St. Martin Parish, Louisiana Building Permit Guide

Building permits for unincorporated St. Martin Parish are handled by the parish government’s Building Permits Department at 303 West Port Street in St. Martinville ((337) 394-9816), which issues building, electrical and sewer permits. Applications can be submitted online through the parish’s iWorQ permit portal, and all construction inspections are carried out by Building Code Inspection Services, LLC, a third-party provider under contract to the parish. St. Martin is not contiguous: it exists as two separate pieces divided by Iberia Parish, and much of it lies in or against the Atchafalaya Basin.

This guide covers the department and how to reach it, the local conditions that shape a filing here, what permits cost and who may pull them, and how inspections are booked. Rules that apply everywhere in Louisiana are summarized in each section, with a link to the full statewide explanation.

This guide covers unincorporated St. Martin Parish, in both of its separate sections. Breaux Bridge, St. Martinville, Parks and Henderson permit separately.

What requires a building permit in St. Martin Parish?

Under the LSUCC as administered by the parish, a permit is required before most construction, alteration, demolition, repair, relocation, change of occupancy and trade work begins in unincorporated territory.

Exemptions are narrow and local, and an exemption from a building permit is not an exemption from zoning, setbacks, floodplain rules, utility approval or a fire authority review. Confirm scope with the department before work starts rather than after.

Which code edition applies

St. Martin Parish enforces the statewide LSUCC, as do the municipalities inside it. The technical requirements are uniform across both sections of the parish and across every boundary within it. What differs is the fee schedule, the submittal process, inspection scheduling and the flood and drainage position for the specific parcel.

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

Who handles permitting in St. Martin Parish?

The parish handles permitting for unincorporated territory in both sections from St. Martinville. Breaux Bridge, St. Martinville, Parks and Henderson each permit their own limits.

St. Martin Parish is not governed by a police jury. It has a parish president and a parish council: the council is the legislative body that adopts local requirements, and the president is the chief administrative officer over the parish departments, including the Building Permits Department. Construction inspections are not done by parish staff but by Building Code Inspection Services, LLC, under contract to the parish, so ask the department how to book them for your permit.

The non-contiguous geography has a practical consequence worth planning for: travel between the two sections of the parish means passing through another parish entirely, so inspection scheduling and any office visit should account for real distance. Permit applications can be submitted through the parish’s iWorQ permit portal, which saves a trip to St. Martinville.

Louisiana’s counties are parishes, governed by a police jury or a home rule charter government, and some large communities, such as Metairie, have no city government and are permitted by the parish. The state sets the code and licenses contractors; the local authority sets fees, submittal requirements, review times, inspections, zoning, floodplain administration and local registration. What the state and the parish each decide

Permit types

Residential permits

Residential work is largely rural and small-community construction, with subdivision development around Breaux Bridge in the Lafayette orbit. Flood and drainage position govern feasibility on basin-adjacent parcels, and private water, onsite sewage, access and address assignment decide it further out. New addresses come from the parish 911 Center (4870 Main Highway, St. Martinville, (337) 394-2800), and new or updated sewer systems go through the Office of Public Health at 303 Port Street, St. Martinville ((337) 394-6134).

Commercial permits

Commercial development includes corridor retail and service, agricultural and seafood processing, and tourism activity associated with the basin and the historic communities. Larger projects bring drainage, access, utility and fire review alongside the building set. The State Fire Marshal reviews commercial plans for life safety; St. Martin Parish is not one of the jurisdictions whose building-code plan review the State Fire Marshal performs under contract, so confirm with the Building Permits Department how building-code review is handled for your project.

Flood elevation and wind design decide most Louisiana projects: in a FEMA Special Flood Hazard Area, base flood elevation, flood-resistant construction and the substantial-improvement rules apply; the state code’s wind provisions include wind-borne debris requirements in wind-borne debris regions; and elevation certificates are permit documents that can delay the certificate of occupancy. Flood, elevation and wind in Louisiana

St. Martin Parish permit costs and fees

St. Martin Parish permit fees are set by ordinance (Ord. No. 22-06-1358-OR), published as the Permit Fee Schedule on the Building Permits Department page. The municipalities inside the parish maintain their own schedules.

Fee schedules are revised on each jurisdiction’s own cycle, so ask St. Martin Parish for the schedule in force on your filing date, and ask separately about plan review, trade, re-inspection and revision charges. How Louisiana permit fees work

Trade permits and who may pull them

The Louisiana State Licensing Board for Contractors requires a commercial licence for projects of $50,000 or more, a residential licence for a new house or duplex of $50,000 or more, a home improvement licence for residential improvement work of $7,500 to under $50,000, and a licence for electrical, mechanical and plumbing work of $10,000 or more. Since 1 January 2026 residential roofing of $7,500 or more needs a roofing or residential licence, and plumbers are also licensed by the State Plumbing Board of Louisiana until its duties pass to the contractor board on 1 January 2027. Contractor licensing in Louisiana

How to apply for a St. Martin Parish building permit

In Louisiana the approvals that sit ahead of the building permit, such as historic or design review, zoning and subdivision, most often decide timing. Before filing, ask St. Martin Parish for the current review turnaround, which bodies review commercial plans (the State Fire Marshal and the local authority or its contracted reviewer), and which approvals must be in hand first. Approvals and corrections in Louisiana

Inspections in St. Martin Parish

Standard checkpoints include footing and foundation, framing, rough-in electrical, plumbing and mechanical, insulation and final, with a certificate of occupancy required before legal occupancy or use. Rural parcels add onsite sewage verification, and flood-zone parcels add elevation verification.

Do not cover work before the required inspection has been approved. Keep the issued permit, the approved plans, energy documentation, product listings, special-inspection reports and your correction responses available on site.

Plan framing, sheathing and roofing inspections so that wind-resistive connections and opening protection can be seen before they are covered, have elevation verified at the required stages, and keep product approvals and elevation documentation on site. Inspections in Louisiana

St. Martin Parish permit search and official resources

Permit records sit with the authority that issued them. In Louisiana that is usually straightforward, because the LSUCC has applied statewide since 2023 and the permitting authority for a given parcel is generally stable — but records predating the statewide code, or predating a municipal incorporation or annexation, may sit elsewhere. If you are buying, refinancing or renovating, ask the St. Martin Parish Building Permits Department what it holds for the parcel and whether any permit was closed without a final inspection.

On flood-exposed property the record question is sharper than usual. Prior elevation certificates, floodplain determinations and any history of substantial damage or improvement all bear on what a new project will be required to do, and they are worth obtaining before design rather than during review.

These are the primary sources behind this guide. Codes, fee schedules and portal procedures change, and in Louisiana a jurisdiction’s own published packet can lag a code change by months — the adopted ordinance governs, not an un-updated handout. Confirm the position for your filing date.

• St. Martin Parish Government
• Louisiana Uniform Construction Code Commission
• Louisiana Office of State Fire Marshal
• Louisiana State Licensing Board for Contractors

Frequently asked questions

Is St. Martin Parish really in two pieces?

Yes. The parish is non-contiguous, existing as two separate sections divided by Iberia Parish. Both are administered by the same parish government, but site conditions and travel logistics differ substantially between them.

What does the Atchafalaya Basin mean for my project?

It is a managed floodway rather than simply wet ground. Land in and adjacent to it carries backwater flooding, levee and floodway considerations that must be established from the effective mapping before design.

Does the parish permit inside Breaux Bridge?

No. Breaux Bridge, St. Martinville, Parks and Henderson each permit their own limits.

Can this jurisdiction impose stricter requirements than the state code?

Only with the state’s approval. Parishes and municipalities must enforce only the Uniform Construction Code (R.S. 37:3737), but a local government that finds the state minimum standards do not meet its needs may set more stringent requirements with the approval of the Louisiana Uniform Construction Code Commission (R.S. 37:3748). What does vary locally is zoning, flood and elevation requirements, historic review, fees, portals and inspection scheduling.

Who reviews my commercial drawings?

On commercial work, usually both. The Office of State Fire Marshal reviews plans for fire and life safety on every building except one- and two-family dwellings (R.S. 40:1574), and the local authority, or a reviewer it contracts with, reviews against the Uniform Construction Code. Establish both routes before you submit.

What licence does my contractor need?

A Louisiana State Licensing Board for Contractors credential in the right classification. A commercial licence is required at $50,000 or more, a residential licence for a new house or duplex of $50,000 or more, and a home improvement licence for residential improvement work of $7,500 to under $50,000. Electrical, mechanical and plumbing contractors need a licence for work of $10,000 or more, residential or commercial (R.S. 37:2150.1).

Simplify St. Martin Parish permitting with Alliance Permitting

St. Martin is administered as one parish and experienced as two, with a managed floodway running through the middle of the picture. Establishing the section and the basin position comes before anything else.

Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.

Contractors and builders choose Alliance for St. Martin Parish because the work is done by people who have stood at the counter:

• We establish which section of the parish holds the parcel.
• We establish basin, floodway and backwater flood position from the effective mapping.
• We confirm parish versus municipal jurisdiction.
• We plan office visits and inspections around genuine travel distance.
• We front-load rural water, sewage, access and address work.

Alliance Permitting is a permit documentation and submission company in Louisiana. We prepare your paperwork, file it correctly and coordinate with the building department through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about St. Martin Parish permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.