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Accessory Structures in Georgia (2026)

123 rules on the books across Georgia, 47 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.

Alpharetta

Significant Restrictions

Alpharetta's Unified Development Code allows a 'For-Sale' accessory dwelling above or behind a commercial or office…

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Cherokee County

Significant Restrictions

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

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Clayton County

Significant Restrictions

Clayton County allows accessory dwellings (garage quarters, guest houses, caretaker houses and mother-in-law suites)…

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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…

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Jackson County

Significant Restrictions

Unincorporated Jackson County does not allow a general-purpose accessory dwelling unit; it only permits an accessory…

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Marietta

Significant Restrictions

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

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Paulding County

Significant Restrictions

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

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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…

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Acworth

Some Restrictions

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

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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…

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Barrow County

Some Restrictions

Barrow County allows one detached guest house per lot as an accessory dwelling for relatives, domestic employees or…

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Bartow County

Some Restrictions

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

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Brookhaven

Some Restrictions

In the City of Brookhaven, Georgia, section 27-133 allows accessory dwelling units only on lots occupied by a detached…

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Bulloch County

Some Restrictions

In unincorporated Bulloch County, one accessory dwelling per lot, garage apartment, in-law suite or guesthouse, is…

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Catoosa County

Some Restrictions

Unincorporated Catoosa County allows one freestanding accessory dwelling per lot in single-family detached residential…

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Chatham County

Some Restrictions

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

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Columbia County

Some Restrictions

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

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Columbus

Some Restrictions

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

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Coweta County

Some Restrictions

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

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Decatur

Some Restrictions

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

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DeKalb County

Some Restrictions

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

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Effingham County

Some Restrictions

Accessory dwelling units are allowed in every Effingham County residential and agricultural-residential district that…

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Fayette County

Some Restrictions

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

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Floyd County

Some Restrictions

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

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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…

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Fulton County

Some Restrictions

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

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Gordon County

Some Restrictions

In unincorporated Gordon County, Georgia, the Unified Land Development Code allows one accessory dwelling inside a…

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Gwinnett County

Some Restrictions

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

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Hall County

Some Restrictions

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

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Johns Creek

Some Restrictions

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

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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…

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Rockdale County

Some Restrictions

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

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Roswell

Some Restrictions

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

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South Fulton

Some Restrictions

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

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Stonecrest

Some Restrictions

In the City of Stonecrest, a homeowner on a single-family lot of at least 10,000 square feet can add one accessory…

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Troup County

Some Restrictions

Unincorporated Troup County permits one accessory dwelling per principal home under UDO Sec. 7.3(2), built no closer…

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Walker County

Some Restrictions

In unincorporated Walker County, accessory apartments are a listed part of the Residential use category, so an ADU is…

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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…

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Spalding County

Light Restrictions

Unincorporated Spalding County treats a mother-in-law suite as a permitted accessory use in agricultural and…

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ADU Owner Occupancy

Whether the property owner must live on-site to operate an ADU, deed-restriction requirements, and recent state-law changes lifting owner-occupancy rules.

Brookhaven

Significant Restrictions

Section 27-133(g) of the Brookhaven Code requires an owner with at least a 50 percent interest to occupy either the…

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Catoosa County

Significant Restrictions

In unincorporated Catoosa County, adding a freestanding accessory dwelling to a single-family lot comes with a…

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Clayton County

Significant Restrictions

In the TOD Residential Support (RT) Overlay near future transit stations, Clayton County requires the lot holding an…

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Jackson County

Significant Restrictions

For the only accessory-dwelling option unincorporated Jackson County allows, the property owner must personally live in…

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Stonecrest

Significant Restrictions

In the City of Stonecrest, an accessory dwelling unit is not an investment rental: Zoning Ordinance Sec. 4.2.3(C)(3)…

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Alpharetta

Some Restrictions

In Alpharetta's O-P office-professional zoning district, the Unified Development Code lets a business add a 'For-Sale'…

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Barrow County

Some Restrictions

In unincorporated Barrow County, a homeowner may add a second cooking facility for relatives inside a single-family…

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DeKalb County

Some Restrictions

In unincorporated DeKalb County, the property owner must live in either the main house or the accessory dwelling unit…

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Floyd County

Some Restrictions

In unincorporated Floyd County, an accessory apartment is allowed only where the property's principal home is…

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Gwinnett County

Some Restrictions

Gwinnett County will not issue a Certificate of Occupancy for an accessory dwelling unit unless the primary…

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Macon Bibb County

Some Restrictions

Macon-Bibb County will not permit an accessory dwelling unit unless the property owner actually lives on site. Section…

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Marietta

Some Restrictions

Marietta lets homeowners in the R-1 through R-4 single-family districts build one accessory dwelling unit as a…

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Roswell

Some Restrictions

Roswell's UDC requires the owner of a detached house to personally occupy either the main house or its carriage house…

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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…

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Alpharetta

Some Restrictions

A backyard shed or tool room in the City of Alpharetta must keep a 10-foot setback from the rear and side lot lines, or…

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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…

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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…

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Barrow County

Some Restrictions

In unincorporated Barrow County, a small shed of 144 square feet or less only needs to sit five feet from any property…

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Brookhaven

Some Restrictions

Section 27-696 of the Brookhaven Code exempts one accessory building or structure of up to 120 square feet on each lot…

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Bulloch County

Some Restrictions

In unincorporated Bulloch County, a shed or other detached accessory building must sit at least ten feet from the…

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Carroll County

Some Restrictions

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

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Catoosa County

Some Restrictions

In unincorporated Catoosa County, sheds and other accessory structures must clear the same yard rules as any building…

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Chatham County

Some Restrictions

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

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Cherokee County

Some Restrictions

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

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Clayton County

Some Restrictions

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

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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…

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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…

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Columbus

Some Restrictions

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

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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…

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Decatur

Some Restrictions

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

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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…

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Dunwoody

Some Restrictions

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

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Effingham County

Some Restrictions

In the county's R, PD-R, AR-1, AR-2, and AR-3 residential districts, a shed or other accessory structure tops out at 25…

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Fayette County

Some Restrictions

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

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Floyd County

Some Restrictions

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

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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…

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Fulton County

Some Restrictions

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

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Glynn County

Some Restrictions

In unincorporated Glynn County, a shed or tool room used to store yard or building-maintenance equipment is a permitted…

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Gordon County

Some Restrictions

In unincorporated Gordon County, accessory buildings in residential districts go in the rear yard and sit at least ten…

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Gwinnett County

Some Restrictions

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

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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…

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Houston County

Some Restrictions

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

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Jackson County

Some Restrictions

In unincorporated Jackson County, a shed under 200 square feet needs only a five-foot side or rear setback, but the…

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Johns Creek

Some Restrictions

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

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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…

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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…

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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…

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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…

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Rockdale County

Some Restrictions

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

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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…

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Smyrna

Some Restrictions

In the City of Smyrna, Georgia, a lot can hold one accessory structure no larger than one-fourth the total square…

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South Fulton

Some Restrictions

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

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Spalding County

Some Restrictions

A one-story detached shed, playhouse, or similar tool and storage building on residential property in unincorporated…

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Stonecrest

Some Restrictions

In the City of Stonecrest, a shed or other accessory building must sit in the rear yard, stay ten feet or the…

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Troup County

Some Restrictions

Sec. 4.7 caps most Troup County lots under five acres at three accessory structures like sheds, requires them to sit…

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Walker County

Some Restrictions

In the R-1 residential district of unincorporated Walker County, a shed or other detached accessory building can only…

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Walton County

Some Restrictions

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

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Warner Robins

Some Restrictions

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

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Whitfield County

Some Restrictions

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

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Bartow County

Light Restrictions

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

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Tiny Homes

Zoning rules for tiny houses on wheels and foundations, including minimum square footage requirements and where they can be placed.

Atlanta

Heavy Restrictions

Atlanta allows tiny homes only as detached accessory dwelling units up to 750 sq ft and 20 ft tall in R-4, R-4A, and…

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Bartow County

Heavy Restrictions

Unincorporated Bartow County's zoning ordinance bars anyone from living in a tiny house, whether full time or…

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Clayton County

Some Restrictions

Clayton County has no separate 'tiny home' ordinance. A freestanding backyard living unit is treated as an accessory…

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Effingham County

Some Restrictions

Unincorporated Effingham County allows tiny homes only inside R-4 planned manufactured home community districts, as a…

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Floyd County

Some Restrictions

In unincorporated Floyd County, a tiny home is only lawful if it fits one of three classes the Unified Land Development…

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Johns Creek

Some Restrictions

Johns Creek's Zoning Ordinance has no provision specifically for tiny homes. A detached tiny dwelling on a…

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South Fulton

Some Restrictions

South Fulton's zoning code does not treat a tiny home as its own building type. It only allows one as an accessory…

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Stonecrest

Some Restrictions

Stonecrest doesn't zone a single backyard tiny home as an accessory structure; instead, Zoning Ordinance § 4.2.49…

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Walker County

Some Restrictions

In unincorporated Walker County, a residential structure under 500 square feet is legally a tiny home and needs a…

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Spalding County

Few Restrictions

Spalding County's zoning ordinance defines a tiny house as a principal dwelling on a permanent foundation with 400…

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