ADU Permit Steps - New Orleans City Guide

Housing and Building Standards Louisiana 3 Minutes Read ยท published February 09, 2026 Flag of Louisiana

Building an accessory dwelling unit (ADU) in New Orleans, Louisiana requires navigating local zoning, building and permit rules. This guide walks property owners through the typical permit steps, where to check zoning and code requirements, who enforces ADU rules, and how to prepare applications. It focuses on city-level procedures for ADUs and points to the official permit and ordinances pages for forms and legal authority so you can begin with the correct documents and departmental contacts.

Permits and zoning checks

Before construction, confirm zoning allowance, lot coverage and setback rules for ADUs under New Orleans zoning. Typical permits and reviews include:

  • Zoning verification or letter of determination.
  • Building permit for structural, electrical and plumbing work.
  • Historic district review if the property is in a preservation area.
  • Inspections during construction and for final occupancy.
Verify your parcel zoning early to avoid application delays.

Application checklist and documents

Prepare the typical application documents to streamline review:

  • Site plan showing lot lines, setbacks and proposed ADU footprint.
  • Construction drawings and structural calculations as required.
  • Proof of ownership or written authorization from owner.
  • Payment for plan review and permit fees, amounts set by the department.

Penalties & Enforcement

Enforcement of ADU-related violations in New Orleans is carried out by the Department of Safety and Permits or other designated city enforcement offices under the city code and building regulations. Specific enforcement procedures and remedies are set out in the municipal code and departmental rules.

Summary of enforcement elements:

  • Fine amounts: not specified on the cited page New Orleans Code of Ordinances[2].
  • Escalation: information on first, repeat or continuing offence penalties is not specified on the cited page New Orleans Code of Ordinances[2].
  • Non-monetary sanctions: stop-work orders, orders to remove unpermitted structures, and court actions are provided for in the municipal code; specific remedies and processes are described in the code New Orleans Code of Ordinances[2].
  • Enforcer and complaints: Department of Safety and Permits handles permits, inspections and code compliance; contact the department for inspections and to file complaints Department of Safety and Permits - Permits[1].
Unpermitted construction can lead to stop-work orders and required removal of the ADU.

Applications & Forms

The primary permit application for structural, electrical and plumbing work is the city building permit submitted to the Department of Safety and Permits; plan review checklists and submission instructions are maintained by that department. Fee amounts and specific form names or numbers are not specified on the cited page Department of Safety and Permits - Permits[1].

How to prepare for review

Practical steps to avoid delays:

  • Confirm zoning and overlay district restrictions before design.
  • Use a licensed design professional for drawings and calculations.
  • Schedule pre-application meetings with the department when available.

FAQ

Do I need a building permit for an ADU?
Yes, a building permit is generally required for structural, electrical or plumbing work on an ADU; check Department of Safety and Permits requirements.
Can I rent an ADU short-term?
Short-term rental rules depend on city licensing and zoning; consult local codes and licensing offices for restrictions.
How long does plan review take?
Plan review times vary by workload and complexity; specific review timeframes are not specified on the cited departmental page.

How-To

  1. Check your parcel zoning and any historic district status.
  2. Prepare site plans and construction drawings with a licensed professional.
  3. Submit plan review and permit applications to the Department of Safety and Permits.
  4. Pay required plan review and permit fees when submitting applications.
  5. Schedule required inspections during construction and obtain final occupancy approval.
  6. If cited for violations, follow the department notice, pay fines if required, and appeal within published time limits if available.

Key Takeaways

  • Confirm zoning and historic status before designing an ADU.
  • Submit full plans to the Department of Safety and Permits for review to avoid stop-work orders.

Help and Support / Resources

  1. [1] City of New Orleans Department of Safety and Permits - Permits
  2. [2] New Orleans Code of Ordinances

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