Skip to main content
CityRuleLookup

Accessory Structures in Georgia (2026)

83 rules on the books across Georgia, 33 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

ADU Rules

Rules for building accessory dwelling units (granny flats, in-law suites) including size limits, parking requirements, and owner-occupancy rules.

Cherokee County

Significant Restrictions

Cherokee County's zoning code does not create an accessory dwelling unit category. Zoning Ordinance Section 5.6 instead…

Read full rule →

Houston County

Significant Restrictions

Houston County's Land Development Regulations do not let anyone add a second house or mobile home to a residential lot…

Read full rule →

Marietta

Significant Restrictions

Marietta allows one accessory dwelling unit per lot as a director-approved temporary/conditional use under Section…

Read full rule →

Paulding County

Significant Restrictions

Paulding County allows a detached guest house, its version of an accessory dwelling unit, only as a Special Exception…

Read full rule →

Warner Robins

Significant Restrictions

A second house or mobile home on one Warner Robins residential lot is not a by-right accessory dwelling: it requires a…

Read full rule →

Acworth

Some Restrictions

Acworth allows one accessory dwelling unit per lot with a single-family detached home, capped at half the principal…

Read full rule →

Atlanta

Some Restrictions

Atlanta allows one accessory dwelling unit per single-family lot in the R-4, R-4A and R-5 districts, capped at two…

Read full rule →

Bartow County

Some Restrictions

Unincorporated Bartow County allows one accessory dwelling unit per lot in residential districts and A-1, capped at 50…

Read full rule →

Chatham County

Some Restrictions

Accessory dwelling units in Savannah and unincorporated Chatham County are governed by the joint NewZO zoning ordinance…

Read full rule →

Clayton County

Some Restrictions

Clayton County allows one accessory dwelling per lot as a conditional use, either inside the primary home or as a…

Read full rule →

Columbia County

Some Restrictions

An ancillary dwelling, Columbia County's term for a garage apartment or accessory dwelling unit, needs a lot of at…

Read full rule →

Columbus

Some Restrictions

Columbus, Georgia's Unified Development Ordinance recognizes four accessory dwelling types on a residential lot…

Read full rule →

Coweta County

Some Restrictions

In Coweta County's Village Center district, one accessory dwelling unit is allowed by right on any single-family…

Read full rule →

Decatur

Some Restrictions

In the City of Decatur, Georgia (DeKalb County), an accessory dwelling unit is a limited use allowed only behind a…

Read full rule →

DeKalb County

Some Restrictions

Unincorporated DeKalb allows attached, detached or converted accessory dwelling units by right on lots of at least…

Read full rule →

Fayette County

Some Restrictions

Unincorporated Fayette County allows exactly one guesthouse per lot, capped at 700 square feet of heated and finished…

Read full rule →

Floyd County

Some Restrictions

In unincorporated Floyd County, a guesthouse is the closest thing the Unified Land Development Code has to an accessory…

Read full rule →

Forsyth County

Some Restrictions

Forsyth County allows one accessory apartment per lot, attached or detached, under UDC §§ 16-4.1 and 16-4.2, but not…

Read full rule →

Fulton County

Some Restrictions

Unincorporated Fulton County allows one detached accessory dwelling, called a guest house, per single-family lot in…

Read full rule →

Gwinnett County

Some Restrictions

UDO § 210-140.10 allows one detached accessory dwelling per lot in Gwinnett County's residential districts, capped at…

Read full rule →

Hall County

Some Restrictions

Hall County allows one accessory dwelling unit (ADU) per principal home, capped between 300 and 1,000 square feet and…

Read full rule →

Johns Creek

Some Restrictions

Johns Creek allows a detached accessory dwelling unit, called a Guest House, on single-family lots. Zoning Ordinance…

Read full rule →

Macon Bibb County

Some Restrictions

Macon-Bibb County allows one accessory dwelling unit per lot as a conditional use under Section 23.01.01 of the…

Read full rule →

Rockdale County

Some Restrictions

Unincorporated Rockdale County allows a caretaker or employee accessory dwelling under Sec. 218-13(r) of the Unified…

Read full rule →

Roswell

Some Restrictions

Roswell, Georgia treats a backyard ADU as a 'carriage house': a conditional or limited use requiring City Council or…

Read full rule →

South Fulton

Some Restrictions

South Fulton permits one detached guest house per single-family lot for relatives, guests, or on-site employees, but…

Read full rule →

Walton County

Some Restrictions

Walton County allows guest houses by right on agricultural and R-1 lots of 1.2 acres or larger with county water (2.4…

Read full rule →

Shed & Carport Rules

When a storage shed or carport needs a permit, the square-footage exemption thresholds, and the setback and height limits that apply either way.

Acworth

Some Restrictions

Acworth caps every lot at two accessory structures, each no taller than 20 feet, with a combined footprint no larger…

Read full rule →

Atlanta

Some Restrictions

Backyard sheds and other accessory buildings in Atlanta's R-1 through R-5 districts cap out at 20 feet tall, 25% of the…

Read full rule →

Augusta-Richmond County

Some Restrictions

In Augusta-Richmond County R-1 zoning, accessory buildings and sheds are capped at one story and 18 feet, banned from…

Read full rule →

Carroll County

Some Restrictions

Unincorporated Carroll County exempts one-story detached tool sheds, storage sheds, and playhouses under 200 square…

Read full rule →

Chatham County

Some Restrictions

In unincorporated Chatham County, a building permit is required for accessory buildings, storage buildings, and tool…

Read full rule →

Cherokee County

Some Restrictions

A shed in unincorporated Cherokee County is regulated as an accessory structure under Zoning Ordinance Section 5.6. It…

Read full rule →

Clayton County

Some Restrictions

Clayton County caps residential sheds and mini-barns at no more than three accessory structures per lot, limits their…

Read full rule →

Cobb County

Some Restrictions

In Cobb County's R-80 zoning district, a carport counts as an accessory structure: units under 144 square feet need…

Read full rule →

Columbia County

Some Restrictions

A shed or accessory building of 400 square feet or less needs only a 5-foot setback from any property line under Code…

Read full rule →

Columbus

Some Restrictions

Columbus, Georgia treats a carport as a detached residential accessory structure, so it must meet the UDO's 5-foot side…

Read full rule →

Coweta County

Some Restrictions

Coweta County lets a shed or other accessory building sit as close as five feet to a rear or side lot line, per Zoning…

Read full rule →

Decatur

Some Restrictions

Decatur's Unified Development Ordinance caps accessory buildings, including garden sheds, at 1,000 square feet of floor…

Read full rule →

DeKalb County

Some Restrictions

In unincorporated DeKalb County, a shed or accessory building maxes out at 900 square feet on lots under an acre, must…

Read full rule →

Dunwoody

Some Restrictions

Dunwoody bans accessory buildings and sheds from front yards entirely and requires at least 10 feet of separation from…

Read full rule →

Fayette County

Some Restrictions

A storage building is a permitted residential accessory structure in unincorporated Fayette County, but it counts…

Read full rule →

Floyd County

Some Restrictions

A shed or tool room in unincorporated Floyd County is a customary accessory use under the Unified Land Development Code…

Read full rule →

Forsyth County

Some Restrictions

In Forsyth County's A1 agricultural zoning district, a shed can go up without a building permit only if it stays at or…

Read full rule →

Fulton County

Some Restrictions

In unincorporated Fulton County's single-family districts, garage and carport parking spaces count toward the minimum…

Read full rule →

Gwinnett County

Some Restrictions

Sheds and other accessory buildings in unincorporated Gwinnett County must sit at least 5 feet from property lines, or…

Read full rule →

Hall County

Some Restrictions

A backyard shed under 144 square feet can sit as close as 5 feet from the side or rear property line in unincorporated…

Read full rule →

Houston County

Some Restrictions

In unincorporated Houston County, a detached shed or accessory building can cover no more than 30 percent of the rear…

Read full rule →

Johns Creek

Some Restrictions

Johns Creek lists detached carports as accessory structures (Zoning Ordinance Art. III), so they must sit in the rear…

Read full rule →

Macon Bibb County

Some Restrictions

Macon-Bibb County requires detached sheds and other accessory buildings to sit at least 10 feet from the main house and…

Read full rule →

Marietta

Some Restrictions

A backyard shed in Marietta's R-1 district must sit at least 10 feet from the side or rear lot line under Section…

Read full rule →

Newton County

Some Restrictions

A detached, one-story tool or storage shed on a lot in unincorporated Newton County needs no building permit if its…

Read full rule →

Paulding County

Some Restrictions

Sheds and outbuildings in Paulding County must sit at least 10 feet off the side and rear property lines and cannot…

Read full rule →

Rockdale County

Some Restrictions

In unincorporated Rockdale County, Code Section 218-7 caps how many accessory buildings, like sheds and detached…

Read full rule →

Roswell

Some Restrictions

In Roswell's AG-43, RS-87 and RS-30 single-family districts, sheds and other accessory structures need 20 feet from the…

Read full rule →

South Fulton

Some Restrictions

South Fulton's zoning ordinance classifies tool sheds, storage sheds, and detached garages as accessory structures…

Read full rule →

Walton County

Some Restrictions

A shed or other accessory building in unincorporated Walton County must sit at least five feet from any property line…

Read full rule →

Warner Robins

Some Restrictions

Warner Robins requires a building permit for any roofed accessory structure over 20 square feet, including sheds, under…

Read full rule →

Whitfield County

Some Restrictions

In unincorporated Whitfield County, an accessory structure built with or after the main house on a lot under three…

Read full rule →

Bartow County

Light Restrictions

In unincorporated Bartow County, a personal storage building, garage, or other accessory building under 400 square feet…

Read full rule →