Cobb County, GA Accessory Structures: Tiny Homes (2026)

Cobb County has not adopted specific tiny home zoning. Foundation-built tiny houses must meet the International Residential Code as adopted by Georgia, including IRC Appendix Q for dwellings under 400 square feet. Cobb zoning ordinance may specify minimum heated floor area per district (historically 1,200 to 1,500 sq ft minimum in some R zones), potentially conflicting with tiny home construction — verify with Cobb Community Development at 770-528-2035 before planning. Tiny Homes on Wheels (THOW) are classified as recreational vehicles under Georgia DMV and cannot be used as permanent residences in residential zones (violates Cobb Zoning Ordinance dwelling definitions). THOW may be parked temporarily on private property but not occupied long-term. ADU (accessory dwelling unit) ordinances in Cobb vary; detached ADUs may be permitted by right in some zoning districts and by conditional use in others, potentially offering a pathway for smaller dwelling units. Utility connections (water/sewer or approved septic, electrical), foundation, and certificate of occupancy required for any dwelling use.