Reference & data
Standby generator permitting by Louisiana parish
A standby generator install in South Louisiana almost always needs permits, usually an electrical permit for the transfer switch and a mechanical or gas permit for the fuel line, and in flood zones the unit has to be set above Base Flood Elevation. But which office issues those permits, and what the local rules are, changes from parish to parish. Here is a parish-by-parish reference for the eight parishes we cover.
8
service-area parishes, each with its own permit jurisdiction
2 to 3
permits per install (electrical, gas/mechanical, sometimes a building/pad permit)
City vs. parish
jurisdiction depends on whether your address is inside city limits
Above BFE
the general flood rule: set the unit above Base Flood Elevation in FEMA zones
| Parish (main city) | Permit office / jurisdiction | Permits typically required | Flood-elevation rule | Notes |
|---|---|---|---|---|
| Orleans New Orleans | City of New Orleans, Dept. of Safety & Permits (One Stop Shop). City and parish are consolidated, so the city issues all permits. | Separate electrical permit (transfer switch, wiring) plus a mechanical permit for the gas connection. Building permit may apply to the pad or structural work. | Much of Orleans sits in FEMA high-risk zones. Units are generally set on a pad at or above Base Flood Elevation; below-BFE ground is avoided. | Licensed electrical and mechanical/gas contractors required. Historic districts (Vieux Carre, HDLC) can add design review for visible equipment. |
| East Baton Rouge Baton Rouge | City-Parish Permit & Inspection Division. One consolidated City-Parish office covers Baton Rouge and the parish. | Generator installs are specifically listed as permitted work. Expect an electrical permit and a gas/mechanical permit; building permit for the pad if required. | Post-2016-flood floodplain rules apply. In mapped zones the unit is set above BFE, often on a raised concrete pad. | Licensed electrical and mechanical contractors pull the trade permits. Electrical inspections are handled by the division directly. |
| Lafayette Lafayette | Lafayette Consolidated Government Permitting Division ("one stop shop") at 220 W. Willow St. Covers the City of Lafayette and unincorporated parish. | Electrical and mechanical (gas) permits through the LCG permit center. Building permit may apply to the equipment pad. | Coulee and Vermilion River flooding drive local floodplain review. In mapped zones the unit must sit above BFE. | Licensed trade contractors required. Smaller municipalities in the parish (e.g. Broussard, Youngsville) may run their own permitting. |
| Terrebonne Houma | Terrebonne Parish Consolidated Government Permit Office (myTPCG portal or in person). Consolidated City-Parish government. | Building permit application lists all subs (electrical, gas, mechanical) with license numbers. Trade permits and inspections for electrical and gas. | Coastal/high flood risk. If the site is in the floodplain, an elevation certificate is required at application and again at completion; equipment set above BFE. | Coastal-use permits can be triggered near wetlands. Licensed electrical, gas-fitter and mechanical contractors required. |
| Calcasieu Lake Charles | Inside the city: City of Lake Charles Permit Center. Unincorporated parish: Calcasieu Parish Police Jury, Planning & Development permit office. | Separate building, electrical, mechanical and plumbing permits as applicable. Confirm which office based on whether the address is inside city limits. | Hurricane Laura/Delta rebuild scrutiny plus coastal flood zones. In mapped zones the unit is set above BFE. | City vs. parish jurisdiction is the key question here. Licensed trade contractors required for each permit. |
| St. Tammany Slidell | Inside Slidell: City of Slidell Building Safety & Permits. Unincorporated Northshore: St. Tammany Parish Permits & Inspections (Koop Dr., Mandeville). | Parish has a dedicated generator permit packet. Inspections cover electrical final, CO detectors, and verifying placement meets setback/distance rules. | Drainage, floodplain and fill can independently trigger review in the unincorporated parish. Mapped-zone units set above BFE. | Incorporated Slidell permits separately from the parish. Confirm which jurisdiction your address falls under before starting. |
| Tangipahoa Hammond | Tangipahoa Parish Permit Office (Hammond, W. Club Deluxe Rd.). Handles building/electrical permits, inspections and floodplain management. | Building permit required before work; all subs (electrical, mechanical, plumbing) must pull their own permits on new work. | Flood determination is part of the building-permit application; floodplain management is handled in-office. Mapped-zone units set above BFE. | City of Hammond may run separate permitting inside city limits. Licensed trade contractors required. |
| Iberia New Iberia | Iberia Parish Government Permit Office (715-A Weldon St., New Iberia), led by a Certified Floodplain Manager. | Enforces the LA State Uniform Construction Code with 2020 NEC and 2021 IMC. Electrical and mechanical permits apply; building permit for the pad. | Office helps determine flood elevations and enforces flood-zone ordinances. In mapped zones the unit is set above BFE. | City of New Iberia has its own Inspection & Permits department for addresses inside city limits. Licensed trade contractors required. |
Figures compiled from parish and city permit offices (New Orleans Safety & Permits, EBR City-Parish Permit & Inspection, Lafayette Consolidated Government, Terrebonne Parish Consolidated Government, Calcasieu Parish Police Jury and City of Lake Charles, St. Tammany Parish and City of Slidell, Tangipahoa Parish, and Iberia Parish Government) and FEMA flood maps. Permit requirements, jurisdiction lines, and adopted code editions change; confirm current rules with the office before you rely on them, and note that exact fees are set locally and are not listed here. Journalists and researchers are welcome to cite this page with attribution; figures are compiled from parish permit offices and FEMA flood maps.
Why permitting varies so much by parish
Louisiana is one of a handful of states organized into parishes rather than counties, and several of the parishes here (Orleans, East Baton Rouge, Lafayette, Terrebonne) run consolidated city-parish governments where a single office issues every permit. Others split the work: the parish permit office covers unincorporated areas, while incorporated cities such as Slidell, Hammond, Lake Charles, and New Iberia run their own building-safety departments. The first question on any generator install is therefore which jurisdiction the address actually falls under, because it decides which office issues the permit, which inspectors show up, and which code edition applies.
Flood rules add a second layer. Most of South Louisiana sits in FEMA-mapped high-risk flood zones, and in those zones a permanently installed generator generally has to sit on a pad at or above Base Flood Elevation rather than on low ground where floodwater would reach it. Coastal parishes such as Terrebonne and Calcasieu can require elevation certificates, and drainage or fill issues can trigger separate review even when the electrical work is straightforward.
This is where a local installer earns their keep. A licensed contractor who pulls permits in these parishes every week knows which office to file with, how each one wants the flood elevation documented, and how to schedule the electrical and gas inspections so the job passes the first time. Bayou Generators is a resource that connects South Louisiana homeowners with one vetted, licensed local installer who handles that permitting rather than leaving it to the homeowner.
Ready to talk to a licensed local installer who pulls these permits? Start on the South Louisiana hub, see the generator installation service, or read your city page for New Orleans, Baton Rouge, or Lafayette.
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