5 county-level rules, plus city-specific rules for 1 city in Douglas County, Nebraska.
Verified from official government sources
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.
Sheds and accessory buildings in unincorporated Douglas County must comply with DCZR setback requirements. Building permits may be required for larger structures.
Garage conversions in unincorporated Douglas County require building permits and must meet IRC habitability standards. Parking minimums per the DCZR must still be maintained.
Omaha requires a building permit for carports regardless of size. Side and rear setbacks generally match the accessory-structure standard (5 ft). Lot coverage limits apply under Omaha zoning Chapter 55.
Foundation-built tiny homes in Douglas County must meet IRC 2018 with Appendix Q for dwellings under 400 sq ft. Tiny homes on wheels are treated as RVs and cannot be permanent dwellings except in licensed RV parks. Omaha Ordinance 43728 (2024) expanded ADU allowances.
1 cities in Douglas County have their own accessory structures rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Douglas County — parking, noise, fences, fires, animals, pools, and more.
Douglas County Ordinance Hub →