Do You Need a Permit for a Metal Building or Carport in Lafayette, LA?

Usually yes. Lafayette Consolidated Government (LCG) lists carports, sheds and RV covers among the structures that need a residential permit, and it asks for engineered plans for metal buildings.

Residential projects

LCG's Building Codes page says a residential permit is required for a single-family dwelling, a duplex, "or almost any structure associated with a home, such as: a carport, shed, gazebo, RV cover, or a fence that is over 7 feet high."

Exempt: a detached playhouse or shed no larger than 200 sq ft on a movable foundation (piers or skids). It must still meet setback rules from the Development Division.

Metal buildings need engineered plans

LCG says a metal building (with steel columns, beams, girts and purlins), a pre-engineered building or a pole barn needs "a permit, floorplan, and an engineered stamped set of plans which includes the wind load certification." A structure built to the prescriptive code does not need a wind load certification.

Commercial projects

LCG says a commercial permit is required for almost every structure other than a single-family dwelling, a duplex or a structure associated with one. Exemptions include fences up to 7 ft, a one-story detached shed of 120 sq ft or less on a movable foundation, and retaining walls up to 4 ft. Drainage and traffic reviews can also apply.

Codes and loads

LCG lists the state-adopted codes as the 2021 International Residential Code and 2021 International Building Code (with state exclusions and amendments). It lists wind loads per ASCE 7-16 wind charts.

Who to ask

LCG lists the Permit Manager at (337) 291-8491 and the Chief Building Inspector at (337) 291-8485. If you're outside Lafayette Parish, check with your own parish or city. Also check flood zone rules.

General information only, not legal or engineering advice. Rules change, so confirm with the agency linked below or a licensed professional before you start work.

Sources

Last reviewed: October 2026.