Accessory Structures in Sioux Falls, SD (2026)
9 verified accessory structures rules for Sioux Falls, South Dakota, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Sioux Falls allows one accessory dwelling unit (ADU) per single-family lot under § 160.093 of the city zoning code. One of the two units must be owner-occupied, and a detached ADU is capped at 40% of the main structure's square footage.
Accessory Dwelling Units in Sioux Falls
Some RestrictionsADU Permits
Constructing an ADU in Sioux Falls requires a standard building permit from Building Services. Permit fees are based on the project's construction valuation under the city fee schedule; no separate ADU-specific permit type exists.
ADU Building Permit Requirements in Sioux Falls
Some RestrictionsADU Impact Fees
Sioux Falls does not levy a separate ADU impact fee. South Dakota does not have a statewide development-impact-fee enabling statute, and Sioux Falls funds infrastructure through general permit valuation fees, water/sewer connection fees, and the municipal sales tax (SDCL Chapter 10-52).
ADU Impact Fees in Sioux Falls
Few RestrictionsADU Owner Occupancy
Sioux Falls Code § 160.093 requires that one of the two dwelling units on an ADU lot be owner-occupied. Both units cannot be simultaneously rented to non-owner tenants.
ADU Owner-Occupancy Requirement in Sioux Falls
Heavy RestrictionsADU Rental Restrictions
An ADU may be rented in Sioux Falls but the unit must be registered under the citywide residential rental permit program (§ 150.177), effective January 1, 2024. Short-term rentals (under 30 days) face additional state lodging-license and sales-tax requirements.
Renting an ADU in Sioux Falls
Some RestrictionsShed Rules
Sioux Falls requires a permit for every shed regardless of size. Sheds 200 sq ft or less get a simplified zoning placement permit; sheds over 200 sq ft must meet full residential building code. In rear yards more than 10 ft from the house, sheds can sit as close as 2 ft from the side/rear property line under Sioux Falls Code Title 16 (§160.093 Accessory Uses).
Shed Rules in Sioux Falls
Some RestrictionsGarage Conversions
Converting a garage into livable space in Sioux Falls requires a building permit and triggers the city's Accessory Dwelling Unit (ADU) rules under Code § 159.305 if you create an independent dwelling unit. ADUs are limited to 75% of the primary home's floor area (attached) or 50% (detached), require 2 extra off-street parking spaces, and demand owner-occupancy of either the main home or the ADU.
Garage Conversion Rules in Sioux Falls
Some RestrictionsCarport Rules
Carports in Sioux Falls require a building permit and are regulated as accessory structures under Code § 160.093. They are prohibited in the required front-yard setback and must meet the same side/rear setbacks as detached garages. Carports cannot replace required enclosed garage parking in zones that mandate it and must be permanently anchored.
Carport Rules in Sioux Falls
Some RestrictionsTiny Homes
Sioux Falls allows tiny homes (under 400 sq ft) on permanent foundations only as Accessory Dwelling Units (ADUs) under Code § 159.305, subject to ADU size caps, parking, and owner-occupancy rules. The city follows IRC Appendix Q (adopted with the 2021 IRC under Title 150). Tiny homes on wheels (THOWs) are treated as recreational vehicles and cannot be used as permanent dwellings on residential lots.
Tiny Home Rules in Sioux Falls
Some RestrictionsLooking for Minnehaha County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Sioux Falls city rules.
Accessory Structures in Minnehaha County →