Louisiana permit requirements
We have read and dated 20 permit rules across 2 jurisdictions in Louisiana. On every measurement where two or more of them publish a comparable number, they land on the same one: deck at 200 sq ft.
- Jurisdictions
- 2
- Verified rules
- 20
- Permit always required
- 10
- Depends on the project
- 10
Do Louisiana jurisdictions agree?
Every row below is a measurement at least two Louisiana jurisdictions publish, compared against each other. This is the question a statewide answer cannot settle, because the number that governs your project is the one your own city or county publishes.
| Project | Published threshold | Jurisdictions | Agreement |
|---|---|---|---|
| Deck | 200 sq ft | 2 | Same number in all 2 |
1 of 1 comparable measurements are uniform across Louisiana; 0 are not. Latest verification 2026-08-16.
Where Louisiana jurisdictions split
The verdict for each project across the 2 Louisiana jurisdictions we cover. On 8 of 10 projects they do not give the same answer, which is why a statewide answer is not one.
| Project | Permit required | Depends | No permit | Across the state |
|---|---|---|---|---|
| Electrical | 1 | 1 | Answer varies | |
| Fence | 1 | 1 | Answer varies | |
| HVAC | 1 | 1 | Answer varies | |
| Patio | 1 | 1 | Answer varies | |
| Plumbing | 1 | 1 | Answer varies | |
| Pool | 1 | 1 | Answer varies | |
| Roof Replacement | 1 | 1 | Answer varies | |
| Shed | 1 | 1 | Answer varies | |
| Deck | 2 | Same answer everywhere | ||
| Solar | 2 | Same answer everywhere |
Building without a permit in Louisiana
Louisiana sets no statewide fine or jail term for building without a permit. The Louisiana State Uniform Construction Code adopts the international codes but expressly omits their administrative parts, and those are the chapters that create the permit requirement, so both the duty to pull a permit and the money penalty for skipping it come from parish or municipal ordinance.
Penalties, the as-built path, and what the statute actually says
What you can build without a permit in Louisiana
0 of the 20 answered rules across Louisiana need no permit at all and 10 turn on a size or scope condition the jurisdiction publishes, by project and jurisdiction, in each office's own words.
What each Louisiana jurisdiction publishes
One line per jurisdiction, written from its own rules rather than from a state summary. This is the section that used to be a list of links, and the states with the fewest jurisdictions to compare are the ones it says the most about.
- Baton Rouge 10 rules
4 of 10 projects always need a permit and 6 turn on the size or scope of the work. Published thresholds include deck at 200 sq ft and pool at 24 inches.
- New Orleans 10 rules
6 of 10 projects always need a permit and 4 turn on the size or scope of the work. The ones that depend on the project are deck, fence, patio and roof replacement. Published thresholds include deck at 200 sq ft and fence at 7 feet.