on the proposed water use8
Road access
Driveway spacing applies, and access from a state highway requires state approval before a county building or use permit9

Who to call

Planning & zoning

Grant County Planning & Zoning Office

Building permits, zoning, plats, site plans, drainage applications, 911 addresses and floodplain administration

(605) 432-7580

Steve.Berkner@grantcountysd.us

210 E 5th Ave, Milbank, SD 57252

Septic permits

South Dakota DANR On-Site Wastewater Systems

State on-site wastewater system requirements and plan-review questions

(605) 773-4647

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 Grant County, South Dakota?

Yes. In unincorporated Grant County, excavation, construction, moving or alteration of a building or accessory building cannot begin until the County Zoning Officer issues a building permit.10 The application must show dimensions, building uses, and existing or proposed water and sewer facilities, and the issued permit must be visible from the public right-of-way.10 Work must begin within 180 days and be substantially completed within one year or the permit expires.10

Grant County does not apply one general construction code to every project; specific code requirements cover certain regulated uses and structures.11 State electrical and plumbing requirements can apply separately from the county land-use permit.1213 The County Zoning Officer may inspect buildings or premises as needed to enforce the zoning ordinance, but the ordinance does not establish a routine inspection schedule for every permit.14 A general certificate-of-occupancy rule could not be confirmed, so ask Planning & Zoning what closeout documents apply.2

South Dakota's default 2024 International Building Code standard for construction begun after July 1, 2026 does not apply to residential structures, manufactured homes or farmsteads, so the county permit and the ordinance remain the main rules for a rural home.1516

Who issues building permits in Grant County, South Dakota?

The Grant County Planning & Zoning Office issues building permits and administers the comprehensive land-use plan, subdivision ordinance, zoning ordinance and drainage ordinance.2 The office also reviews plats and site plans, assigns addresses for new construction and serves as the Floodplain Administrator.2

Building-permit applications are available for pickup and are approved by the Planning & Zoning Officer after review.17 Published structure-permit fees vary with construction cost, and the county also lists separate fees for matters such as drainage permits, plat inspections, variances and conditional uses.18 Contact the office at (605) 432-7580 or Steve.Berkner@grantcountysd.us, or visit 210 E 5th Ave, Milbank, SD 57252.2 Incorporated municipalities may administer their own land-use rules, so a parcel inside a city should start with that municipality.4

Does Grant County, South Dakota have zoning?

Yes. Grant County's zoning ordinance applies to unincorporated land and includes agricultural, commercial or industrial, natural-resources, planned-development and aquifer-protection districts.419 Rules depend on the zoning district and proposed use, so confirm the parcel classification before design begins.20

The ordinance contains district- and use-specific setbacks rather than one setback for every parcel.21 In the Agricultural District, main buildings are limited to 35 feet or two and one-half stories, with exceptions that include agricultural buildings and structures not used for human occupancy.22 Customary farm and animal fencing in that district has a specific exemption, but the cited rule does not create a general agricultural exemption from building or zoning requirements.23 Special minimum lot sizes for uses such as certain animal-feeding operations and private campgrounds are not a universal residential minimum.24

In the Agricultural District, residential lots must be at least 2 acres, not counting road right-of-way.25 The Agricultural District requires a front yard of at least 100 feet, a side yard of at least 50 feet, and a rear yard of at least 50 feet or 20 percent of lot depth.26 Dividing land into parcels also triggers platting: South Dakota requires a recorded plat before a transfer of the parcels, and the county subdivision ordinance bars recording a plat or selling lots until approval.2728

How do septic systems work in Grant County, South Dakota?

South Dakota administers minimum requirements for individual and small on-site wastewater systems, and local governments may impose stricter standards.5 The state septic program says South Dakota has installation requirements and a certification program for septic-system installers.29 South Dakota's guidance is to contact DANR before installing any new on-site system except a conventional system serving an individual residence.3 Contact the state on-site wastewater program at (605) 773-4647 for system-review questions, then ask Grant County Planning & Zoning whether a local review applies to the parcel.292

A universal septic-permit or inspection path for every Grant County system could not be confirmed. The site still needs careful evaluation: only about 6.3% of county soils are rated without severe limitations for a conventional septic drain field.30 That soil statistic does not decide whether an individual site will pass, but it makes early soil and system planning prudent.30 Where water or electrical service is unavailable, state rules allow specified unconventional sanitation systems under conditions, and experimental systems require state approval before installation.31

Can you live in an RV or tiny home in Grant County, South Dakota?

Grant County's general rule for living long-term in an RV on private land could not be confirmed, and the private-campground provisions do not answer that question for an individual parcel. Private campgrounds must provide electric service, potable water and sewage-disposal facilities meeting applicable rules, but that requirement does not establish a countywide utility-connection rule for ordinary homes.32 Ask Planning & Zoning whether an RV stay is an allowed principal, accessory or temporary use in the parcel's district.2

A rule expressly addressing tiny-home occupancy also could not be confirmed. Covered construction, moving or alteration still requires a county permit.10 Manufactured homes have separate size, placement and design conditions; those thresholds are not a general minimum for every site-built dwelling.7 The ordinance's accessory-housing provision is limited to housing associated with a Class A concentrated animal feeding operation and requires Board of Adjustment approval, so it is not a general accessory-dwelling allowance for residential parcels.33

What are the steps to build a home in Grant County, South Dakota?

  1. Confirm that the parcel is outside an incorporated municipality and ask Grant County Planning & Zoning for its district, allowed use, setbacks and site-plan requirements.42
  2. Verify legal access and driveway placement; county driveways must be 100 feet apart on local roads, 300 feet on collector roads and 500 feet on arterial roads, and a state-highway connection needs South Dakota Department of Transportation approval before the county issues a building or use permit.9
  3. Plan water and wastewater early because a water-right permit may be required before well drilling, while septic work is subject to state minimum requirements and possible stricter local standards.85
  4. Submit the county building-permit application and wait for approval before excavation or covered building work begins.134
  5. Arrange state electrical and plumbing permits or inspections that apply; qualifying owner-occupants may perform their own electrical work only under the homeowner-permit conditions.35136
  6. Ask Planning & Zoning which county inspections and occupancy closeout apply because a general county process could not be confirmed.2

What should you check before buying land in Grant County, South Dakota?

Start with the zoning map, allowed use, setbacks and the ability to obtain a driveway that meets county spacing rules.19219 If the parcel touches a state highway, state access approval is required before a plat is filed or a county building or use permit is issued.9

Treat wastewater feasibility as an early purchase contingency because about 6.3% of county soils are rated without severe limitations for a conventional drain field.30 A development permit is required before construction or development begins in an area of special flood hazard, and the Planning & Zoning Office administers that process.362 Confirm the proposed water use before drilling because a water-right permit may be required and, when required, must be approved before drilling.37 For carrying costs, the county's effective property-tax rate is about 0.9%, with a median annual property-tax bill of $1,527.3839

Watch-outs

  • Do not start excavation or covered building work before the county permit is issued; the permit must be displayed where it can be seen from a public right-of-way.1
  • A qualifying electrical owner exemption waives licensure, not the homeowner permit or inspection requirements.6
  • Grant County's general rules for residential RV use, tiny-home occupancy and routine inspections for every building permit could not be confirmed; ask Planning & Zoning before relying on any of those uses or processes.2

Sources

  1. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  2. Grant County Planning & Zoning Office (grantcounty.sd.gov)
  3. One-Stop Permitting and Regulation Guide (2025 Edition), quoted and re-checked
  4. Planning & Zoning - Grant County, quoted and re-checked
  5. On-Site Wastewater Systems in South Dakota (South Dakota statewide rule), quoted and re-checked
  6. South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
  7. Grant County Compiled Zoning Ordinance, quoted and re-checked
  8. South Dakota Water Rights - Drilling a Well, quoted and re-checked
  9. Grant County Compiled Zoning Ordinance, quoted and re-checked
  10. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  11. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  12. South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
  13. South Dakota Plumbing Commission - Inspections (South Dakota statewide rule), quoted and re-checked
  14. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  15. Codified Law 11-10 - Building Codes and Standards (South Dakota statewide rule), quoted and re-checked
  16. South Dakota Codified Law Chapter 11-10: Building Codes and Standards (South Dakota statewide rule), quoted and re-checked
  17. Planning & Zoning - Grant County, quoted and re-checked
  18. Planning & Zoning - Grant County, quoted and re-checked
  19. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  20. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  21. Grant County Compiled Zoning Ordinance, quoted and re-checked
  22. grantcounty.sd.gov, quoted and re-checked
  23. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  24. grantcounty.sd.gov, quoted and re-checked
  25. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  26. grantcounty.sd.gov, quoted and re-checked
  27. South Dakota Codified Law Chapter 43-21, Survey and Recording of Plats (South Dakota statewide rule), quoted and re-checked
  28. SUBDIVISION, quoted and re-checked
  29. South Dakota DANR On-Site Wastewater Systems (danr.sd.gov)
  30. 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
  31. Administrative Rule 74:53:01 — Individual and Small On-Site Wastewater Systems (South Dakota statewide rule), quoted and re-checked
  32. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  33. grantcounty.sd.gov, quoted and re-checked
  34. Planning & Zoning - Grant County, quoted and re-checked
  35. South Dakota Electrical Wiring Rules Bulletin (South Dakota statewide rule), quoted and re-checked
  36. Grant County Compiled Zoning Ordinance 032423, quoted and re-checked
  37. South Dakota Water Rights - Drilling a Well, quoted and re-checked
  38. Effective property tax rate: Bolthole Index county data
  39. Median property tax bill: Bolthole Index county data

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 6 of its neighbors, Grant County requires a building permit for a home.

RuleGrant CountyCodington CountyRoberts CountyDeuel CountyDay CountyHamlin CountyClark County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsSD DANRDANRDANRDANRSD DANRDANRDANR

County locator

Grant County in South Dakota

53
County map
Grant County highlighted among the South Dakota counties · colored by Index score

How Grant County scores

Seclusion74100% ev.
Self-Sufficiency26100% ev.
Admin Boringness49100% ev.
Durability43100% ev.
Property Autonomy67100% ev.
Carry Cost78100% 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 →

$247kTypical home
0.9%Property tax
$4,207Land / acre
25.6"Annual rain
4.2% of yrsSevere drought
4.9 / yr (+4.4)Mid-century 100°F days
19.8 daysMid-century dry spell
1.37" (+10.1%)Mid-century 1-day rain
1.65×Wildfire change factor
100%Forward climate coverage
$1,869Home insurance / yr
5.9% / yrInsurance growth
0.46%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
9,007People within 30 min
542,470People within 2 hr
8,102Radius comparison (15 mi)
11.1People / sq mi
17.1%Federal land
95%Land at 15% slope or less
6.3%Soils rated "not limited" for septic (strict USDA rating)
27,488 acWorkable land screen
2.8%Wooded land
54.2 tonsBiomass / forest ac
43.3°FAvg temp

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Cities and towns in Grant 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.

Adams Township · Alban Township · Town of Albee · Big Stone Township · Big Stone City · Blooming Valley Township · Farmington Township · Georgia Township · Grant Center Township · Kilborn Township · Town of La Bolt · Lura Township · Madison Township · Town of Marvin · Mazeppa Township · Melrose Township · Milbank · Osceola Township · Town of Revillo · Town of Stockholm · Stockholm Township · Town of Strandburg · Troy Township · Town of Twin Brooks · Twin Brooks Township · Vernon Township

Answers from the rulebook for Grant County

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

Grant County rules

  • Building permitRequired

    Excavation, construction, moving, or alteration of any building or accessory building regulated by the county zoning ordinance.

    • The permit must be issued by the County Zoning Officer before work begins.
    • The permit must be displayed conspicuously and visibly from the public right-of-way.
    • The application must include a dimensioned sketch or scale plan, building uses, and existing or proposed water and sewer facilities.
    • A permit expires after six months unless substantial progress has been made; work must begin within 180 days and be substantially completed within one year or the permit expires and a new permit is required.

    permit expiration without substantial progress: 6 months · work commencement deadline: 180 days · substantial completion deadline: 1 year

    “It shall be unlawful to commence the excavation for or the construction of any building or any accessory building”
    One more reviewed finding on this topic
    • Required — Construction, excavation, moving, alteration, or accessory-building work regulated by the Grant County zoning ordinance.
      “It shall be unlawful to commence the excavation for or the construction of any building or any accessory building, or to commence the moving or alteration of any buildings, including accessory buildings, until the County Zoning Officer has issued a building permit for such work.”
  • Building code adoptedPartial

    Accessory agricultural housing/shared dwellings regulated by the county ordinance.

    • Before occupying an accessory agricultural housing dwelling/shared dwelling, documentation of compliance with the most recently adopted International Building Code is required for any dwelling structure with two or more dwelling units.
    • The source does not establish countywide adoption of a building code for all construction.
    “provide documentation of compliance with the most recently adopted version of the International Building Code”
    One more reviewed finding on this topic
    • Partial — Certain county-regulated uses and structures, including cannabis establishments, data processing centers, and accessory agricultural housing with two or more dwelling units.
      “All Cannabis Establishments are required to be constructed in conformance with the 2021 Edition of the International Building Code and International Fire Code.”
  • InspectionsLimited

    Inspections conducted by the County Zoning Officer for enforcement of the zoning ordinance.

    • The source establishes inspection authority for enforcement, not a complete construction-stage inspection schedule.
    “who shall have the power to make inspection of building or premises necessary to carry out his duties in the enforcement of this regulation.”
    One more reviewed finding on this topic
    • Limited — Inspections by the County Zoning Officer for enforcement of the zoning ordinance.
      “who shall have the power to make inspection of building or premises necessary to carry out his duties”
  • County-wide zoningPresent

    County zoning in Grant County unincorporated areas.

    • The zoning ordinance applies to unincorporated portions of the County; incorporated municipalities may administer their own land-use rules.
    “Pursuant to SDCL Chapter 11-2, 1967, as amended, the provision of this Ordinance shall apply within the unincorporated areas of Grant County, South Dakota, as established on the map entitled "The Official Zoning Map of Grant County, South Dakota."”
  • Local zoningPresent (with conditions)

    County zoning districts and district regulations in the unincorporated area of Grant County.

    • The ordinance applies to the unincorporated area; incorporated municipalities may have separate land-use rules.
    • District-specific permitted, conditional, dimensional, height, parking, and other requirements apply.
    “The unincorporated area of the County is hereby divided into zones, or districts, as shown on the Official Zoning Map”
  • Zoning districtsPublished (with conditions)

    County zoning districts and district-specific development standards in Grant County.

    • The ordinance includes Agricultural, Commercial/Industrial, Natural Resource, and other district provisions; the applicable district controls uses and dimensional standards.
    • A parcel-specific determination requires consulting the zoning map and ordinance.
    “the unincorporated areas of the County may be divided into any of the following zoning districts: A--Agricultural; CI--Commercial/Industrial; NR--Natural Resources; PD--Planned Development Project District; AP--Aquifer Protection Overlay District.”
    One more reviewed finding on this topic
  • Minimum dwelling sizeSpecified

    Manufactured homes classified as Type A or Type B under the Grant County zoning ordinance.

    • These are manufactured-home classification thresholds, not a general minimum floor area for every dwelling type.

    Type A occupied space: > 1200 square feet · Type B occupied space: > 700 square feet

    “Type B Manufactured Home shall: i. Have more than 700 square feet of occupied space in a single, double, expando or multi-section unit.”
  • Minimum lot sizeSpecified

    Specific county-regulated uses, including Class A-E concentrated animal feeding operations and private campgrounds.

    • The cited minimums are use-specific and do not establish one minimum lot size for every parcel or dwelling.

    minimum lot area for certain CAFOs: >= 80 acres (CAFOs established after June 9, 2016 as specified in the ordinance) · minimum private campground lot area: >= 5 acres

    “The minimum lot area requirement for a Class A, B, or C, concentrated animal feeding operation (CAFO) established after June 9, 2016 shall be (80) acres.”
    2 more reviewed findings on this topic
    • District specific (with conditions) — Lot-area requirements for county-zoned uses, including conditional-use areas.
      “Lot area shall be determined by need, setback, side yards, rear yards, parking requirements, freight handling requirements, building site and future expansion; however, in no case shall a lot have less than two (2) acres.”
    • Specified — Residential lots in the Grant County Agricultural District and commercial/industrial lots in the CI District.
      “All residential lots shall be a minimum of two (2) acres, not counting the road right-of-way.”
  • SetbacksDistrict specific (with conditions)

    Setbacks for buildings and regulated uses under county zoning.

    • Setbacks vary by zoning district and use.
    • All buildings must comply with applicable yard requirements.
    “All buildings shall be set back from road right-of-way lines and lot line to comply with the above yard requirements.”
    2 more reviewed findings on this topic
    • Specified — Buildings and uses subject to Grant County zoning district yard and separation requirements.
      “No building shall be constructed within fifty (50) feet of the rear lot line. The rear yard shall be one hundred (100) feet if the lot abuts an interstate or major highway.”
    • Specified — Buildings and lots in the Agricultural District and certain CI uses.
      “The minimum depth of the front yard shall be not less than one hundred (100) feet”
  • Lot coverageSpecified

    Commercial and industrial uses in the Grant County CI District.

    • Buildings may occupy no more than 25 percent of the lot.

    maximum building lot coverage: <= 25 percent (CI commercial and industrial uses)

    “For commercial and industrial uses, buildings shall occupy no more than twenty-five (25) percent of the lot.”
  • Building heightSpecified

    Main buildings in the Agricultural District.

    • Main buildings may not exceed two and one-half stories or 35 feet.
    • Exceptions include agricultural buildings, chimneys, smokestacks, cooling towers, radio and TV towers, water tanks, elevators, and other structures not used for human occupancy.

    maximum main-building height: <= 35 feet (listed structures and structures not used for human occupancy)

    “No main buildings shall exceed two and one-half (2 1/2) stories or thirty-five (35) feet in height.”
    2 more reviewed findings on this topic
    • Specified — Main buildings in the Agricultural District.
      “No main buildings shall exceed two and one-half (2 1/2) stories or thirty-five (35) feet in height. Exceptions include the following:”
    • Specified — Main buildings in the Agricultural District.
      “No main buildings shall exceed two and one-half (2 1/2) stories or thirty-five (35) feet in height.”
  • Living in an RVTemporary only (with conditions)

    Camping units and recreational vehicles in a Grant County private campground.

    • Private campgrounds require a conditional-use permit.
    • The campground is for temporary living quarters; a parcel with an existing single-family residence generally cannot contain a private campground, except an Extended Home Business.
    • Minimum lot area is five acres; each campsite is at least 2,000 square feet; one camping unit per campsite; no manufactured homes; maximum three unrelated adults per camping unit.
    • Electricity, potable water, and sewage disposal must meet applicable state and county codes.

    minimum campground lot area: >= 5 acres (Extended Home Business exception to road and existing-residence restrictions) · minimum campsite area: >= 2000 square feet · maximum camping units per campsite: 1 unit · maximum unrelated adults per camping unit: <= 3 adults

    “The purpose of this chapter is to provide for areas in the county for camping units to be located and occupied as temporary living quarters in a campground setting.”
  • Camping on your landLimited

    Temporary camping in private campgrounds under the county zoning ordinance.

    • Private campgrounds are subject to the listed site, road, utility, sanitation, recordkeeping, access, health, and conditional-use-permit requirements.
    • No manufactured homes may be located in the campground.
    • The Board of Adjustment may impose additional neighborhood-compatibility conditions.

    minimum campground lot area: >= 5 acres · minimum campsite area: >= 2000 square feet · one-way access-road width: >= 14 feet · two-way access-road width: >= 20 feet

    “No manufactured homes shall be located in the campground.”
    One more reviewed finding on this topic
  • Manufactured homesLimited

    Placement and occupancy of manufactured homes in unincorporated Grant County.

    • Type A homes must have more than 1,200 square feet of occupied space, removed running gear and hitch, a foundation, permanent footing, a permanent perimeter enclosure, a gabled roof with pitch at least 2/12, customary residential siding, and customary residential roofing.
    • Type B homes must have more than 700 square feet of occupied space, a perimeter enclosure, anchoring, and an approved support system.
    • The maximum age is 20 years, subject to the ordinance's variance procedure.

    Type A occupied space: > 1200 square feet · Type B occupied space: > 700 square feet · maximum manufactured-home age: <= 20 years (variance procedure may apply)

    “Type A Manufactured Home shall: i. Have more than 1,200 square feet of occupied space in a double-section or larger multi-section unit.”
  • Accessory dwellingsLimited

    Accessory agricultural housing associated with Class A concentrated animal feeding operations.

    • Accessory agricultural housing is a permitted accessory use to Class A CAFOs but must be approved by the Board of Adjustment.
    • The property should be within five miles of the permitted Class A CAFO and owned by the permit-holder.
    • At least two acres are required per accessory agricultural housing dwelling unit.
    • The number of dwellings and occupants is tied to animal-unit ranges.
    • The source does not establish a general accessory-dwelling rule for ordinary residential parcels.
    “Accessory Agricultural Housing is a permitted accessory use to Class A Concentrated Animal Feeding Operations (CAFOs).”
    One more reviewed finding on this topic
    • Limited — Accessory agricultural housing associated with Class A concentrated animal feeding operations.
      “Accessory Agricultural Housing is a permitted accessory use to Class A Concentrated Animal Feeding Operations (CAFOs). Accessory Agricultural Housing must be approved by the Board of Adjustment.”
  • Mandatory utility hookupConditional

    Private campgrounds regulated by the county ordinance.

    • Private campgrounds must provide electric service, potable water, and sewage-disposal facilities meeting applicable state and county codes and regulations.
    “The campground(s) shall be supplied with electric, potable water supply and sewage disposal facilities”
  • Agricultural exemptionConditional

    Customary farm and animal fencing in the Agricultural District.

    • The exemption is limited to customary farm and animal fencing; it does not establish a general exemption from all building or zoning requirements.
    “Customary farm and animal fencing in the Agricultural District is exempt from this Section.”
  • Subdividing landRegulated (with conditions)

    Subdivision of land in Grant County.

    • Subdivision approval and plat recording are required before sale or structure permits in a proposed subdivision.
    • Violations can prevent zoning or building permits and may result in penalties.
    “the developer, owner, or authorized agent shall apply for and secure approval of such proposed subdivision”
    2 more reviewed findings on this topic
    • Regulated (with conditions) — Subdivision of land in the unincorporated areas of Grant County.
      “These subdivision regulations shall apply to all subdivisions of land, as described herein, located within the unincorporated area of the county.”
    • Regulated (with conditions) — Subdivision of land in the unincorporated area of Grant County.
      “These subdivision regulations shall apply to all subdivisions of land, as described herein, located within the unincorporated area of the county.”
  • Driveway accessRequired

    Driveways and proposed uses or structures in the county zoning jurisdiction, especially those adjacent to South Dakota highways.

    • Driveway separation from adjacent driveways is 100 feet on local roads, 300 feet on collector roads, and 500 feet on arterial roads; the minimum distance from an intersection is 100 feet.
    • For proposed uses and structures adjacent to a State highway, a South Dakota Department of Transportation access permit is required before filing a plat or issuing a building/use permit.

    local-road driveway separation: >= 100 feet · collector-road driveway separation: >= 300 feet · arterial-road driveway separation: >= 500 = · minimum intersection distance: >= 100 feet

    “For all proposed uses and structures adjacent to a State highway, an access permit from the State of South Dakota Department of Transportation shall be required prior to the filing of a plat or the issuance of a building/use permit.”
    One more reviewed finding on this topic
    • Limited — Driveways serving parcels in the Agricultural District and proposed uses or structures adjacent to South Dakota state highways.
      “For all proposed uses and structures adjacent to a State highway, an access permit from the State of South Dakota Department of Transportation shall be required prior to the filing of a plat or the issuance of a building/use permit.”
  • Building in a floodplainRequired

    Construction or development within an area of special flood hazard in Grant County.

    • A development permit is required before construction or development begins in an area of special flood hazard.
    • Applications may require scaled plans showing nature, location, dimensions, elevations, structures, fill, storage, and drainage facilities.
    • Required information includes lowest-floor elevation, floodproofing elevation, registered professional engineer or architect certification for nonresidential floodproofing, and watercourse alteration details.
    • If development adversely affects flood carrying capacity, technical justification such as a registered professional engineer’s certification is required.
    • Residential new construction and substantial improvements must elevate the lowest floor, including basement, to or above base flood elevation.
    • Floodway encroachments are prohibited unless technical evaluation demonstrates no increase in flood levels during the base flood discharge.
    • For subdivision proposals or other development containing at least 50 lots or 5 acres, whichever is less, base flood elevation data must be provided.

    base flood probability: 1 percent chance per year · base flood elevation data threshold: 50 lots or 5 acres, whichever is less

    “A development permit shall be obtained before construction or development begins within any area of special flood hazard”
    One more reviewed finding on this topic
    • Required — Construction or development within an area of special flood hazard.
      “A development permit shall be obtained before construction or development begins within any area of special flood hazard”
  • Permit feesPublished (with conditions)

    Grant County Planning & Zoning permit and hearing fees displayed on the county Planning & Zoning webpage.

    • Structure, non-agricultural fence, and wind-tower permit fees vary by construction cost including labor.
    • The webpage separately lists fees for temporary tower structures, shelterbelt permits, BOA appeals, variance hearings, conditional-use/CAFO hearings, rezoning hearings, special hearings, plat inspection, and drainage permits.
    • The source does not state an effective date for the displayed fee schedule.

    structure/non-agricultural fence/wind-tower permit fee for construction cost $0–$10,000 including labor: 25 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $10,000–$30,000 including labor: 60 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $30,001–$50,000 including labor: 100 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $50,001–$100,000 including labor: 200 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $100,001–$200,000 including labor: 400 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $200,001–$300,000 including labor: 600 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $300,001–$500,000 including labor: 1000 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $500,001–$700,000 including labor: 1400 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $700,001–$900,000 including labor: 1800 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $900,001–$1,000,000 including labor: 2000 USD · structure/non-agricultural fence/wind-tower permit fee for construction cost $1,000,001 and over: 2 USD per $1,000 · plat inspection fee: 100 USD + $5.00 per lot · drainage permit fee: 100 USD per parcel

    “Fees Permit Application – Structure / Non-Ag Fence / Wind Towers Construction Cost / Including Labor $0 – $10,000 [...] FEE $25.00”
    One more reviewed finding on this topic
    • Published (with conditions) — County planning, zoning, building, and related permit applications.
      “Assist in completing applications and collect fees”
  • Permit processPublished (with conditions)

    County planning, zoning, building-permit, subdivision, and related applications.

    • Building-permit applications are available for pickup each day and are approved by the Planning & Zoning Officer after review.
    • Conditional-use and variance applications have monthly agenda deadlines and publication requirements.
    • Final plats must be filed before the stated monthly deadline.
    “approved by the Planning & Zoning Officer after review.”
    One more reviewed finding on this topic
    • Published (with conditions) — County building permits, conditional-use/variance permits, and final plats.
      “Conditional Use/Variance Permits: Applications can be obtained at any time, but must be returned before 12:00pm on the second Tuesday of each month to be on the Planning & Zoning agenda (to allow for review and 10-day mandatory publication of hearings).”

South Dakota rules that apply here

  • Owner-builder exemptionAvailable (with conditions)

    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”
  • Who permits septicState (with conditions)

    On-site wastewater systems in South Dakota, including Grant County.

    • South Dakota minimum requirements and standards apply under SDCL Chapter 34A-2 and ARSD Articles 74:53:01.
    • Local governments may have more stringent regulations; the source does not establish a Grant County-specific supplemental septic rule.
    • DANR contact is required before installation of any new on-site system except conventional systems serving an individual residence.
    • Plans and specifications must be submitted to DANR for installations receiving human excreta other than a conventional individual onsite system.
    • Installers of individual and small wastewater systems must be certified by the South Dakota Plumbing Commission.
    “The authority for regulating on-site wastewater systems is found in SDCL Chapter 34A-2.”
    2 more reviewed findings on this topic
    • Mixed (with conditions) — On-site wastewater systems in Grant County, subject to South Dakota minimum standards and potentially more stringent local requirements.
      “These regulations are the state’s minimum requirements and standards, but local governments may have more stringent regulations.”
    • 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 on-site wastewater systems in Grant County.

    • DANR should be contacted before installation of any new on-site system except a conventional on-site system serving an individual residence.
    • Plans and specifications must be submitted for installations receiving human excreta other than a conventional individual onsite system.
    • Works of sanitary significance require plans and specifications at least 30 days before construction.
    • Local governments may impose more stringent requirements.

    advance submission for works of sanitary significance: >= 30 days

    “You should contact DANR prior to the installation of any new on-site system except those conventional on-site systems serving an individual residence.”
  • Off-grid sanitationLimited

    Unconventional or off-grid wastewater systems where water or electrical systems are unavailable.

    • ARSD 74:53:01:10 addresses unconventional systems when water or electrical systems are unavailable.
    • Nonconventional systems receiving human excreta require DANR plan and specification submission.
    • Applicable state and potentially stricter local requirements remain applicable.
    “Vault privies, chemical toilets, incinerator toilets, or composting units shall be used when a water or electrical system is not available.”
    One more reviewed finding on this topic
  • 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.”
    2 more reviewed findings on this topic
    • Limited — Water uses in Grant County for which South Dakota requires a water-right permit before well drilling.
      “Your proposed water use may require obtaining a water right permit. In order to determine whether you need a permit, please refer to the Using Water in SD web page. If a water right permit is needed, state law requires the permit to be approved prior to doing any well drilling.”
    • Limited — Water wells and associated water uses in Grant County.
      “If a water right permit is needed, state law requires the permit to be approved prior to doing any well drilling.”
  • 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 Grant 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.

  • Tiny homes
  • 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 — Certificate-of-occupancy requirements for buildings in Grant County.
  • Septic inspection — On-site wastewater systems in Grant 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 Grant County, South Dakota

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

Grant County scores 53/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and sparse surroundings — about 9,007 people within a 30-minute drive. Watch-outs: workable self-sufficiency basics (25.6″/yr rainfall).

Do you need a building permit in Grant County, South Dakota?

Grant County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by South Dakota DANR (On-Site Wastewater / Feedlot Permit Program). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Grant County, South Dakota?

Land in Grant County runs about $4,207 per acre, based on the latest county data.

What is the water situation in Grant County?

Grant County gets about 25.6" of rain a year, with severe drought in roughly 4.2% of years.

How remote is Grant County?

A representative private-land location has about 9,007 people within a 30-minute drive and 542,470 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 Grant compares in South Dakota

Compare side-by-side →See all 66 South Dakota counties ranked →