Bolthole Index

Hanson County, South Dakota

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

45Index Score / 100
#48 of 66 in South Dakota

Hanson County, South Dakota has county zoning, but we could not confirm a general county building-permit requirement from the available official material.1 Start with the Hanson County Zoning Administrator before building on unincorporated land.2 South Dakota administers statewide on-site wastewater requirements, and Hanson County separately requires a development permit in special flood hazard areas.34

At a glance

Building permit
General county requirement not confirmed; ask the Zoning Administrator15
Zoning
Yes; Hanson County administers zoning in unincorporated areas2
Septic
South Dakota minimum rules apply; some systems require state plan review36
RV living
Long-term private-land occupancy was not confirmed; ask the Zoning Administrator2
Tiny home
No specific occupancy or minimum-size rule was confirmed; county zoning applies2
Owner electrical work
Qualifying resident owners may do their own wiring with a homeowner permit and inspections7
Floodplain work
A county development permit is required in special flood hazard areas4
Water well
A state water-right permit may be required before drilling8

Who to call

Zoning

Hanson County Zoning Administrator

Hanson County zoning questions and parcel-specific land-use guidance

605-239-4445

Septic permits

South Dakota Department of Agriculture and Natural Resources

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

(605) 773-4647

Contact details are copied from each office’s official page and were checked against it on September 28, 2026.

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

We could not confirm a general Hanson County building-permit requirement or a county building-code inspection program from the available official material.1 Hanson County does have an adopted zoning ordinance for unincorporated areas, so a project may still need zoning approval even when the building-code question is unresolved.2 Call the Hanson County Zoning Administrator before ordering materials and ask whether the proposed structure, use and location require a zoning or building approval.5

Floodplain work has a definite additional rule: development in a Hanson County special flood hazard area requires a floodplain development permit, with plans and elevation information reviewed by the county Floodplain Administrator.4 Electrical and plumbing work also follow separate state processes; covered electrical work requires inspections, and covered plumbing installations outside cities with their own programs require an inspection certificate.910

Who handles Hanson County building permits and zoning?

The Hanson County Zoning Administrator is the best first call for parcel-specific zoning and county approval questions at 605-239-4445.5 The county’s official departments page identifies that office but does not list a separate building department.5 Because the general building-permit requirement, building-code adoption, inspection schedule and certificate-of-occupancy process could not be confirmed, ask the Zoning Administrator to explain every county approval that applies before construction.1

For electrical work, South Dakota allows a qualifying individual owner to personally wire a residence or farmstead that the owner owns and occupies, but that exemption is only from licensure: an approved homeowner permit and inspections still apply.7 Covered plumbing work outside cities that run their own inspection programs requires a state plumbing inspection certificate.10

Does Hanson County have zoning?

Yes. Hanson County has adopted a zoning ordinance administered for unincorporated areas through the county zoning system.2 South Dakota law authorizes counties to regulate building size, lot coverage, yards, open spaces, density, and the location and use of buildings, structures and land.11 That makes the parcel’s zoning district central to questions about use, placement and setbacks.

The available material did not confirm Hanson County’s minimum dwelling size, parcel-specific setbacks, accessory-dwelling rules or a blanket agricultural exemption. Ask the Zoning Administrator to identify the district and current standards for the exact legal description.5 South Dakota’s statewide default construction-design provision excludes farmsteads and accessory farmstead structures from that particular default standard, but the exclusion does not waive local zoning, occupancy or other approvals.12

How do septic permits work in Hanson County?

South Dakota’s Department of Agriculture and Natural Resources administers statewide minimum requirements for individual and small on-site wastewater systems, while local governments may impose stricter requirements.3 DANR says South Dakota has installation requirements for on-site wastewater systems and lists (605) 773-4647 for more information.13 DANR should be contacted before a new system is installed unless it is a conventional on-site system serving one individual residence; other covered systems require plans and specifications submitted to the state.6

Only 9.8% of Hanson County’s mapped soils are rated without severe limitations for a conventional septic drain field.14 Treat that as a countywide screening signal rather than a parcel result, and arrange a site evaluation before fixing the house location. Unconventional off-grid sanitation can be used when water or electricity is unavailable, but systems other than vault privies are experimental and need state approval before installation.15

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

We could not confirm a Hanson County rule that specifically allows or prohibits long-term RV occupancy on private unincorporated land. Because Hanson County has zoning, ask the Zoning Administrator how the parcel’s district treats an RV used as a residence, temporary construction housing, utility connections and wastewater disposal.25

We also could not confirm a county rule written specifically for tiny homes or a countywide minimum dwelling floor area. A tiny home is not automatically exempt from zoning, septic, floodplain, electrical or plumbing requirements merely because it is small. Hanson County zoning remains applicable in unincorporated areas, South Dakota regulates on-site wastewater, and county floodplain permits apply in special flood hazard areas.234 Ask the Zoning Administrator whether the proposed unit is treated as a dwelling, manufactured home, recreational vehicle or accessory structure.5

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

  1. Call the Hanson County Zoning Administrator at 605-239-4445 with the parcel description, proposed use and site plan; ask for the district, setbacks and every required county approval.52
  2. Confirm whether Hanson County requires a building permit, structural-code review, inspections or a certificate of occupancy for the project, because those points could not be confirmed.1
  3. Evaluate the septic site early and contact DANR if the proposal is not a conventional system serving an individual residence.613
  4. Check the flood map and obtain a county development permit before work in a special flood hazard area.4
  5. Arrange the required state electrical and plumbing permits or certificates and inspections before work is covered or the home is occupied.1610
  6. Determine whether a state water-right permit is needed before drilling a well.8
  7. Obtain South Dakota Department of Transportation permission before constructing access to a state highway.17

What should you check before buying land in Hanson County?

Start with zoning, septic feasibility, flood exposure and legal access. Hanson County zoning applies in unincorporated areas, and work in a special flood hazard area needs a county development permit.24 Septic feasibility deserves particular attention because only 9.8% of mapped soils avoid severe limitations for a conventional drain field.14

Hanson County is sparsely settled at about 8 people per square mile, and the nearest city of 100,000 or more is about 54 miles from the county center.1819 Farmland value averages about $5,155 per acre, while the median property-tax bill is about $1,973 per year; parcel price and taxes can differ substantially from those countywide figures.2021 If access connects to a state highway, South Dakota requires an access permit before construction begins.17

Watch-outs

  • Do not assume that the absence of a confirmed general building-permit rule means no county approval is needed; Hanson County zoning still applies in unincorporated areas.12
  • Only 9.8% of mapped Hanson County soils lack severe limitations for a conventional septic drain field, so test the actual homesite before relying on a conventional design.14
  • A qualifying owner may perform personal electrical work only under the state homeowner-permit and inspection process; the owner exemption is not an exemption from permitting or inspection.7

Sources

  1. (2026 county census)
  2. Hanson County - County Ordinances (2026 county census)
  3. On-Site Wastewater Systems in South Dakota (South Dakota statewide rule), quoted and re-checked
  4. Hanson County Ordinance #55 Flood Damage Prevention Ordinance, quoted and re-checked
  5. Hanson County Zoning Administrator (hansoncountysd.gov)
  6. One-Stop Permitting and Regulation Guide (2025 Edition), quoted and re-checked
  7. South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
  8. South Dakota Water Rights — Drilling a Well (South Dakota statewide rule), quoted and re-checked
  9. South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
  10. South Dakota Plumbing Commission - Inspections (South Dakota statewide rule), quoted and re-checked
  11. 2000 Session Laws Chapter 69 — Planning and zoning statutes revised (South Dakota statewide rule), quoted and re-checked
  12. South Dakota Codified Law Chapter 11-10: Building Codes and Standards (South Dakota statewide rule), quoted and re-checked
  13. South Dakota Department of Agriculture and Natural Resources (danr.sd.gov)
  14. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  15. Administrative Rule 74:53:01 — Individual and Small On-Site Wastewater Systems (South Dakota statewide rule), quoted and re-checked
  16. South Dakota Electrical Wiring Rules Bulletin (South Dakota statewide rule), quoted and re-checked
  17. Instructions: Applying for permission for driveway or intersection on a South Dakota state highway (South Dakota statewide rule), quoted and re-checked
  18. Population density: Bolthole Index county data
  19. Distance to the nearest metro area: Bolthole Index county data
  20. Farmland value per acre (USDA census): Bolthole Index county data
  21. Median property tax bill: Bolthole Index county data

Written September 28, 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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County locator

Hanson County in South Dakota

45
County map
Hanson County highlighted among the South Dakota counties · colored by Index score

How Hanson County scores

Seclusion75100% ev.
Self-Sufficiency1699% ev.
Admin Boringness5968% ev.
Durability42100% ev.
Property Autonomy67100% ev.
Carry Cost76100% ev.

Evidence strength: 94%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$192kTypical home
1%Property tax
$5,155Land / acre
25.4"Annual rain
10.7% of yrsSevere drought
10.5 / yr (+8.5)Mid-century 100°F days
21.8 daysMid-century dry spell
1.47" (+5.8%)Mid-century 1-day rain
1.58×Wildfire change factor
100%Forward climate coverage
$1,675Home insurance / yr
5% / yrInsurance growth
1.72%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
10,746People within 30 min
459,568People within 2 hr
16,930Radius comparison (15 mi)
8People / sq mi
8.1%Federal land
95.9%Land at 15% slope or less
9.8%Septic soil without severe limits
27,120 acWorkable land screen
1.1%Wooded land
4.5 tonsBiomass / forest ac
46.6°FAvg temp

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Answers from the rulebook for Hanson County

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

Hanson County rules

  • Building in a floodplainRequired

    Development in Hanson County special flood hazard areas under Ordinance #55.

    • The county Floodplain Administrator reviews, approves, or denies development permit applications.
    • Applications require duplicated plans showing location, dimensions, elevation, structures, manufactured-home placement, and relationship to special flood hazard areas.
    • Lowest-floor elevation and applicable floodproofing information are required.
    • The community may charge a fee for issuance of floodplain development permits.
    • Approval considers flood danger, flood damage susceptibility, swept materials, compatibility, access, governmental service costs, flood characteristics, waterfront necessity, alternative locations, and the comprehensive plan.
    “A Floodplain Development Permit shall be required”
  • County-wide zoningPresent

    Ordinance #18 is the 'Hanson County Zoning Ordinance' (as amended), administered by the county Zoning Board for unincorporated areas.

    Hanson County - County Ordinances ↗Scouted from the county site, not yet independently re-checked

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”
  • 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.

    installation certificate fee: 20 USD · single-family inspection fee: 110 USD · small-structure inspection fee: 100 USD (Five or fewer fixtures.) · large-structure inspection fee: 275 USD (Six or more fixtures.)

    “You must have a plumbing inspection certificate for all plumbing installations.”
    One more reviewed finding on this topic
  • Who permits septicState

    Individual and small on-site wastewater systems statewide in South Dakota.

    • The South Dakota Department of Agriculture and Natural Resources secretary or authorized representative administers the state on-site wastewater requirements.
    • The state rules are minimum requirements; local governments may impose more stringent requirements, according to the DANR permitting guide.
    “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 Hanson 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 to DANR for installations receiving human excreta other than a conventional individual onsite system.
    • Works of sanitary significance require submission at least 30 days before planned construction.
    • Local governments may impose more stringent requirements.

    advance submission for works of sanitary significance: >= 30 days (per ARSD 74:53:04:05)

    “except those conventional on-site systems serving an individual residence”
  • 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.”
  • Agricultural exemptionAvailable (with conditions)

    Farmsteads and accessory structures or buildings thereto under South Dakota's default construction-design standard when the local unit of government has not adopted an ordinance prescribing standards under SDCL 11-10-5.

    • The default standard applies to building work commenced after July 1, 2026.
    • The local unit of government may adopt an ordinance allowing local administration and enforcement of the design standard.
    • The exclusion is from SDCL 11-10-6's default 2024 International Building Code design standard; it does not establish that all local zoning, building, occupancy, or other requirements are waived.
    • The statute defines farmstead as a farm or ranch, including any structure or building located on the land.
    • Residential structures and mobile or manufactured homes are also excluded from this specific default-standard provision.

    construction commencement date: > 2026-07-01 (The provision applies to buildings commenced after July 1, 2026.) · building standard: 2024 International Building Code (The default standard does not apply to a farmstead or accessory structure or building thereto.)

    “farmstead and any accessory structure or building thereto.”
  • Driveway accessLimited

    New or modified driveways and intersections connecting to South Dakota state highways.

    • Permission from the South Dakota Department of Transportation is required for access to a state highway.
    • The application may require an access approach design, vicinity map, estimated traffic volumes, three copies of a site plan, traffic-control plan, liability insurance, development plan, drainage plan, traffic-impact study, and revegetation plan.
    • Construction cannot begin until the access permit is issued.
    • The permittee pays construction, maintenance, and removal costs.
    • The permit expires if access is not under construction within one year, subject to one written one-year extension.
    • Access construction must be completed within 45 days after initiation within the highway right-of-way.

    application review update threshold: 30 days (If the application is not completed within 30 days, a Department employee will contact the applicant with an update.) · construction completion period: 45 days (Measured from initiation of construction within the highway right-of-way.)

    “Construction of the access shall not proceed until the access permit is issued. The access shall be completed in an expeditious and safe manner and shall be finished within 45 days from the initiation of construction within the highway right-of-way.”
  • Permit feesPublished (with conditions)

    South Dakota state electrical wiring permits, including residential and farmstead wiring subject to state administration.

    • A wiring permit is required for electrical service entrances over 60 amperes, owner-exemption wiring, and other installations with an estimated inspection fee of at least $30.
    • Local inspection systems may have their own procedures, inspection fees, and regulations.
    • Inspection fees are separate from the $20 wiring-permit fee.

    wiring permit fee: 20 USD · permit validity: 3 years (A new permit is required if the installation extends beyond three years.) · late permit administrative fee: 250 USD (Applies when the permit is not dated at job start or is not renewed before expiration.)

    “A wiring permit may be obtained for twenty dollars from the commission office. A wiring permit is valid for three years from the date the permit is issued.”
  • Permit processPublished (with conditions)

    South Dakota state electrical wiring permits and inspections.

    • The installer must send the white permit copy to the Commission within 15 calendar days after starting the installation.
    • The permit hard copy must be posted at the job site when electrical work starts.
    • At least 72 hours' notice is required before inspection.
    • A rough-in inspection must occur before wiring is covered, and a final inspection is required before occupancy.
    • Homeowner permits are limited to qualifying owner-occupied residences or farmsteads and cannot be used for commercial or rental property.

    white permit copy submission deadline: 15 calendar days after starting installation · inspection notice: >= 72 hours

    “Within fifteen calendar days after starting an electrical installation, the installer shall send the white copy to the office of the commission.”
  • 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.”

Still unanswered

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

  • Building code adopted — County building-code adoption and administration.
  • Certificate of occupancy — Certificate-of-occupancy requirements in Hanson County.
  • Minimum dwelling size — Minimum dwelling size in Hanson County zoning districts.
  • Living in an RV — Long-term or residential occupancy of recreational vehicles on private land in unincorporated Hanson County.
  • Tiny homes — Tiny-home occupancy in unincorporated Hanson County.
4 more unanswered
  • Accessory dwellings
  • Septic inspection
  • Mandatory utility hookup
  • Short-term rentals

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 Hanson County, South Dakota

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

Hanson County scores 45/100 on the Bolthole Index, a marginal county profile. Its strengths: manageable long-term carry cost and sparse surroundings — about 10,746 people within a 30-minute drive. Watch-outs: workable self-sufficiency basics (25.4″/yr rainfall).

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

Building-permit rules for unincorporated Hanson County are not published on an official source, 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 Hanson County, South Dakota?

Land in Hanson County runs about $5,155 per acre, based on the latest county data.

What is the water situation in Hanson County?

Hanson County gets about 25.4" of rain a year, with severe drought in roughly 10.7% of years.

How remote is Hanson County?

A representative private-land location has about 10,746 people within a 30-minute drive and 459,568 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.

Off-grid gear

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

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How Hanson compares in South Dakota

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