Accessory Structures in Forsyth County, GA (2026)
2 rules for unincorporated Forsyth County, Georgia.
Verified from official government sources
ADU Rules
Forsyth County allows one accessory apartment per lot, attached or detached, under UDC §§ 16-4.1 and 16-4.2, but not both and not alongside a home business. Each unit needs at least 400 square feet of heated floor area, capped at 1,000 square feet or the size of the main house, plus its own off-street parking space and a side or rear entrance.
Forsyth County Accessory Apartment Rules
Some RestrictionsForsyth County, GA, Unified Development Code §§ 16-4.1(A)-(D), (G), 16-4.2(I)
(A) Only one attached accessory apartment shall be permitted on a lot, and an accessory apartment shall not be permitted in conjunction with a home occupation, professional home office, detached accessory apartment, or manufactured/mobile home permitted under hardship conditions. (B) One additional off-street parking space is required, which must be located in a side or rear yard. (C) At least ...
Shed & Carport Rules
In Forsyth County's A1 agricultural zoning district, a shed can go up without a building permit only if it stays at or under 200 square feet, skips electrical, mechanical, or plumbing service, and meets every required setback. Unified Development Code Section 16-4.32 requires a building permit for any shed that exceeds those limits.
Forsyth County Shed Size & Permit Rules
Some RestrictionsForsyth County, GA, Unified Development Code § 16-4.32
In A1 zoning districts, sheds may be allowed without a building permit provided that the shed meets the following requirements: (a)The shed shall be no larger than 200 square feet,(b)The shed shall not be outfitted for or serviced by any electrical, mechanical, or plumbing system, and(c)The shed shall comply with all setbacks. All other sheds shall require building permits.
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