Accessory Structures in Decatur, GA (2026)
4 verified accessory structures rules for Decatur, Georgia, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
ADUs are permitted in Decatur since 2012 in residential zones (R-85, R-60, R-50, RM-18, RM-22, RM-43). Max size is 800 sq ft or 40% of main home, up to 1,200 sq ft absolute maximum. Owner must occupy either the main home or ADU for at least 8 months/year. Two bedrooms maximum. 4-foot setbacks required.
Decatur Accessory Dwelling Unit (ADU) Rules
Some RestrictionsShed Rules
Accessory structures including storage sheds in Decatur are regulated under UDO Article 7 (Site Development) and Article 2 (Residential Use Standards). Sheds must meet setback requirements (typically 5 feet from rear and side lot lines) and are limited in height and footprint relative to the main dwelling.
Decatur Shed & Outbuilding Rules
Some RestrictionsGarage Conversions
Garage conversions to living space in Decatur require a building permit and must meet UDO residential standards. Converting to an ADU is permitted subject to ADU rules. Converted garages must comply with building codes for insulation, egress, and fire separation. Loss of required parking spaces must be addressed.
Decatur Garage Conversion Rules
Some RestrictionsCarport Rules
Decatur regulates carports as accessory structures under the Unified Development Ordinance (UDO), with side and rear setbacks of approximately four feet from property lines in most residential districts, height capped at the lesser of 20 feet or the principal structure, lot coverage subject to district maximums, and a building permit required from the city under the Georgia State Minimum Standard Residential Code.
Carport Rules in Decatur
Some RestrictionsLooking for DeKalb County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Decatur city rules.
Accessory Structures in DeKalb County →