Jefferson Davis Parish, Louisiana requires a permit for construction, additions, remodeling and moving a manufactured home or other structure onto property1. Apply through the Jefferson Davis Parish Police Jury Permit Office in Jennings1. Louisiana permits individual sewerage systems through the state health officer, while the Jefferson Davis Parish Health Unit offers Environmental Health services locally23.
At a glance
- Building permit
- Required for construction, additions, remodeling and moved structures1
- Building inspections
- Required under statewide code enforcement4
- Zoning
- Zoning exists, but parish-wide coverage is unconfirmed5
- Septic permits
- Issued under Louisiana Department of Health authority2
- Owner-builder
- Available for a qualifying personal primary residence with an affidavit6
- RV and tiny-home living
- Local private-land occupancy rules are unconfirmed; ask the Permit Office5
- Septic soil suitability
- 0% of mapped soils rate without severe limits for conventional drain fields7
- Water wells
- A licensed driller and state registration are required for new wells8
Who to call
Building permits
Jefferson Davis Parish Police Jury Permit Office
Building permits and applications, code compliance, permit fees, flood-damage prevention and coastal-zone review
321 East Plaquemine St, Jennings, LA
Septic permits
Jefferson Davis Parish Health Unit
Local Environmental Health contact for Louisiana Department of Health services, including questions about individual sewerage systems
403 Baker Street, Jennings, LA 70546
Roads & driveways
Jefferson Davis Parish Road Department
Questions and concerns about parish roads and bridges
Contact details are copied from each office’s official page and were checked against it on September 28, 2026.
Do you need a building permit in Jefferson Davis Parish, Louisiana?
Yes. Jefferson Davis Parish says anyone planning construction, an addition or remodeling, or moving a manufactured home or another structure onto property must obtain a permit1. Louisiana's residential-code mandate covers new construction, reconstruction, additions to homes previously built to the residential code and extensive alterations9. Required inspections must be performed by a building-code enforcement officer or certified third-party provider, with the inspector on site except for roofing inspections4. Farmers should not confuse Louisiana's agricultural contractor-licensing exemption with a permit exemption; it does not waive building, health, life-safety or septic requirements10.
Who issues Jefferson Davis Parish building permits, and how do you reach them?
The Jefferson Davis Parish Police Jury Permit Office takes applications at 321 East Plaquemine Street in Jennings1. Send application questions or submissions to [email protected], or call the Police Jury at 337-824-47921. The official permit page provides residential and commercial applications, instructions for mobile homes, pole barns, renovations, sheds, portable buildings used as dwellings and other common projects1. Permit fees apply, and the office says payment may be made by personal check or money order1. Ask for the current fee schedule and confirm which reviews and inspections apply to your exact project before ordering materials.
Does Jefferson Davis Parish have zoning?
Jefferson Davis Parish has zoning provisions and a Zoning Commission, but we could not confirm that zoning covers every part of the parish5. Louisiana law allows parish zoning districts and lets district rules vary, so a general statement that zoning exists does not answer what a particular parcel permits11. Minimum dwelling size, setbacks, lot coverage and building height can depend on the applicable local district rather than a statewide number12131415. Ask the Permit Office to identify the governing jurisdiction and zoning district before relying on a listing's claim that land is unrestricted1.
How do septic permits work in Jefferson Davis Parish?
Louisiana, rather than Jefferson Davis Parish, controls permits for individual sewerage systems through the state health officer2. A state permit and approved plans are required before installing, altering or operating an individual sewerage system16. A septic tank system is an option only where community sewer is unavailable and the code requirements are met17. This deserves early attention because 0% of mapped parish soils rate without severe limitations for a conventional drain field7. Final approval requires compliance verification through a state representative's on-site inspection, an installer certification, or both18. Start with Environmental Health at the Jefferson Davis Parish Health Unit in Jennings3.
Can you live in an RV or tiny home in Jefferson Davis Parish?
Jefferson Davis Parish's rules for long-term RV occupancy on private land and tiny-home occupancy could not be confirmed. The parcel's jurisdiction and any applicable zoning district matter because Louisiana leaves many dimensional and land-use decisions to local rules11. State-park camping limits do not answer whether someone may occupy an RV on private land19. A portable building intended as a residence appears among the Permit Office's published application topics, so discuss the structure and intended occupancy with that office before purchase or placement1. Also confirm sewer availability and the required state-approved wastewater system; off-grid sanitation is limited and still requires state approval20.
Building a home in Jefferson Davis Parish: the steps, in order
- Ask the Permit Office which jurisdiction and zoning district govern the parcel, and confirm setbacks, dwelling type and flood or coastal review before finalizing plans15.
- If community sewer is unavailable, contact Environmental Health at the Jefferson Davis Parish Health Unit for the state septic permit and approved plans316.
- For a new well, use a licensed water-well contractor and follow the applicable state notification and registration process8.
- Apply to the Police Jury Permit Office with the correct residential instructions and pay the applicable fee1.
- Arrange required code inspections through the building official or certified provider4.
- Obtain final wastewater approval before operating the system18.
What should you check before buying land in Jefferson Davis Parish?
Start with wastewater and flood constraints. Conventional drain-field conditions rate poorly across the mapped soils, and an individual system is available only when community sewer is unavailable and state requirements are satisfied717. The parish follows a flood-damage prevention ordinance and a coastal-zone program, so ask the Permit Office what review applies to the parcel1. For access, call the Road Department about parish-road conditions; a connection to a Louisiana state highway requires a separate state access permit before construction2122. Typical farmland value is about $2,980 per acre, while the effective property-tax rate is about 0.3% and the median annual property-tax bill is about $409232425.
Watch-outs
- Do not treat an owner-builder affidavit as a permit waiver: the exemption concerns contractor licensing, while building, health and life-safety requirements still apply6.
- Jefferson Davis Parish's parish-wide zoning coverage, RV occupancy rules, tiny-home rules, setbacks and minimum dwelling size remain unconfirmed; ask the Permit Office which rules apply to the parcel51.
- The Police Jury's permit-page address differs from its general contact address; use 321 East Plaquemine Street for an in-person permit application1.
- A driveway connecting to a state highway needs a signed and numbered Louisiana Department of Transportation and Development access permit before construction begins22.
Sources
- Jefferson Davis Parish Police Jury Permit Office (jdppj.net)
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Jefferson Davis Parish Health Unit (ldh.la.gov)
- State of Louisiana Uniform Construction Code Law and Rules and Regulations, quoted and re-checked
- Jefferson Davis Parish Police Jury Code of Ordinances (Municode) (2026 county census)
- FAQ – Louisiana State Licensing Board for Contractors, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Louisiana Administrative Code, Title 43, Part VI, §701 (Louisiana statewide rule), quoted and re-checked
- State of Louisiana Uniform Construction Code Law and Rules and Regulations, quoted and re-checked
- Louisiana Revised Statutes 37:2157, quoted and re-checked
- Louisiana Laws — creation of parish zoning districts (Louisiana statewide rule), quoted and re-checked
- RS 33:4721 — Regulation of size and use of buildings (Louisiana statewide rule), quoted and re-checked
- RS 33:4721 — Regulation of size and use of buildings (Louisiana statewide rule), quoted and re-checked
- RS 33:4721 — Regulation of size and use of buildings (Louisiana statewide rule), quoted and re-checked
- RS 33:4721 — Regulation of size and use of buildings (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Louisiana Office of State Parks Policy and Procedure Memorandum #6 — Reservation Changes and Refunds (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Jefferson Davis Parish Road Department (jdppj.net)
- LaDOTD Access Connections Policy (Louisiana statewide rule), quoted and re-checked
- Farmland value per acre (USDA census): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 28, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.