SD · State directory
South Dakota ADU rules
Official accessory dwelling unit regulations for 17 jurisdictions in South Dakota.
Not sure which city yet?
We have read the ordinances for 17 South Dakota cities and lined them up side by side: detached vs internal, size limits, owner occupancy, and approval process.
Cities
Aberdeen3 sources · verified October 2026Box Elder3 sources · verified October 2026Brookings4 sources · verified October 2026Custer2 sources · verified October 2026Deadwood5 sources · verified October 2026Huron4 sources · verified October 2026Mitchell3 sources · verified October 2026Pierre3 sources · verified October 2026Rapid City3 sources · verified October 2026Sioux Falls5 sources · verified October 2026Spearfish4 sources · verified October 2026Sturgis3 sources · verified October 2026Vermillion3 sources · verified October 2026Watertown2 sources · verified October 2026Yankton3 sources · verified October 2026
Counties & regions
Don't see your South Dakota city?
Tell us which city you need and we'll prioritize adding its official rules to the directory.
Request a cityReady to build?
Planning an ADU in South Dakota?
Tell us about your project and we'll match you with vetted local designers and builders as we bring them online. No cost, no obligation.