5 rules for unincorporated Jefferson Parish, Louisiana.
Verified from official government sources
Jefferson Parish's zoning ordinance has no modern by-right ADU program. Detached accessory buildings in residential districts are regulated as accessory structures (Sec. 40-743) and may not be used as separate dwellings unless the zoning district and lot expressly allow a second dwelling unit.
Under Jefferson Parish zoning Sec. 40-743, an accessory building such as a shed may sit in a required rear or side yard but must not exceed 13 feet in height and must stay at least 3 feet from interior side and rear lot lines, with limits on rear-yard coverage.
Jefferson Parish Code Sec. 40-743
Any accessory building or structure permitted in a required rear or side yard shall not exceed thirteen (13) feet in height... such accessory building is not less than sixty (60) feet from the front lot line, and not less than three (3) feet from the nearest interior side lot line.
Converting a garage in unincorporated Jefferson Parish is a zoning and building matter under Chapter 40. Turning an accessory garage into separate living quarters requires the district to allow an additional dwelling unit; converting an attached garage into living space needs permits and must keep required off-street parking.
A carport is treated as an accessory structure under Jefferson Parish zoning Chapter 40. It must meet the same accessory-building setback and height limits in Sec. 40-743 and any front-yard and clear-vision rules, and a building permit is required in the unincorporated parish.
Jefferson Parish has no dedicated tiny-home ordinance. A tiny house on a permanent foundation is regulated as a dwelling under Chapter 40 zoning and the adopted building code; a tiny house on wheels is treated as a recreational vehicle and may not be used as a permanent residence in residential
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