Louisiana Building Permits — Complete Guide (2026)
Find, Apply & Track Permits in Cities and Counties Across Louisiana
Louisiana's permit landscape is shaped by its hurricane and flood risk. New Orleans and Baton Rouge lead in volume. Post-Katrina building code reform significantly strengthened requirements, especially for coastal parishes.
How building permits work in Louisiana
Building permit requirements and processing times in Louisiana vary by city and county. Use the links below to apply, check status, schedule inspections and find permit information for your location.
Learn the step-by-step permit process →Not sure where to apply?
Enter your city or address to find your permit office.
Permit costs by type — Louisiana
| Permit Type | Fee Range | Processing Time | Notes |
|---|---|---|---|
| Electrical | $80–$200 | 1–3 days | Licensed electrician required statewide |
| Plumbing | $70–$185 | 1–3 days | Licensed plumber required |
| HVAC / Mechanical | $80–$225 | 1–4 days | AC replacement — very high summer volume |
| Roofing | $100–$300 | 1–3 days | Hurricane-rated materials required in coastal parishes |
| New Construction | $500–$1,500 | 2–6 weeks | Flood zone elevation adds cost |
| Room Addition | $300–$800 | 2–5 weeks | Wind load calculations for coastal areas |
| Pool | $175–$475 | 2–4 weeks | High demand statewide |
| Deck / Patio | $125–$375 | 1–3 weeks | Elevated decks common near coast |
| Fence | $50–$150 | 1–5 days | Wind-rated designs in coastal areas |
| Solar | $80–$225 | 1–4 days | Hurricane mounting standards required |
Major Louisiana cities — apply online
Most Louisiana building permits are issued by cities. Click your city to access the permit portal, apply online, or check permit status.
Permit costs by county — top Louisiana counties
County building departments handle unincorporated areas. Click a county to access its permit portal directly.
How to get a building permit in Louisiana
Identify your parish permitting authority
Louisiana has 64 parishes. New Orleans (LAMA), Baton Rouge, Shreveport, and Jefferson Parish have full online systems. Rural parishes may use the State Fire Marshal.
Check flood zone status
All Louisiana properties should be checked against FEMA flood maps. Construction in flood zones requires elevation certificates and compliance with NFIP requirements.
Submit application with wind zone documentation
Coastal parishes require wind load calculations and product approvals for all structural work. This mirrors Florida's HVHZ requirements.
Pay fees
Louisiana fees are moderate — below coastal states like Florida and California.
Inspections including elevation certificate
New construction in flood zones requires an elevation certificate from a licensed surveyor before final inspection.
ADU permits in Louisiana — what you need to know
🏠 Louisiana ADU-friendly status: No statewide law
Louisiana has no statewide ADU law. New Orleans allows carriage houses and accessory dwelling units in many historic and residential zones. Baton Rouge allows ADUs with conditional use permits. Hurricane-resistant construction requirements add cost and complexity.
Find a licensed Louisiana contractor
Louisiana requires licensed professionals for most permitted work. Always verify a contractor's license before hiring — it protects you and is required for most permit types.
General Contractors
Find pre-screened general contractors for your Louisiana home project. Compare quotes on permitted work.
Find a Contractor →Verify LSLBC License
Verify your contractor holds a valid Louisiana State Licensing Board for Contractors (LSLBC) license before any permitted work begins.
Verify LSLBC License →Electricians & Plumbers
Specialty-licensed electricians and plumbers are required for all permitted electrical and plumbing work in Louisiana.
Learn More →Ready to get started? Browse verified, licensed contractors serving Louisiana homeowners and get free quotes on your project.
🔍 Find a Contractor Near YouFrequently asked questions — Louisiana permits
Disclaimer: HousePermits.com is an independent resource and is not affiliated with any government agency.