Building permits in Assumption Parish are issued by the Parish Permit Office at 105 Martin Luther King Drive, Napoleonville (985-369-7386, Monday to Friday 8:00 a.m. to 4:00 p.m.), which also handles floodplain management. Plan review and inspections are done by the South Central Planning & Development Commission (SCPDC), the regional code office; the parish’s administrative code places enforcement with the South Central Regional Construction Code Council and its building official. A new house costs $0.45 per square foot today; on September 23, 2026 the Police Jury approved higher fees, including $0.70 per square foot, from January 1, 2027.
What needs a permit in Assumption Parish?
The parish’s administrative code requires a permit from the Parish Permit Office before anyone builds, enlarges or changes the occupancy of a building, or renovates more than half of its work area; owners who want an inspection for a smaller repair can take out a permit voluntarily. The fee schedule adds that all residential renovations need the matching trade permits. The schedule also prices accessory buildings, aluminum patio covers, in-ground pools, mobile homes, whole-house generators, structure elevations, moved houses, signs, fireworks stands, cell towers and commercial re-roofs, and the 2027 schedule adds a $300 residential roofing permit.
No permit needed (parish code)
- Painting, papering, tiling, carpet, cabinets, counter tops and similar finish work
- Retaining walls up to 4 ft high that hold back no surcharge
- Above-ground prefabricated pools under 24 inches deep
- Swings and playground equipment
- Electrical, gas, mechanical and plumbing repairs that do not replace piping or wiring with new material
- Landscaping
Permit needed
- New homes, additions and major renovations
- Accessory buildings and patio covers
- Electrical, mechanical, plumbing and gas work
- Mobile homes and moved houses
- Raising a house (structure elevation)
- Pools, generators, signs and solar systems
- Commercial buildings, renovations and changes of occupancy
State law (R.S. 37:3738, re-enacted by Act 881 of 2026) prevents a parish from enforcing the building code on a detached residential accessory structure of 200 sq ft or less unless it stands in a hurricane-prone region with a design wind speed of 130 mph or more. Assumption’s fee schedule still prices small accessory buildings, so ask the Permit Office before you put up a shed. Under Act 239 of 2025 (now R.S. 37:3737(I), re-enacted by Act 881 of 2026), a parish that issues construction permits must permit and inspect roof construction and reroofing.
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Get a free quote →Who issues building permits in Assumption Parish?
The Parish Permit Office takes applications, issues the permit and, at the end of the job, the Certificate of Occupancy. It sits in the same building as the Office of Emergency Preparedness, directly behind the Parish Administration Office, and its Permit Official is also the parish Floodplain Manager. The administrative code creates the South Central Regional Construction Code Council as the enforcement agency, whose building official reviews the plans, inspects the work and issues a certificate of compliance; in practice the plan review and inspections are done by SCPDC in Houma. In 2026 Police Jury minutes, jurors noted that South Central Planning can enforce building codes on the jury’s behalf, and its final inspection was needed to close a permit on a parish building.
| Office | Contact |
|---|---|
| Parish Permit Office | 105 Martin Luther King Drive, Napoleonville, LA 70390; 985-369-7386; Monday–Friday, 8:00 a.m.–4:00 p.m. |
| Plan review and inspections | South Central Planning & Development Commission, 5058 West Main Street, Houma; 985-851-2900; inspections can be scheduled online in MGO |
| Mobile home installation sticker | Louisiana State Fire Marshal, 225-362-5500 |
Assumption Parish has 19,720 residents (Census 2025 estimate). Its only incorporated place, the Village of Napoleonville, posts SCPDC’s roofing and mobile home handouts on its permits page, and its board’s October 2023 minutes sent a property owner to get “the required permits through South Central Planning” so the inspections could be done. Ask Village Hall (985-369-6365) where to file for a lot inside the village.
Electrical, plumbing, mechanical and gas permits
Electrical, mechanical, plumbing and gas work each takes a trade permit from the Parish Permit Office: $125 per trade with two inspections included, rising to $175 on January 1, 2027. Every residential renovation needs the trade permits that match its scope, and detached structures without walls and moved houses are priced as a building fee plus trade permits. Repairs that do not replace wiring or piping with new material need no permit, but once concealed piping or wiring has to be replaced it counts as new work.
For mobile homes, the parish’s requirements sheet asks for four conductors (two hots, a neutral and a ground) brought into the home, drain lines at a slope of 1/8 to 1/2 inch per foot with clean-outs at the far end, at changes of direction over 45 degrees and where the drain leaves the home, and water lines supported every 4 ft for PVC, 3 ft for CPVC and 32 inches for PEX. An owner who anchors the home himself contacts the State Fire Marshal about the installation sticker.
Not sure this scope needs a permit?
Get a free quote →Assumption Parish permit fees
Fees today follow the 2017 regional schedule from SCPDC that the Permit Office posts. On September 23, 2026 the Police Jury approved the Permit Official’s increases, effective January 1, 2027:
| Project | Fee now | From January 1, 2027 |
|---|---|---|
| New house | $0.45 per sq ft | $0.70 per sq ft |
| Residential accessory building with walls | $0.23 per sq ft ($75 minimum, $500 maximum) | $0.40 per sq ft |
| Detached structure without walls | $75 + trade permits up to 500 sq ft; $200 + trade permits over | Not listed |
| Detached accessory structure with walls | Priced as an accessory building | $125 + trade permit up to 500 sq ft; $300 + trade permit over |
| Aluminum patio cover | $75 | $125 |
| Residential renovation | $25 under $5,000; $100 for $5,000–$10,000; $200 over $10,000 | $150 up to $10,000; $300 over |
| Residential roofing | Not listed | $300 |
| New commercial or institutional building | $0.50 per sq ft ($500 minimum) | $0.90 per sq ft ($750 minimum) |
| Commercial or institutional renovation | $0.25 per sq ft ($500 minimum) | $750 up to $50,000; $1,000 over |
| Electrical, mechanical, plumbing or gas permit | $125 | $175 |
| Mobile home | $150 | $250 |
| Whole-house generator | $200 | $300 |
| In-ground pool | $200 | $400 |
| Raising a structure | $500 | $700 |
| Moving a house | $250 + trade permits | $350 |
| Change of occupancy | $100 | $150 |
| Commercial re-roof | $500 | Not listed |
Rather talk it over?
Call 1-855-478-4290 →On the 2017 schedule each fee includes a set number of inspections (12 for a new house, 25 for a new commercial building, 2 for a trade permit), and every extra inspection costs $75. From 2027 all fees are doubled for work done without a permit. The 2027 list also sets pylon signs at $400, other signs at $200, fireworks stands at $200, a new cell tower at $6,000 and residential solar at $150 plus the electrical permit.
For example, a 2,000 sq ft house permitted in 2026 costs $900 for the building permit; the same house permitted in 2027 costs $1,400, before trade permits.
Plans, review and permit rules
The application must describe the work and the land, give the intended use and the value of the work, include the construction documents and be signed by the owner or an authorized agent. SCPDC reviews the plans against the state code; it reports an average plan review wait of about three days. The approved plans come back with a cover letter written for your site that lists exactly when to call for each inspection, and the letter and approved plans must stay on the job.
An application expires 180 days after filing if it is not pursued, and a permit lapses if work does not start within 180 days or stops for more than 180 days; extensions of up to 180 days can be requested in writing. The permit, or a copy, must stay on site and be visible from the road until the work is finished. Commercial projects also need State Fire Marshal plan review.
Rather not deal with the Assumption Parish building department?
Get a free quote →How to get an Assumption Parish building permit
Inside Napoleonville, ask Village Hall first; everywhere else, start at the Parish Permit Office.
The Permit Official, as Floodplain Manager, confirms the zone and the elevation documents you will need.
File the application with plans and the value of the work at 105 Martin Luther King Drive.
SCPDC reviews the plans and returns them with the inspection cover letter.
Pay the fee for your project type, post the permit where it can be seen from the road and start within 180 days.
Schedule each inspection with SCPDC; after the final, the building official’s certificate of compliance goes to the Permit Office, which issues the Certificate of Occupancy.
Assumption Parish inspections
Inspections are scheduled with SCPDC, by phone or online through its MGO customer portal; have the permit number, the job address and a contact name and number ready. SCPDC says it offers next-day inspections and keeps an inspector on call for after-hours emergencies. Call only when the work is actually ready, because a visit to unfinished work is often marked as a failed inspection and may bring a re-inspection fee.
The parish code requires a foundation inspection before concrete is placed, rough plumbing, mechanical, gas and electrical inspections before anything is covered, then framing, energy and final inspections. A failed inspection does not stop the job: correct the listed items and call for a re-inspection, and do not cover them in the meantime. Skipping a slab inspection can mean paying an engineer or a plumber with a camera to prove the work. Without a permit, utility companies may refuse service and no Certificate of Occupancy is issued.
Local Assumption Parish details
Flood zones: where the site is prone to flooding, the parish code requires a registered design professional’s sealed record of the lowest floor elevation once the floor is placed and before vertical construction continues. The fee schedule prices structure elevation (raising a house) separately: $500 now and $700 from 2027.
Subdivisions: in June 2026 the Police Jury amended Chapter 26 of its code so that a minor subdivision is finished by administrative approval of the plan at the Parish Permit Office.
Mobile homes: the home must be anchored by an installer who puts the installation sticker on it, and the electrical service and sewer or private sewage connection must be complete before inspection.
Want this handled start to finish?
Get a free quote →Annual maintenance permits: a business that employs its own qualified tradespeople can take one $200 annual permit for routine electrical, gas, mechanical and plumbing alterations instead of a permit for each job, and must keep a record of the work.
Louisiana building code
Every Louisiana parish and municipality enforces the state’s Uniform Construction Code (R.S. 37:3737), adopted by the Louisiana Uniform Construction Code Commission: the 2021 International Codes with Louisiana amendments, in force since 1 January 2023, and the 2020 National Electrical Code, with the 2024 codes taking effect on 1 January 2027. A local government may set more stringent requirements only with the Commission’s approval, and the State Fire Marshal reviews plans for fire and life safety on all but one- and two-family dwellings. How the LSUCC works
Official Assumption Parish permitting resources
These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.
- Assumption Parish Permit Office
- 2017 regional fee schedule (from SCPDC)
- Police Jury minutes, September 23, 2026 (2027 permit fees)
- Assumption Parish administrative code: permitting requirements
- Assumption Parish manufactured home requirements
- Assumption Parish inspection FAQs
- South Central Planning & Development Commission code enforcement
- Village of Napoleonville building permits and inspections
- Louisiana Department of Health
- Louisiana Office of State Fire Marshal
- Louisiana Uniform Construction Code Commission
Inspections are where schedules slip.
Get a free quote →Assumption Parish permit FAQs
Who issues building permits in Assumption Parish?
The Parish Permit Office at 105 Martin Luther King Drive, Napoleonville (985-369-7386). SCPDC reviews the plans and inspects the work.
How much is a building permit for a new house?
$0.45 per square foot through December 31, 2026, and $0.70 per square foot from January 1, 2027, plus trade permits of $125 each ($175 from 2027).
Are permit fees going up?
Yes. The Police Jury approved new fees on September 23, 2026, effective January 1, 2027, including $250 for a mobile home, $300 for residential roofing and double fees for work done without a permit.
How do I schedule an inspection?
Through SCPDC, at its main number (985-851-2900) or online in its MGO portal, using your permit number. The cover letter on your approved plans says when each inspection is due.
Do I need a permit to paint or replace cabinets?
No. Painting, papering, tiling, carpet, cabinets, counter tops and similar finish work are exempt under the parish code.
How long is a permit good for?
Work must start within 180 days of issue and cannot stop for more than 180 days, or the permit lapses; written extensions of up to 180 days are possible.
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More Louisiana permitting guides
This guide is provided by Alliance Permitting for general information about Assumption Parish permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.