Accessory Structures in Johns Creek, GA (2026)
4 verified accessory structures rules for Johns Creek, Georgia, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Johns Creek allows a detached accessory dwelling unit, called a Guest House, on single-family lots. Zoning Ordinance Section 19.3.5 caps it at one per lot, 650-1,500 sq ft of heated floor area, rear yard only, with principal-building setbacks. It may have a kitchen but cannot be rented.
Johns Creek Accessory Dwelling Unit (Guest House) Rules
Some RestrictionsJohns Creek Zoning Ordinance Art. III (Definitions) and § 19.3.5 (Guest House)
Guest House. A detached accessory dwelling unit located on the same lot with a single-family dwelling unit. A guest house may be only used by relatives, guest or employees that work on the property without payment for rent. 19.3.5 Standards: 1. No more than one guest house structure per lot may be used for occupancy by relatives, guest(s) or employees that work on the property without payment f...
Shed & Carport Rules
Johns Creek lists detached carports as accessory structures (Zoning Ordinance Art. III), so they must sit in the rear or side yard outside the minimum setback. Under Art. XVIII, carport spaces count toward required single-family parking, with no more than two such spaces offsetting the minimum, and a carport is excluded from the canopy definition.
Johns Creek Carport Rules
Some RestrictionsJohns Creek Zoning Ordinance Art. III and Art. XVIII (Off-Street Parking)
Canopy. A roof-like cover, excluding carports, that either projects from the wall of a building or is freestanding. ... Parking space. ... No more than two carport or garage spaces may offset the minimum parking requirements in a single-family residential district. ... Garage and carport spaces may count toward the minimum required spaces in single-family districts.
Garage Conversions
Johns Creek does not have a code section specifically titled garage conversions. The Zoning Ordinance lists detached garages as accessory structures, requires them in the rear or side yard outside the setback, and lets garage parking count toward required single-family parking. Converting a garage to living space implicates the minimum-parking and Guest House rules.
Johns Creek Garage and Detached Garage Rules
Some RestrictionsJohns Creek Zoning Ordinance Art. III and Art. XVIII (Off-Street Parking)
No more than two carport or garage spaces may offset the minimum parking requirements in a single-family residential district. ... Garage and carport spaces may count toward the minimum required spaces in single-family districts. The maximum allowable paved parking or all weather surface area in front yards (excluding walkways and required sidewalks) shall be not more than 35%, excluding the TR...
Tiny Homes
Johns Creek's Zoning Ordinance has no provision specifically for tiny homes. A detached tiny dwelling on a single-family lot would be regulated as a Guest House (§ 19.3.5: 650-1,500 sq ft, rear yard, one per lot, no rent), and mobile homes are restricted, allowed in residential districts only temporarily while a home is built.
Johns Creek Tiny Home Rules
Some RestrictionsJohns Creek Zoning Ordinance §§ 19.3.5 and 19.3.6
19.3.6. Mobile Home-While Residence Is Being Built. ... B. Standards: 1. The building permit for the principal structure must have been issued and remain valid during the period that the mobile home is on the property. 2. The mobile home must be located on the same parcel as the principal structure being constructed and comply with all district setbacks. 3. The Administrative Permit shall expir...
Looking for Fulton County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Johns Creek city rules.
Accessory Structures in Fulton County →