Looking for accessory dwelling unit contractor in New Orleans, LA? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve New Orleans and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

A contractor oversees the physical build, managing the subcontractors, materials, and daily construction progress. They are responsible for making sure the structure is built according to the approved plans and local safety standards. You need a contractor when you have your designs finalized and are ready for the actual building phase to begin. They act as the primary point of contact for all site activity.

Frequently asked in New Orleans

What are the disadvantages of ADUs in New Orleans?

Potential drawbacks include the significant upfront costs and the complex permitting process in New Orleans. You'll also need to consider ongoing maintenance in our humid climate and potential impacts on property taxes. Navigating historic district regulations is also a key challenge.

How much does an ADU cost in Louisiana?

What are the rules for ADUs in Louisiana?

Louisiana has state building codes, but New Orleans has very specific local ordinances regarding ADUs, especially in historic areas. These rules cover everything from setbacks and height to architectural compatibility. It's crucial to work with a contractor who understands these intricate local regulations.

Is an ADU allowed in New Orleans?

Yes, New Orleans allows ADUs, but the rules can be complex, particularly in historic districts where design and materials must be carefully considered. You'll need to ensure your ADU plan meets all city zoning and historic commission requirements. Local experts can guide you through this.

What permits are needed for an ADU in New Orleans?

You'll need building permits, zoning permits, and potentially permits from the Historic District Landmarks Commission if applicable. The city's permitting process can be detailed and require thorough documentation. Experienced New Orleans contractors are familiar with these requirements.

How do I find a contractor for an ADU in New Orleans?

Also serving nearby: Baton Rouge · Mobile · Lafayette · Jackson · Beaumont

All cities in Louisiana →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

364,136residents

2,148per sq mile

8ZIP codes served

Serving all of New Orleans — population 364,136; about 2,148 residents per square mile across 169.5 sq mi. ZIP codes covered include 70112, 70113, 70114, 70115, 70116, 70117, 70118, 70119.

Neighborhoods served in New Orleans: French Quarter, Garden District, Bywater, Marigny, Uptown, Mid-City — and every surrounding area.