Unincorporated Codington County, South Dakota requires a building permit before excavation for construction, construction, or moving any building1. Codington County also administers and enforces zoning in its unincorporated areas2. Start with the Codington County Planning and Zoning Office; separate state requirements govern septic, electrical, plumbing, wells and state-highway access345.
At a glance
- Building permit
- Required before excavation for construction, construction, or moving a building in unincorporated areas1
- Zoning
- Administered and enforced by Codington County in unincorporated areas2
- Permit fees
- Based on construction value, including labor and materials6
- Septic
- State minimum rules apply; confirm the current local permit and inspection path before installation4
- RV and tiny-home living
- Not confirmed; ask the Planning and Zoning Office about the parcel and proposed occupancy2
- Owner electrical work
- A qualifying owner-occupant may do personal wiring with a homeowner permit and inspections7
- Wells
- The proposed water use may require a state water-right permit before drilling8
- Septic soil difficulty
- Only 0.1% of county soils lack severe limits for a conventional drain field9
Who to call
Building permits
Codington County Planning and Zoning Office
Building and zoning applications, permit requests, zoning administration, site plans, subdivision plans, variances and conditional uses in Codington County
1910 West Kemp Avenue, Watertown, SD 57201-3048
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Codington County, South Dakota?
Yes. Unincorporated Codington County requires a building permit before excavation for construction, before constructing a building, or before moving a building1. The permit fee depends on the value of construction, including materials and labor6. Starting without the permit can bring an administrative charge of up to 200% of the ordinary permit fee, and failure to obtain required permits may lead to civil or criminal proceedings1. County inspections are for zoning-ordinance compliance; the reviewed rule does not establish a mandatory construction-inspection schedule for every project10. South Dakota electrical and plumbing approvals may still apply separately from the county permit1112.
Who issues Codington County building permits, and how do you reach the office?
The Codington County Planning and Zoning Office reviews permit requests and issues applicable permits3. Reach the office at (605) 882-6300 or [email protected], or visit the Codington County Extension Complex at 1910 West Kemp Avenue, Watertown, SD 57201-30483. Building and zoning applications are available from the office or its webpage3. A complete application requires the applicant's contact information, legal description, construction description, site plan and fee; the original signed application returns with payment by cash or check13. A complete application that conforms to the zoning ordinance is generally issued in 4–5 business days13. Ask the office to confirm the current submission method because the reviewed process says email is not an acceptable application submission method13.
Does Codington County have zoning?
Yes. Codington County administers and enforces zoning in its unincorporated areas2. The Planning Commission reviews site plans and subdivision plans, while the County Commission approves plats and ordinance or comprehensive-plan amendments after a Planning Commission recommendation143. Incorporated municipalities and joint-jurisdiction areas may follow separate rules, so verify which authority covers the parcel2. The reviewed material does not confirm a countywide minimum dwelling size, general lot-coverage limit, or a complete setback schedule. Ask the Planning and Zoning Office for the parcel's current zoning district and adopted ordinance before designing a house or outbuilding. South Dakota's default construction-design exclusion for qualifying farmsteads is not a blanket exemption from local zoning, permits, occupancy rules or other requirements15.
How do septic permits work in Codington County?
South Dakota DANR administers statewide minimum requirements for individual and small onsite wastewater systems, and local governments may impose stricter requirements4. The available material does not confirm Codington County's current permit or inspection path for every individual septic system, so contact the Planning and Zoning Office and DANR before installation. Parcel-specific soil evaluation should happen early: only 0.1% of Codington County soils are rated without severe limitations for a conventional septic drain field9. That countywide rating is a screening signal, not a determination for a particular homesite. Where water or electricity is unavailable, state rules allow specified unconventional sanitation systems, but experimental systems other than vault privies require state approval of plans and specifications before installation16.
Can you live in an RV or tiny home in Codington County?
The available official material does not confirm whether long-term RV occupancy, temporary camping, or tiny-home occupancy is allowed on private land in unincorporated Codington County. Because Codington County administers zoning in unincorporated areas, ask the Planning and Zoning Office how the current ordinance classifies the proposed unit and residential use23. Also ask about the parcel's district, setbacks, minimum dwelling size, sanitation, and whether placing or moving the unit requires a building permit. Codington County requires a permit to move a building, but the available claim does not establish that every RV is treated as a building1. Do not treat the lack of a confirmed rule as permission. A qualifying owner may personally wire an owner-occupied residence or farmstead, but that state licensure exemption still requires a homeowner permit and inspections7.
Building a home in Codington County: the steps, in order
- Ask the Planning and Zoning Office to identify the parcel's zoning authority and district, and confirm whether the project needs site-plan, subdivision, conditional-use, variance or rezoning review214.
- Confirm the current septic approval path with the county and DANR, and obtain a parcel-specific soil and site evaluation49.
- Determine whether the proposed well use requires a water-right permit; if required, approval must come before drilling8.
What should you check before buying land in Codington County?
Begin with the parcel's zoning district, permitted residential use, setbacks, plat status and legal access because Codington County regulates zoning and subdivision in unincorporated areas214. Investigate septic feasibility before choosing a building site: only 0.1% of county soils are rated without severe limits for a conventional drain field9. For a well, determine whether the intended use needs a state water-right permit before drilling8. Check mapped flood risk; participating South Dakota communities require permits for all floodplain development, but we could not confirm Codington County's parcel-specific floodplain process17. Confirm driveway authority too: connections to a state highway require South Dakota Department of Transportation permission, while the county-specific rule covers a narrower commercial-district situation518.
Watch-outs
- Starting excavation or construction without the Codington County building permit can add an administrative charge of up to 200% of the permit fee and may lead to civil or criminal proceedings1.
- Codington County RV living, temporary camping, tiny-home occupancy, minimum dwelling size and general setbacks remain unconfirmed; ask the Planning and Zoning Office for a parcel-specific answer23.
- Only 0.1% of Codington County soils are rated without severe limitations for a conventional septic drain field, so obtain a site evaluation before relying on a conventional system9.
- The county webpage says ordinances posted there may be drafts, so obtain the adopted zoning text directly from the Planning and Zoning Office before relying on a downloaded copy3.
Sources
- Zoning Office – Codington County South Dakota, quoted and re-checked
- Zoning Office – Codington County South Dakota, quoted and re-checked
- Codington County Planning and Zoning Office (codington.sdcounty.gov)
- On-Site Wastewater Systems in South Dakota (South Dakota statewide rule), quoted and re-checked
- Instructions: Applying for permission for driveway or intersection on a South Dakota state highway (South Dakota statewide rule), quoted and re-checked
- Frequently Asked Questions (FAQ), quoted and re-checked
- South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
- South Dakota Water Rights – Drilling a Well, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Ordinance #67 – Article IV Administration, quoted and re-checked
- South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
- South Dakota Plumbing Commission - Inspections (South Dakota statewide rule), quoted and re-checked
- Frequently Asked Questions (FAQ), quoted and re-checked
- Zoning Office – Codington County South Dakota, quoted and re-checked
- South Dakota Codified Law Chapter 11-10: Building Codes and Standards (South Dakota statewide rule), quoted and re-checked
- Administrative Rule 74:53:01 — Individual and Small On-Site Wastewater Systems (South Dakota statewide rule), quoted and re-checked
- National Flood Insurance Program (South Dakota statewide rule), quoted and re-checked
- Ordinance No. 61 – Joint Jurisdiction, quoted and re-checked
Written September 27, 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.