ADU rules in Sioux Falls, SD β also called accessory dwelling unit regulations or granny flat ordinances β cover setbacks, owner-occupancy, parking, and permit requirements.
Sioux Falls permits accessory dwelling units (ADUs) in certain residential zones under the revised zoning ordinance. ADUs may be attached to or detached from the primary dwelling and must meet size, setback, and parking requirements.
ADUs are allowed per Article 15.20 of the zoning ordinance. They must be clearly subordinate to the principal dwelling in size. ADUs typically cannot exceed a percentage of the primary dwelling's floor area or a maximum square footage cap. Off-street parking may be required. The property must maintain the appearance of a single-family home. ADUs cannot be sold separately from the main property.
Unpermitted ADUs: fines of $200 to $1,000. Cease-and-desist orders until permits are obtained. Non-compliant ADUs may require modification or removal. Rental without proper approval triggers additional penalties.
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See how Sioux Falls's adu rules rules stack up against other locations.
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