New Orleans Zoning & Permits

Can I build an ADU (accessory dwelling unit) in New Orleans?

Yes. New Orleans allows ADUs (accessory dwellings/carriage houses) in residential zones under the Comprehensive Zoning Ordinance (CZO). Detached ADUs are limited to 750 sqft in most residential zones. Properties in historic overlay districts require review from either the Vieux Carré Commission (French Quarter) or the Historic District Landmarks Commission (HDLC) before permits are issued. Flood elevation requirements can significantly affect ADU design and cost since much of New Orleans is below sea level.

Are Airbnb and short-term rentals legal in New Orleans?

Short-term rentals are legal in New Orleans with a permit ($150/year), but the regulatory environment is subject to ongoing change. IMPORTANT: New Orleans STR rules have been revised multiple times through City Council action and legal challenges — verify current requirements before listing. Residential STR permits generally require the property to be the operator's primary residence. Commercial STR permits are available in commercial and mixed-use zones. New Orleans collects Hotel Occupancy Tax on STR rentals.

What is Orleans Parish and how does it differ from New Orleans?

Orleans Parish and the City of New Orleans are coterminous — they are the same jurisdiction. Louisiana uses the term 'parish' instead of 'county.' So when you see references to 'Orleans Parish' and 'City of New Orleans,' they refer to the same governmental entity. There is no unincorporated area in Orleans Parish — the entire parish is the city of New Orleans.

Do I need special permits for construction in a New Orleans historic district?

Yes. New Orleans has extensive historic protections. If your property is in the French Quarter, you need a Certificate of Appropriateness from the Vieux Carré Commission. If your property is in the Garden District, Marigny, Bywater, Tremé, Irish Channel, or other designated historic districts, you need a Certificate of Appropriateness from the Historic District Landmarks Commission (HDLC) before any exterior work, additions, or new construction. These approvals must be obtained before applying for a building permit. Both commissions meet regularly and decisions can be appealed.

What should I know about flood zones before building in New Orleans?

Flood zone considerations are critical for any construction in New Orleans. Most of the city is within FEMA Special Flood Hazard Areas and much of it is below sea level. New construction and substantial improvements (exceeding 50% of structure value) typically must be elevated above the Base Flood Elevation (BFE), which adds cost but reduces flood insurance premiums. An elevation certificate from a licensed surveyor is often required. The Army Corps of Engineers levee system provides significant protection, but flood insurance is strongly recommended regardless of zone designation. Contact New Orleans Safety and Permits for the specific BFE requirement for your address.

Can I run a business from my home in New Orleans?

Yes, with limitations. New Orleans CZO allows home occupations that are incidental to the residential use. The business must not attract customer visits, must not require signage, cannot employ non-residents, and must be limited to 25% of the dwelling's floor area. Cottage food businesses (baked goods, jams, candy) are allowed under Louisiana's Cottage Food Law with a $20,000 annual revenue cap. More intensive businesses require commercial zoning or a home occupation variance.