ADU rules in Douglas County, NE — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
ADUs in unincorporated Douglas County are subject to the Douglas County Zoning Resolution. No statewide ADU mandate exists in Nebraska. Zone district and lot size requirements apply.
Nebraska has no statewide ADU mandate. In unincorporated Douglas County, whether an ADU is permitted depends on the zone district under the DCZR. Some residential zone districts may allow ADUs or secondary dwelling units as accessory uses, while others may restrict them. Building permits are required. ADUs must meet county building codes (IRC). Contact Douglas County Environmental Services or Planning for current rules in your specific zone district.
ADUs built without permits or in incompatible zones are zoning and building code violations.
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See how Douglas County's adu rules rules stack up against other locations.
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