Unincorporated Forsyth County, Georgia requires a building permit for residential construction, issued by the county's Department of Building & Licensing1. The county has a Unified Development Code with countywide zoning administered by Planning & Community Development2. Septic permits go through Forsyth County Environmental Health's Land Use Section, not a state office3. You can build your own home without a Georgia contractor's license, but that license exemption does not waive Forsyth County's permits, inspections or zoning4.
At a glance
- Building permit
- Required for residential construction in unincorporated Forsyth County1
- Zoning
- Countywide Unified Development Code applies to unincorporated land2
- Septic permit
- Forsyth County Environmental Health's Land Use Section issues on-site sewage permits3
- Owner-builder
- You can build your own home without a contractor's license, but local permits and inspections still apply4
- Permit applications
- Digital plan submission, inspection requests and status tracking use the county's Customer Self Service portal5
- Certificate of occupancy
- Only Forsyth County, as the local governing authority, can issue one6
- Manufactured homes
- Need a state installation permit (about $60) from a licensed installer, plus local zoning approval7
- Well permit
- Contact the county health department before drilling; some wells need a permit first8
Who to call
Building permits
Forsyth County Department of Building & Licensing
Building permits, plan review, inspections and code compliance for unincorporated Forsyth County
2435 Freedom Parkway, Suite 2100, Cumming, GA 30041
Zoning
Forsyth County Planning & Community Development
Zoning, rezoning, sketch plats, land disturbance permits, variances and the Unified Development Code for unincorporated Forsyth County
2435 Freedom Parkway, Suite 1400, Cumming, Georgia 30041
Septic permits
Forsyth County Environmental Health - Land Use Section
On-site sewage management (septic) system permits, site evaluations and final inspections for Forsyth County
2435 Freedom Pkwy, Ste 2400, Cumming, GA 30041
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Forsyth County, Georgia?
Yes. Unincorporated Forsyth County requires a permit for residential construction, issued through the Department of Building & Licensing, which enforces Georgia's state minimum standard codes1. Georgia's mandatory construction codes apply statewide, while Forsyth County administers local enforcement and has adopted a local amendment to specified provisions of the 2018 International Plumbing Code, effective January 1, 2024910. Georgia lets an owner build their own home without a contractor's license, but that license exemption does not waive Forsyth County's permit, inspection or zoning requirements4. A certificate of occupancy can be issued only by the local governing authority, but the state source does not by itself establish when Forsyth County requires one6.
Who is the Forsyth County building department?
The Forsyth County Department of Building & Licensing, at 2435 Freedom Parkway, Suite 2100 in Cumming, issues building permits and runs plan review, inspections and code compliance for unincorporated Forsyth County11. Call (770) 781-2114, Monday through Friday, 8:30 a.m. to 5 p.m.11. The county uses its Customer Self Service portal for digital plan submission, permit applications, inspection requests, status tracking, information gathering and fee payment; requirements still vary by permit type5. Forsyth County Planning & Community Development, at 2435 Freedom Parkway, Suite 1400, handles zoning, rezonings and land disturbance permits at (770) 781-211512.
Does Forsyth County have zoning?
Yes. Forsyth County has zoning administered by Planning & Community Development, with zoning districts and supplementary regulations set out in the county's Unified Development Code2. Georgia's Zoning Procedures Law gives counties authority to zone unincorporated land but leaves district names, boundaries, permitted uses and development standards to the applicable local ordinance13. The available facts do not confirm the parcel-level rules for RV occupancy, minimum dwelling size, lot size, setbacks, lot coverage or building height. Before buying, give Planning & Community Development the parcel identification and intended use and ask which zoning district applies, whether the use is allowed, and which dimensional standards will govern12.
How do septic permits work in Forsyth County?
Georgia sets statewide onsite-sewage rules, while the applicable County Environmental Health Office handles local services and records14. In Forsyth County, the Environmental Health Land Use Section issues onsite-sewage permits and performs final inspections315. Georgia requires a construction permit before installation, repair, replacement or addition of a septic system, and the County Board of Health must find the site suitable first; the permit is valid for no more than 12 months16. Environmental Health approval is required before a building permit when a septic-served property will have a home built or remodeled, or a building or pool added, and review may take twenty business days or more17. About 52.2% of county soils are rated without severe limits for a conventional drain field, so parcel-specific evaluation still matters18. Call 770-781-6909 before relying on a lot's septic feasibility17.
Can you live in an RV or tiny home on your land in Forsyth County?
Georgia treats a site-built or modular tiny home as a dwelling unit subject to the same building code as any stick-built house, and it must be sited according to whatever Forsyth County's own zoning district allows for that parcel19. That rule does not extend to an RV or a manufactured-home-based tiny home, which face different standards19. A manufactured home needs its own state installation permit, purchased by a licensed installer for about $60, on top of whatever Forsyth County's zoning requires for that district7. There is no blanket statewide rule that lets you park and live in an RV on unimproved rural land in Georgia; that depends on Forsyth County's zoning for your specific parcel, so confirm with Planning & Community Development before you buy an RV as a housing plan12.
Building a home in Forsyth County: what are the steps, in order?
- Confirm the parcel's zoning district, allowed use and dimensional standards with Planning & Community Development at (770) 781-211512.
- If public sewer is unavailable, seek septic approval from Forsyth County Environmental Health at 770-781-6909 before the building permit; review may take twenty business days or more17.
- If you need a well, have the well contractor contact the county health department before drilling for site review; the available facts do not confirm that Forsyth County requires a well permit8.
- Use the Customer Self Service portal for digital plan submission and the permit application, then use it for status tracking and fee payment5.
- Request inspections through the portal as construction proceeds5.
- Ask Building & Licensing what final approval and certificate-of-occupancy requirements apply to your project6.
What should you check before you buy land in Forsyth County?
Forsyth County has about 1,214.9 people per square mile, and the nearest city of 100,000 or more is about 22 miles from the county center2021. About 13.2% of the county is federal land, so verify ownership and boundary conditions for any tract near federally managed property22. About 64.6% of county land is at a slope of 15% or less, making grading and site access important due-diligence items on steeper parcels23. About 52.2% of soils are rated without severe limits for a conventional drain field, but obtain a site evaluation before counting on a standard septic system18. Typical home insurance is about $1,925 a year, while the median property-tax bill is about $3,747 a year at an effective rate near 0.8%242526. Also confirm zoning, legal access, floodplain status, utility availability and any subdivision approval with the appropriate county office before closing12.
Watch-outs
- Forsyth County's Customer Self Service portal supports digital plans, applications, inspection requests, status tracking and fee payment, but the available facts do not establish the complete checklist or fees for every permit type5.
- This guide could not confirm a dedicated floodplain administrator or county road/driveway permit office separate from Building & Licensing and Planning & Community Development; ask either office to route a floodplain or driveway-access question to the right division11.
Sources
- Forsyth County - Building and Licensing (2026 county census)
- Forsyth County Planning & Community Development (2026 county census)
- Forsyth County Environmental Health - Sewage (2026 county census)
- Residential and Commercial General Contractors Frequently Asked Questions (Georgia statewide rule), quoted and re-checked
- Building & Licensing, quoted and re-checked
- Qualified Inspectors (Georgia statewide rule), quoted and re-checked
- Manufactured Housing (Georgia statewide rule), quoted and re-checked
- Water Well Standards (Georgia statewide rule), quoted and re-checked
- Mandatory and Permissive State Codes (Georgia statewide rule), quoted and re-checked
- Building & Licensing, quoted and re-checked
- Forsyth County Department of Building & Licensing (forsythco.com)
- Forsyth County Planning & Community Development (forsythco.com)
- Georgia Zoning Statutes Compilation (Georgia statewide rule), quoted and re-checked
- Onsite Sewage, quoted and re-checked
- Onsite Sewage, quoted and re-checked
- Manual for On-Site Sewage Management Systems (Georgia statewide rule), quoted and re-checked
- Forsyth County Environmental Health - Land Use Section (forsythhd.com)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Georgia Tiny House Fact Sheet (Georgia statewide rule), quoted and re-checked
- Population density: Bolthole Index county data
- Distance to the nearest metro area: Bolthole Index county data
- Federal land share: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Typical home insurance premium: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
Written September 29, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.