Accessory Structures in Lafayette Parish, LA (2026)
3 county-level rules, plus city-specific rules for 1 city in Lafayette Parish, Louisiana.
Verified from official government sources
ADU Rules
Lafayette's code allows one accessory apartment per lot, citywide and in the unincorporated parish, capped at 25 percent of the main home's floor area or 800 square feet, whichever is larger, with a building permit required for any detached unit.
Accessory Apartment Rules in Lafayette Parish
Some RestrictionsLafayette City-Parish Consolidated Government Code § 89-74
(a)Applicability. This section applies to the City of Lafayette, and the unincorporated areas of Lafayette Parish.(b)Only one accessory apartment is allowed per lot.(c)Maximum living area is the greater of:a.Twenty-five percent of the gross floor area of the principal dwelling unit, orb.Eight hundred square feet.(d)An accessory apartment may not be sold separately from the principal dwelling un...
ADU Rental Restrictions
Lafayette City-Parish allows one accessory apartment per lot, capped at 25% of the main home's floor area or 800 square feet. The unit can be rented out but never sold apart from the house.
Lafayette ADU Rental Rules
Some RestrictionsLafayette City-Parish Consolidated Government Code § 89-74
(a)Applicability. This section applies to the City of Lafayette, and the unincorporated areas of Lafayette Parish...(d)An accessory apartment may not be sold separately from the principal dwelling unit but may be rented.
Shed & Carport Rules
Detached sheds and other accessory buildings in Lafayette Parish have no maximum size as long as they clear 20-foot front, 5-foot side, and 10-foot rear setbacks under the Development Code.
Lafayette Accessory Building & Shed Setbacks
Some RestrictionsLafayette City-Parish Consolidated Government Code § 89-73(b)
(b)Detached accessory buildings.(1)Detached buildings accessory to residential use have no maximum area if they are setback at least:a.20 feet from the front property line and no closer to the front property line than the front wall(s) of the principal structure;b.At least five feet from the side lot line; andc.On corner lots, the distance of the principal structure from any street; andd.Ten fe...
Accessory Structures by City in Lafayette Parish
1 cities in Lafayette Parish have their own accessory structures rules. Each link goes to that city's dedicated page with code citations.
All Lafayette Parish ordinances
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