Unincorporated Chatham County, Georgia requires permits for new buildings, accessory buildings, structural work and building-system work1. The county is zoned, so the official zoning map and the use schedule for the parcel's district should be checked before buying or designing2. Chatham County Environmental Health permits and inspects septic systems3.
At a glance
- Building permit
- Required for new structures and many alterations in unincorporated Chatham County1
- Zoning
- Yes; use the official map and the schedule for the parcel's district2
- Septic permits
- Required through Chatham County Environmental Health3
- Owner-builder
- No contractor license required to build your own home, but permits, inspections and zoning still apply45
- RV camping
- Temporary recreational camping sites are permitted in the R-A district; permanent RV residence is not established6
- Tiny home
- Must meet applicable dwelling codes and the parcel's local zoning rules72
- Certificate of occupancy
- Required before occupying a permitted structure8
- Septic soils
- Only 0.2% of soils rate free of severe limits for a conventional drain field9
Who to call
Building permits
Chatham County Building Safety & Regulatory Services
Building permit applications, plan review and inspections for unincorporated Chatham County, plus day-to-day zoning administration (home-occupation approvals, property-maintenance enforcement)
1117 Eisenhower Dr # D, Savannah, Georgia 31406
Zoning
Chatham County-Savannah Metropolitan Planning Commission (MPC)
Maintains the Chatham County Zoning Ordinance, staffs the Chatham County Zoning Board of Appeals, and reviews rezonings and variances for unincorporated Chatham County
110 East State St., Savannah, GA 31401
Septic permits
Chatham County Health Department Environmental Health Office (Georgia Coastal Health District)
Permits and inspects on-site sewage (septic) systems and drinking-water wells for unincorporated Chatham County under Georgia DPH rules
1395 Eisenhower Dr. Savannah, GA 31406
Floodplain permits
Chatham County Department of Engineering - Floodplain Administrator
Flood-zone determinations, elevation certificates and floodplain development permitting for unincorporated Chatham County
124 Bull Street, Room 430, Savannah, Georgia 31401
Roads & driveways
Chatham County Department of Public Works and Park Services
Right-of-way and driveway-access permits for unincorporated Chatham County roads
7226 Varnedoe Dr, Savannah, Georgia 31406
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 Chatham County, Georgia?
Yes. Unincorporated Chatham County requires permits for new structures, accessory buildings, structural work, occupancy changes, demolition, reroofing, antennas, parking lots and electrical, plumbing and mechanical work1. Retaining walls over 18 inches and permanent grade changes along property lines also require County Engineering review1. Georgia's owner-builder exemption lets an owner build the owner's own home without a state contractor license, but it does not waive Chatham County permits, inspections, codes or zoning5. During construction, all required inspections must pass before the building final can be requested10. The building final must pass before Chatham County issues a certificate of occupancy, and the building cannot be occupied without that certificate8.
Who is the Chatham County building department, and how do you reach them?
Chatham County Building Safety & Regulatory Services is the permit and inspection contact for work in unincorporated Chatham County11. Permit applications are submitted at 1117 Eisenhower Dr. in Savannah on weekdays during the hours stated by the county, and applications are not accepted by fax or email1. The office also provides an online permit portal11. Call Building Safety before filing if the project scope is uncertain, especially for accessory structures, trade work or a change in occupancy111. The Chatham County-Savannah Metropolitan Planning Commission maintains the zoning ordinance and handles zoning-board matters, while the official map and applicable district use schedule control what can be placed on a parcel122.
Does Chatham County have zoning, and what does it mean for RVs, tiny homes and setbacks?
Yes. Chatham County has zoning districts for its unincorporated areas, and the official zoning map—not the Tax Assessor's database—should be used to identify a parcel's district2. The county publishes separate land-use schedules for residential and conservation or recreational districts, business and industrial districts, and planned developments2. Those schedules determine whether a proposed house, tiny home, manufactured home or other use belongs in the district2. Georgia treats a site-built or modular tiny home used as a dwelling as a dwelling subject to applicable building codes, while Chatham County zoning still controls its location72. The materials reviewed do not establish a single countywide minimum home size, setback or lot size; ask the Metropolitan Planning Commission to confirm those standards for the parcel's mapped district12.
How do septic permits work in Chatham County?
Chatham County Environmental Health permits and inspects on-site sewage systems under Georgia Department of Public Health rules3. Septic installation must be performed by a Georgia-certified installer, and the County Health Department must complete its final inspection before final cover is placed3. Only 0.2% of Chatham County soils are rated without severe limits for a conventional drain field, so make septic feasibility a purchase contingency instead of assuming a standard system will work9. Where public or community sewer is available within 200 feet of the property line or in an abutting public right-of-way, Georgia requires connection rather than a new on-site system13. Contact Environmental Health for the site evaluation and permit path before finalizing a house location14.
Can you live in an RV or tiny home on your land in Chatham County?
Chatham County's use schedule permits camping sites in the R-A district for temporary overnight residence serving a recreational purpose6. That narrow allowance does not establish permission to use an RV as a permanent residence, or to camp in other zoning districts6. Ask the Metropolitan Planning Commission to confirm the mapped district and proposed RV use before relying on an RV for housing12. A site-built or modular tiny home used as a single-family dwelling must satisfy the applicable dwelling codes, and its placement remains subject to the county's district rules72. Chatham County's published materials reviewed here do not establish a countywide minimum dwelling size, so confirm the parcel-specific standards with zoning staff before ordering plans or a unit12.
Building a home in Chatham County: the steps, in order
- Confirm the parcel's zoning district on the official map, then ask the Metropolitan Planning Commission which use, setback and lot standards apply212.
- If the site will use septic, obtain Environmental Health approval and use a Georgia-certified installer3.
- Ask County Engineering about floodplain requirements before setting the building elevation or site plan15.
- Submit the building permit package to Building Safety & Regulatory Services; faxed or emailed applications are not accepted1.
- Obtain a county right-of-way permit before work or access construction within a county right-of-way16.
- Schedule the required trade, framing, insulation and final inspections; all required inspections must pass before the building final10.
What to check before you buy land in Chatham County
Before closing, verify the zoning district on the official map and have zoning staff confirm the proposed use, setbacks and lot standards212. Ask Environmental Health whether the lot can support septic; only 0.2% of county soils are rated without severe limits for a conventional drain field914. Ask County Engineering for the flood-zone requirements and Public Works about county right-of-way access1516. Chatham County's typical home value is about $340,029, while the reported farmland value is about $4,753 per acre1718. The effective property-tax rate is about 0.9%, and the median annual property-tax bill is about $2,4631920. If the tract is intended for agriculture or timber, Georgia's conservation-use program can assess qualifying land at 40% of current-use value in exchange for a covenant lasting at least 10 years21.
Watch-outs
- The R-A camping-site allowance covers temporary recreational overnight use, not confirmed permanent RV residence6.
- Chatham County requires the building final to pass before issuing a certificate of occupancy, and occupancy before that certificate is prohibited8.
- Only 0.2% of Chatham County soils are rated without severe limits for a conventional septic drain field, so verify feasibility before buying9.
Sources
- When are Building Permits Required, quoted and re-checked
- Chatham County Code Book, Chapter 3: Land Uses, quoted and re-checked
- On-Site Sewage/Septic Systems - Georgia Coastal Health District, quoted and re-checked
- Residential and Commercial General Contractors Frequently Asked Questions (2026 county census)
- Residential and Commercial General Contractors Frequently Asked Questions (Georgia statewide rule), quoted and re-checked
- Chatham County Zoning Regulations, Section 2: Definitions, quoted and re-checked
- Georgia Tiny House Fact Sheet (Georgia statewide rule), quoted and re-checked
- Inspection Requirements, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Inspection Requirements, quoted and re-checked
- Chatham County Building Safety & Regulatory Services (buildingsafety.chathamcountyga.gov)
- Chatham County-Savannah Metropolitan Planning Commission (MPC) (thempc.org)
- GA DPH Onsite Sewage Manual (Georgia statewide rule), quoted and re-checked
- Chatham County Health Department Environmental Health Office (Georgia Coastal Health District) (coastalhealthdistrict.org)
- Chatham County Department of Engineering - Floodplain Administrator (engineering.chathamcountyga.gov)
- Chatham County Department of Public Works and Park Services (publicworks.chathamcountyga.gov)
- Typical home value (Zillow): Bolthole Index county data
- Farmland value per acre (USDA census): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Conservation Use Land Values (Georgia statewide rule), quoted and re-checked
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.