Accessory Structures in Biloxi, MS (2026)
3 verified accessory structures rules for Biloxi, Mississippi, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Biloxi regulates accessory dwelling units (ADUs) and accessory structures through the Land Development Ordinance (LDO), Chapter 23, primarily Article 23-4 (Use Standards). Detached ADUs are limited to 800 square feet and 20 feet in height, must sit in the rear yard on a permanent foundation, and follow district setbacks (typically 5 ft side, 10 ft rear). Mississippi has no statewide ADU mandate; zoning authority flows from Miss. Code Ann. Title 17 (Local Government).
ADU Rules in Biloxi
Some RestrictionsShed Rules
Biloxi regulates sheds and outbuildings through local building and zoning codes. Small sheds under 120 to 200 square feet may be exempt from permit requirements in many municipalities.
Biloxi Shed & Outbuilding Rules
Few RestrictionsGarage Conversions
Converting a garage to habitable space in Biloxi requires a Certificate of Zoning Compliance and a building permit from the Community Development Department. The work must meet the Mississippi-adopted International Residential Code (IRC) and Land Development Ordinance setback, parking, and zoning standards. Loss of required off-street parking is a common denial reason.
Garage Conversion Permits in Biloxi
Some RestrictionsLooking for Harrison County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Biloxi city rules.
Accessory Structures in Harrison County →