Building permits, zoning and septic rules in Armour, South Dakota

At a glance

Building permit

Required from the Armour City Council¹

Building code

City has adopted the Uniform Housing Code for residential buildings⁵

Zoning

Not under the county ordinance; city zoning unconfirmed²

Septic

City permit signed by the City Superintendent, only where city sewer is unavailable⁴³

Septic permit fee

$25 permit and inspection fee⁶

Water and sewer

Connection to city water and sewer required⁷

Who to call

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Do you need a building permit in Armour, South Dakota?

Yes. Inside Armour city limits, anyone who wants to erect, alter, repair or remove a building applies to the City Council for a permit and supplies plans and specifications detailed enough for the Council to judge compliance with the city's building regulations¹. A granted permit is signed by the mayor and the city finance officer, and the city supplies a permit card to display on the property⁸.

The city has also adopted the Uniform Housing Code for the use, occupancy, location and maintenance of residential buildings and structures⁵. We could not confirm a general building-inspection requirement, a certificate of occupancy, or an owner-builder exemption in the city code, so ask city hall before you assume any of them. Electrical work is a separate matter: South Dakota requires an approved homeowner permit before an owner starts wiring work⁹.

Who issues building permits in Armour, and how do you reach them?

The Armour City Council grants building permits, and the city finance office at City Hall handles the paperwork¹. The city's website posts a building permit application on its finance office page¹⁰. Call¹⁰ at (605) 724-2167 or write to PO Box 415, Armour, SD 57313.

Douglas County's Zoning Administrator issues building permits only for unincorporated land, not inside Armour². If your parcel is outside city limits, use the Douglas County page instead.

Does Armour have zoning, and what does it mean for RVs, tiny homes and setbacks?

The Douglas County zoning ordinance expressly excludes the incorporated community of Armour², so its districts and setbacks do not apply to city lots. We could not confirm whether Armour adopts its own zoning districts, and the city code we reviewed publishes no lot-size, setback or height schedule. Nothing here should be read as meaning the city has no rules.

The same gap applies to RV living, tiny homes, manufactured homes and accessory dwellings: we found no city rule on any of them. Ask City Hall at¹⁰ before you park an RV on a lot or place a manufactured or tiny home. The county's camping and setback limits cover only unincorporated land².

How do septic permits and wells work inside Armour?

Armour steers buildings onto city water and sewer. Residential and commercial buildings inside city limits must connect to the city water and sewer system⁷, and building a new well, cistern, privy, septic tank or cesspool in a residential or commercial building after 2004 is unlawful unless city services are deemed unavailable for the property³. The same rule limits new drinking-water wells¹¹.

Where services are unavailable and a private wastewater system is allowed, the owner must first get a written permit signed by the City Superintendent⁴, filed on a city form with a $25 permit and inspection fee¹². Once a city line becomes available, the owner must connect and stop using the private system within 30 days⁷. The state's on-site wastewater rules still set minimum standards¹³; contact¹⁴ for system design questions.

Building a home in Armour: the steps, in order

1. Confirm the parcel is inside Armour city limits; if not, the county rules apply instead².
2. Ask City Hall whether city water and sewer reach the lot, because that decides whether a private septic system or well is even allowed⁷.
3. Apply to the City Council for a building permit with plans and specifications¹.
4. If city sewer is unavailable, get the written septic permit from the City Superintendent before construction starts⁴.
5. Pull the state homeowner electrical permit before wiring begins, and schedule the final electrical inspection before anyone moves in¹⁵.
6. Display the city's building permit card on the property⁸.

What stays with Douglas County, and what to check before you buy in Armour?

Douglas County does not zone, permit or inspect inside Armour²; land outside the city is covered on the Douglas County page. Statewide rules still reach city lots: plumbing installations need a state inspection certificate outside cities that run their own plumbing inspection¹⁶, so ask City Hall which applies.

We could not confirm floodplain rules, driveway or street-access permits, or subdivision rules for land inside the city. Farmland in Douglas County averages about $4,554 per acre¹⁷, and the typical home value is about $125,000¹⁸. Douglas County's effective property tax rate is 1.2%¹⁹.

Watch-outs

• Do not assume city lots follow the Douglas County zoning ordinance; it excludes Armour².
• A private septic tank or well on a city lot is only possible where city services are deemed unavailable, and the owner must connect within 30 days once a city line arrives⁷.
• We could not confirm city rules on zoning districts, RV occupancy, tiny homes, floodplain development or inspections; ask City Hall at¹⁰ before buying.

Sources

1. Armour Code § 150.14, Building Permits (Armour), quoted and re-checked
2. Douglas Zoning updated 3_2024, quoted and re-checked
3. Armour Code § 51.03, Use of Municipal Water and Sewer System Required (Armour), quoted and re-checked
4. Armour Code § 52.06, Private Sewer Permit (Armour), quoted and re-checked
5. Armour Code § 150.02, Adoption of Uniform Code (Armour), quoted and re-checked
6. Armour Code § 52.06, Private Sewer Permit (Armour), quoted and re-checked
7. Armour Code § 51.03, Use of Municipal Water and Sewer System Required (Armour), quoted and re-checked
8. Armour Code § 150.14, Building Permits (Armour), quoted and re-checked
9. South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
10. City of Armour Finance Office (City Hall) (armoursd.com)
11. Armour Code § 51.03, Use of Municipal Water and Sewer System Required (Armour), quoted and re-checked
12. Armour Code § 52.06, Private Sewer Permit (Armour), quoted and re-checked
13. On-Site Wastewater Systems in South Dakota (South Dakota statewide rule), quoted and re-checked
14. South Dakota Department of Agriculture and Natural Resources (danr.sd.gov)
15. South Dakota Electrical Commission - Homeowner Wiring (South Dakota statewide rule), quoted and re-checked
16. South Dakota Plumbing Commission - Inspections (South Dakota statewide rule), quoted and re-checked
17. Farmland value per acre (USDA census): Bolthole Index county data
18. Typical home value (Zillow): Bolthole Index county data
19. Effective property tax rate: Bolthole Index county data

Written October 24, 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.