ADU rules in Long Beach, MS — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Long Beach Zoning Ordinance defines a garage apartment as a dwelling unit erected above a private garage, regulated as an accessory use subordinate to the principal dwelling. Comprehensive Land Use Ordinance #676 (effective Aug 11, 2025) is the controlling instrument; it replaces the 2013 Unified Land Use Ordinance #598. Accessory structures must be on the same zoning lot as the principal building and be subordinate in area, extent and purpose. Mississippi has no statewide ADU preemption, so Long Beach permitting standards (setbacks, height, parking, owner-occupancy) govern.
Mississippi statute does not preempt local zoning of accessory dwelling units. Long Beach regulates ADUs through its Comprehensive Land Use Ordinance (#676 adopted Aug 11, 2025; previously Unified Land Use Ordinance #598 of 2013). The zoning ordinance recognizes garage apartments as a distinct accessory dwelling type and applies the general accessory-use definition: subordinate to the principal building, on the same zoning lot, and contributing to the comfort/convenience of the principal occupants. Building permits are issued through the city Building/Permit Office (228-863-1554). All accessory dwellings within the Special Flood Hazard Area must also meet Flood Plain Ordinance #652 elevation standards.
Building or occupying an unpermitted ADU is a zoning violation; stop-work orders and removal can be ordered. Repeat violations are misdemeanors under city code with daily-accruing fines.
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