Unincorporated Douglas County, Georgia requires a building permit for a home, and Douglas County Planning & Zoning handles residential permits and inspections1. Every property in Douglas County has a base zoning classification, so a parcel's district and approval conditions matter before you design or buy2. Septic installation is permitted through the Douglas County Board of Health, operating as Cobb & Douglas Public Health3.
At a glance
- Building permit
- Required for residential construction1
- Zoning
- Every property has a base zoning classification2
- Septic permit
- Handled by the Douglas County Board of Health through Cobb & Douglas Public Health3
- Owner-builder
- State contractor-license exemption applies, but county permits and codes still apply4
- Minimum home size
- District-specific; the standard is 1,800 square feet in AG, R-A, R-LD and R-MD5
- RV living
- Not confirmed; ask Planning & Zoning before relying on RV occupancy6
- Tiny home
- No distinct county occupancy rule confirmed; zoning and building codes still matter7
- Driveway permit
- Required outside a subdivision; state-highway access goes through Georgia DOT8
Who to call
Building permits
Douglas County Planning & Zoning
Residential building permits, inspections, zoning and development review in unincorporated Douglas County
4655 Timber Ridge Dr., Douglasville, GA 30135
Septic permits
Douglas County Board of Health (Cobb & Douglas Public Health), Environmental Health
Site review and permits for on-site sewage management systems in Douglas County
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Douglas County, Georgia?
Yes. Unincorporated Douglas County requires a residential building permit, and the county reviews plans and conducts inspections1. Construction is subject to Georgia's mandatory state minimum construction codes, and Douglas County has adopted local changes effective in 20269. A new or newly renovated building cannot be occupied or used until Douglas County issues a certificate of occupancy; the certificate costs $10 and is included in the building-permit price10. Georgia allows an owner to build the owner's own home without holding a state residential or general contractor license, but that exemption does not remove Douglas County permits, zoning, inspections or code requirements4.
Who is the Douglas County building department, and how do you reach it?
Douglas County Planning & Zoning is the first stop for building permits, inspections and zoning questions in unincorporated Douglas County12. The office is at 4655 Timber Ridge Dr., Douglasville, GA 30135, and its phone number is (770) 920-72416. Call before filing to confirm the current application route, required documents and parcel-specific zoning. Douglas County's published residential process calls for site plans, house plans and utility information, and the building permit is issued with the temporary/permanent power permit11. Septic approval is separate: the Douglas County Board of Health, through Cobb & Douglas Public Health, handles on-site sewage systems3.
Does Douglas County have zoning?
Yes. Every property in Douglas County has a base zoning classification, and overlay districts or earlier zoning-approval conditions can add requirements2. The Unified Development Code regulates property uses, land subdivision and the process for permitting buildings and improvements12. For detached homes in the AG, R-A, R-LD and R-MD districts, the standard minimum building floor area is 1,800 square feet, although specified transition cases and a nonprofit special-exception variance can allow no less than 1,300 square feet5. Height, setbacks and other dimensional rules depend on the zoning district, so confirm the parcel's district with Planning & Zoning before choosing plans136.
How do septic permits work in Douglas County?
The Douglas County Board of Health, operating through Cobb & Douglas Public Health, permits the installation, repair and use of on-site sewage systems throughout Douglas County3. The Board of Health must find the site suitable before issuing a construction permit, and that permit remains valid for no more than 12 months14. The Board of Health must inspect the completed system and give written approval before it is backfilled or used15. About 47.4% of Douglas County soils are rated without severe limitations for a conventional septic drain field, so a parcel-level soil evaluation remains essential16. A sewer connection is generally required when public or community sewer is available within 200 feet of the property line or in an abutting public right-of-way, subject to the stated repair exception17.
Can you live in an RV or tiny home on your land in Douglas County?
We could not confirm a Douglas County rule that generally allows living in an RV on vacant land, so ask Planning & Zoning about the parcel, duration, utilities and construction status before relying on an RV as temporary housing6. We also could not confirm a distinct Douglas County tiny-home occupancy category. Georgia treats site-built and modular tiny homes through the ordinary building-code framework, while local zoning controls siting matters such as lot dimensions and foundations7. In the AG, R-A, R-LD and R-MD districts, the standard detached-home floor-area minimum is 1,800 square feet, with only the specified transition and nonprofit-variance paths going as low as 1,300 square feet5. Those district standards can rule out many tiny-home plans even before utilities and septic are considered.
Building a home in Douglas County: the steps, in order
- Ask Douglas County Planning & Zoning to confirm the parcel's zoning district, overlays, approval conditions and dimensional standards26.
- Prepare the site plan, house plans and utility information required for the residential permit review11.
- Obtain Environmental Health approval for septic, or coordinate the required sewer tie-in when sewer is available318.
- Obtain a county driveway permit if construction is outside a subdivision; use Georgia DOT for a state-highway address8.
- Apply for the building permit and the associated temporary/permanent power permit11.
- Complete the required building and septic inspections before covering work or using the septic system115.
- Obtain the Douglas County certificate of occupancy before using the new building10.
What should you check before buying land in Douglas County?
Start with zoning, legal access, water, wastewater and flood exposure. A driveway permit is required for construction outside a subdivision, while access from a state-highway address requires Georgia DOT approval8. Douglas County's residential process requires an address before a water meter can be obtained and requires a sewer tie-in when sewer is available18. About 66.8% of county land has a slope of 15% or less, and about 47.4% of soils avoid a severe conventional-septic limitation; neither countywide figure replaces a parcel survey or soil evaluation1916. The median property-tax bill is about $2,079 per year, with an effective rate near 0.8%2021. Qualifying agricultural or timber property may be assessed at 40% of current-use value under a covenant lasting at least 10 years22.
Watch-outs
- Douglas County requires a certificate of occupancy before a new or newly renovated building is occupied or used10.
- Douglas County Planning & Zoning says it will not email an invoice requesting wire-transfer or online payment; confirm suspicious payment requests at (770) 920-72416.
- We could not confirm countywide rules for RV occupancy, private-well permits or all floodplain-development conditions; ask Planning & Zoning and Environmental Health before treating a parcel as buildable623.
Sources
- Douglas County Planning & Zoning (2026 county census)
- Planning & Zoning, quoted and re-checked
- Cobb & Douglas Public Health - Septic Systems (2026 county census)
- Residential and Commercial General Contractors Frequently Asked Questions (Georgia statewide rule), quoted and re-checked
- Article 4, Divisions I–V, quoted and re-checked
- Douglas County Planning & Zoning (douglascountyga.gov)
- Georgia Tiny House Fact Sheet (Georgia statewide rule), quoted and re-checked
- Residential Building Permit Walk-Thru, quoted and re-checked
- Current State Minimum Codes for Construction, quoted and re-checked
- Article 10 – Project Design and Construction Standards, quoted and re-checked
- Building Permits & Inspections, quoted and re-checked
- Unified Development Code, quoted and re-checked
- Article 4, Divisions I–V, quoted and re-checked
- Manual for On-Site Sewage Management Systems (Georgia statewide rule), quoted and re-checked
- Manual for On-Site Sewage Management Systems (Georgia statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- GA DPH Onsite Sewage Manual (Georgia statewide rule), quoted and re-checked
- Residential Building Permit Walk-Thru, quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Conservation Use Land Values (Georgia statewide rule), quoted and re-checked
- Douglas County Board of Health (Cobb & Douglas Public Health), Environmental Health (cobbanddouglaspublichealth.com)
Written September 27, 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.