For land outside its cities, towns and villages, Iberville Parish issues building permits through the Permits & Inspections Department at 58030 Meriam Street, Plaquemine (225-687-5150). Every application is filed online in MGO Connect, the posted schedule charges $125 per $100,000 of construction cost for a new home, and the work must be substantially complete within 2 years.
What needs a parish permit?
The parish’s building permit checklist tells owners to get a permit from the Parish Building Inspector’s Office before starting any construction or remodeling, including homes, commercial buildings, major remodeling and placing a manufactured home. The Permits & Inspections Department lists the permits it issues:
Parish permits
- New construction
- Plumbing, electrical and mechanical work
- Demolition
- Solar panels
- Mobile homes
May also be needed
- Planning Commission site plan approval for buildings over 30,000 sq ft
- Health review for a septic tank or individual treatment plant
- A stormwater plan for more than 1 acre of soil disturbance
- DOTD approval for a driveway on a state or federal highway
Under the parish’s Unified Development Code, no building permit is issued until the land use complies with the code and every Planning Commission approval the project needs has been granted. State law (R.S. 37:3737(I), as re-enacted by Act 881 of 2026) requires a parish that issues permits to permit and inspect roof construction and reroofing, and R.S. 37:3738 bars parishes 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.
Who issues building permits in Iberville Parish?
The Permits & Inspections Department, directed by Benjamin Bello, issues permits, inspects construction and enforces the parish’s FEMA flood zone rules. It also handles complaints about high grass, debris, derelict structures and junk vehicles. The office is open Monday to Thursday from 7:30 a.m. to 5:00 p.m. and Friday from 7:30 to 11:30 a.m.
Short on time to read all of this?
Get a free quote →The parish building inspector also sits as an ex officio member of the Planning Commission, which meets on the second Monday of each month at 5:30 p.m. in the Council Meeting Room on the second floor of the courthouse, 58050 Meriam Street. Iberville Parish has six incorporated places, and they do not all use the parish office:
| Place | Who issues building permits | Contact |
|---|---|---|
| Unincorporated parish | Iberville Parish Permits & Inspections Department | 58030 Meriam Street, Plaquemine; 225-687-5150 |
| Plaquemine | City Inspector Department: building permits, inspections and contractor licences | 58165 Court Street; 225-687-2208; Monday–Thursday 7:00 a.m.–5:30 p.m., closed Fridays |
| St. Gabriel | City of St. Gabriel Building Official, with the city’s own applications and fee ordinances | City Hall, 5035 Iberville Street; 225-642-9600 |
| Maringouin | The town’s permits page names the inspection firm IBTS for building inspections and permits | Town hall 225-625-2630 |
| White Castle | Town building official appointed by the mayor and board of aldermen; the Parish Council’s September 22, 2026 agenda included an agreement for the parish to take over permits and inspections in the town | Town hall 225-545-3012 |
| Grosse Tete | The village website sends permit applicants to West Baton Rouge Parish, which says it issues and inspects residential permits there | 225-336-2434 (West Baton Rouge permit office) |
| Rosedale | The village website links to the Iberville Parish permit department, while West Baton Rouge Parish also says it issues and inspects residential permits there | 225-687-5150 (Iberville) or 225-336-2434 (West Baton Rouge) |
Because the parish and West Baton Rouge Parish both describe a route for Rosedale, call both offices before applying for a Rosedale address.
Not sure this scope needs a permit?
Get a free quote →Applying through MGO Connect
The department accepts only online applications, filed through the MGO Connect customer portal or its mobile app. You must create an account before starting. The parish’s Land Development Application Guide groups its forms as C-1 building permit, C-2 pre-application conference request, C-3 site plan review, C-4 subdivision and C-5 special use permit. A C-2 pre-application conference with the parish is optional and free.
Iberville Parish permit fees
The Planning Commission posts the Unified Development Code’s Appendix B fee schedule, last revised on September 15, 2015, and the department answers fee questions at 225-687-5150. The building permit checklist gives the same residential rate and calls the commercial figure a review fee.
| Item | Fee |
|---|---|
| Building permit, new residential construction | $125 per $100,000 of construction cost |
| Building permit, commercial construction | $0.00125 × construction value, plus any added review fees |
| Building permit, manufactured home | $20 |
| Building permit, relocating a rental | $20 |
| Pre-application conference request (C-2) | No charge |
| Site plan review (C-3) | $250, plus any added review fees |
| Preliminary subdivision plat | $75 plus $10 per lot |
| Variance, waiver, street name change or conditional use | $75 each |
What to submit
Homes
- C-1 application with the plan review fee
- Two sets of residential plans and a PDF copy
- In a flood zone, a proposed elevation certificate from your surveyor; the final certificate is required at close-out
- For a septic tank or treatment plant, Board of Health review (225-687-9021)
- Over 1 acre of disturbed soil, a stormwater pollution prevention plan; over 5 acres, the LDEQ construction stormwater permit
Commercial
- Two sets of plans sealed by a Louisiana architect or civil engineer, plus a PDF
- A mechanical engineer’s seal for 10 tons of air conditioning or more, and an electrical engineer’s seal for a service of 600 amps or more or a 480-volt system
- Local fire department plan approval and the State Fire Marshal’s plan review approval letter
- Planning Commission site plan approval for buildings over 30,000 sq ft
- Public Works approval of any required drainage impact study (225-687-5148)
Rather talk it over?
Call 1-855-478-4290 →How to get an Iberville Parish permit
Use the table above; Plaquemine and St. Gabriel run their own offices.
Look the lot up on the parish’s interactive flood zone map and find out whether the project needs Planning Commission approval first.
The C-2 conference is optional and has no fee.
Upload the C-1 application, plans and any prior approvals.
Call 225-687-5150 if you need the fee for your project before applying.
Ask for the foundation and pre-occupancy inspections, then obtain the certificate of occupancy.
Inspections and occupancy
The Unified Development Code sets two required site inspections. When the foundation preparation is finished, the permit holder asks for an inspection, and within 2 business days the code enforcement officer confirms the foundation is placed where the approved site plan shows it. When construction is finished and before anyone moves in, a second inspection checks the work against the site plan and any Planning Commission conditions, also within 2 business days of the request.
Rather not deal with the Iberville Parish building department?
Get a free quote →A certificate of occupancy is required for all new construction that needs a building permit. Work must be substantially complete within 2 years; the code enforcement officer can grant one 1-year extension if the project has started and complies, and extended performance sureties are then required.
Local Iberville Parish details
Flood zones: the department enforces the parish’s FEMA flood zone rules and publishes an interactive flood zone map. The Unified Development Code requires a new or substantially improved home in a special flood hazard area to have its lowest floor at or above the base flood elevation, certified to the floodplain administrator.
Plaquemine: inside the city, building, electrical and plumbing inspections are done at the foundation, framing and completion stages; each request must come from the contractor, electrician or plumber doing the work, and no inspection is done unless the permit is displayed on site.
Demolition: parish code section 4-18 requires a $25 demolition permit for any building or structure over 220 sq ft, with utility disconnect letters, proof that the sewer line is plugged or the septic tank filled, legal disposal of debris and no burning on site.
Rosedale and Grosse Tete: West Baton Rouge Parish requires all state-licensed contractors and subcontractors to register with its permit office before applying for a permit in Rosedale or Grosse Tete.
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
Want this handled start to finish?
Get a free quote →Official Iberville Parish permit resources
- Iberville Parish Permits & Inspections Department
- MGO Connect customer portal (online permit applications)
- Iberville Parish Land Development Application Guide (C-1 to C-5)
- Appendix B application fee schedule (revised 2015)
- Iberville Parish Unified Development Code
- Iberville Parish Planning Commission
- Iberville Parish Council agenda, September 22, 2026 (White Castle agreement)
- City of Plaquemine City Inspector
- City of St. Gabriel building permit applications
- City of St. Gabriel permit fees
- Town of Maringouin permits
- Town of White Castle Code, Chapter 105: buildings
- West Baton Rouge Parish residential building permits (Rosedale and Grosse Tete)
- Louisiana Department of Health onsite wastewater program
- Act 881 of 2026 (HB 1186), including R.S. 37:3738 on small accessory structures
Inspections are where schedules slip.
Get a free quote →Iberville Parish permit FAQs
Who issues building permits in Iberville Parish?
The parish Permits & Inspections Department (225-687-5150) for unincorporated land. Plaquemine and St. Gabriel run their own offices, Maringouin uses IBTS, and West Baton Rouge Parish says it permits Grosse Tete and Rosedale.
Can I apply in person?
No. The parish department accepts applications only online through MGO Connect, and you need an account first.
How much is a building permit for a new house?
The posted schedule charges $125 per $100,000 of construction cost for new residential construction; call the department to confirm the fee for your project.
How long is a permit good for?
The work must be substantially complete within 2 years, with one possible 1-year extension.
What do I need for a house in a flood zone?
A proposed elevation certificate with the application and the official certificate at close-out; the lowest floor must be at or above the base flood elevation.
How fast are inspections done?
The code requires the foundation and pre-occupancy site inspections within 2 business days of the request.
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More Louisiana permitting guides
This guide is provided by Alliance Permitting for general information about Iberville Parish permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.