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

Aurora County's public listing confirms that the Department of Equalization provides building permits, but it does not specify which construction, additions or alterations require one¹. The practical answer is to call before starting: the county listing specifically directs people with questions about adding to a building or constructing a new building to contact the office¹.

A county building-code adoption, inspection schedule, certificate-of-occupancy rule, exemption list and fee schedule could not be confirmed. Ask the Department of Equalization to identify the permit, current fee, required site plan or drawings, review time and inspections for the exact parcel and scope¹. South Dakota also bars a county, municipality or township from requiring a building permit for certain like-for-like repairs to a detached owner-occupied single-family home, such as a same-size door or window, gutters, downspouts, fascia, soffit, fencing or nonstructural siding; the homeowner still must meet other applicable codes⁶. Separate state trade requirements can still apply: plumbing installations outside cities that administer their own program require a state plumbing inspection certificate⁷. State-regulated electrical work also requires rough-in inspection before concealment and final inspection before occupancy⁴.

The Aurora County Department of Equalization is the published contact for building permits and zoning¹. The office is at 401 N. Main Street, Aurora County Courthouse, Plankinton, SD 57368; call 605-942-7164 or email doe@auroracountysd.gov¹. The published application process is to call for information, and no online permit portal is listed¹.

Start the call with the parcel location and a precise description of the proposed structure, addition or change in use. Ask whether the parcel is governed by county rules or an incorporated municipality, which application applies, what plans are required, and whether zoning approval must come before a building permit. The listing establishes that the office handles these subjects, but it does not publish application steps, review timing or fees¹. For wastewater questions, South Dakota DANR publishes statewide installation requirements and a contact for installation-plan questions⁸.

Aurora County's Department of Equalization handles zoning, and its listing names a zoning director, so the county does administer zoning^1,3. We could not confirm the ordinance, map or district schedule, or whether every part of the county is regulated¹. South Dakota law allows a county board to adopt zoning for matters such as building size, yards, density, land use and floodplains, but that enabling authority does not prove which rules Aurora County adopted⁹.

Ask the Department of Equalization for the current zoning status of the specific parcel and for any applicable map, district rules, setbacks, minimum lot size, building-height limit or subdivision review¹. Do not assume that a parcel is unrestricted merely because the ordinance is not readily available online. Municipal zoning authorities may have separate rules inside incorporated towns, so confirm jurisdiction using the property's legal description rather than its mailing address; septic rules stay with the state program in either case^1,2.

South Dakota DANR administers statewide minimum requirements for individual and small on-site wastewater systems, and local governments may impose stricter requirements². DANR should be contacted before installing a new system except a conventional on-site system serving an individual residence; other systems receiving human waste require plans and specifications submitted to DANR². DANR publishes its installation requirements and a phone contact for installation-plan questions⁸.

Wastewater feasibility deserves attention before purchase because only about 5.2% of Aurora County soils are rated without severe limitations for a conventional septic drain field¹⁰. That countywide measure does not decide whether a particular homesite will work, so obtain a site-specific evaluation before fixing the house location or system budget. A general Aurora County septic-inspection requirement could not be confirmed; ask DANR and the Department of Equalization whether local approval or inspection supplements the state process^1,8.

A county rule expressly allowing or prohibiting long-term RV occupancy, temporary camping or tiny-home occupancy in Aurora County could not be confirmed. Ask the Department of Equalization how the parcel's jurisdiction and any zoning rules classify the proposed unit and residential use before moving it onto the land¹. The same call should cover minimum dwelling size, setbacks, manufactured homes, accessory dwellings and whether a building permit or zoning approval is required¹.

Sanitation is a separate question from land use. South Dakota allows a vault privy, chemical toilet, incinerator toilet or composting unit where water or electrical service is unavailable, but every listed unconventional option except a vault privy is treated as experimental and needs state approval of plans and specifications before installation¹¹. That state sanitation pathway does not establish permission to occupy an RV or tiny home on a particular Aurora County parcel¹¹.

1. Call the Aurora County Department of Equalization to confirm jurisdiction, zoning status and whether the proposed house needs a county building permit¹.
2. Ask the office for the current application, drawing requirements, fees, inspections and approval sequence because the published process provides only a call-for-information instruction¹.
3. Have the homesite evaluated for wastewater feasibility and confirm the review path with South Dakota DANR before installation².
4. Determine whether the proposed water use needs a state water-right permit before drilling a well⁵.
5. Obtain the required state plumbing certificate and inspections unless a city administers its own plumbing-inspection program⁷.
6. Arrange electrical permitting and inspections; a qualifying resident owner may do personal wiring under the owner exemption, but still needs a homeowner permit and inspections⁴.
7. Obtain South Dakota DOT permission before constructing access to a state highway¹².

Confirm jurisdiction, zoning status, the building-permit path, legal access and wastewater feasibility before making the purchase unconditional. Aurora County's office handles permit and zoning questions, but its public listing does not supply the parcel-level rules or full application process¹. Only about 5.2% of county soils are rated without severe limitations for a conventional septic drain field, making a site evaluation especially valuable¹⁰.

Ask DANR whether the planned well use needs a water-right permit before drilling; domestic use within the state thresholds can be exempt, while larger or listed uses require a permit¹³. If the driveway meets a state highway, state permission is required before access construction begins¹². Check whether the homesite lies in a regulated floodplain because participating South Dakota communities require permits for floodplain development, although Aurora County's administrator and local procedure could not be confirmed¹⁴. Aurora County's effective property-tax rate is about 1.1%, with a median annual bill of about $1,393¹⁰.