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When a permit is required
Permit triggers and exempt work for Hahnville
Permits are required for new construction of primary and accessory structures, additions, mobile home placement, swimming pool installations, and non-construction items such as home occupations, taxi services, commercial signs, and changes of use or occupancy for existing commercial buildings.
Note: The reviewed parish pages do not publish a formal exemption list. Work outside the categories above may not require a permit and should be confirmed with Planning and Zoning before work starts.
- Copy of deed
- Survey with grade certificate
- Site plan approved by the Senior Permit Coordinator
- Two sets of paper construction plans (11 x 17 minimum) plus a digital copy
- Drainage plan drawn on the site plan
- Levee district approval letter when within 1500 feet of the levee
- Sanitary facility vendor contract
- Construction debris removal contract
- Water and sewer permits
- Louisiana Department of Health sewer approval letter when applicable
- Building code
- The parish indicates compliance with the International Building Code and South Central Planning and Development materials reference the IBC and IRC 2021.
- Owner-builder
- Louisiana law allows an owner to build a primary residence without a contractor license when the owner will live in the home. The owner-builder exemption also covers adjacent structures such as a shed; a homeowner exemption form should be obtained from the local permit office.
- Contractor requirements
- Direct contractors are required to follow Louisiana State Licensing Board requirements and be licensed or registered when state thresholds are met.
Application process
Application → plan check → issuance → inspection → final
- 01 Contact a permit officer at 985-783-5060.
- 02 Gather the required permit application package.
- 03 Submit the completed permit package to St. Charles Parish Planning and Zoning.
- 04 Plans are reviewed for building code and zoning compliance.
- 05 Staff contacts the applicant for additional documentation, fees, or a pre-application meeting if needed.
- 06 When approvals are complete and all fees are paid, the permit is issued.
- 07 Construction may begin only after permit issuance.
Source: St. Charles Parish Department of Planning and Zoning, Permit Administration Section ↗
Fee schedule
Hahnville building permit fees
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
Required inspections
Scheduling and sequence
- Scheduling deadline
- The residential guide says South Central Planning and Development provides prompt next-day inspections and offers an inspector on call for emergency after-hours inspections.
Typical sequence: The inspection schedule is posted on the second page of the issued permit; post the inspection board when the permit is issued and provide final documents for closeout. Final inspections include final fire marshal, final drainage, final elevation, and final as-built; a final certificate of occupancy is issued at closeout.
Source: St. Charles Parish Department of Planning and Zoning, Permit Administration Section ↗
Frequently asked
Common questions about Hahnville permits
01 Do I need a building permit in Hahnville, LA? ▸
02 How much does a building permit cost in Hahnville, LA? ▸
03 How do I apply for a building permit in Hahnville, LA? ▸
04 How do I schedule a building inspection in Hahnville, LA? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with St. Charles Parish Department of Planning and Zoning, Permit Administration Section before applying. Jaspector is not legal advice.