Unincorporated Chatham County, Georgia requires building permits for new structures and many alterations1. County zoning controls land use, setbacks and other development standards, while incorporated municipalities may administer their own zoning23. Chatham County Environmental Health permits and inspects septic systems456.
At a glance
- Building permit
- Required for new structures and many alterations in unincorporated Chatham County1
- Zoning
- Yes in unincorporated areas; rules vary by district and use78
- Septic permits
- Permitted and inspected by Chatham County Environmental Health456
- Owner-builder
- Available by notarized affidavit for an owner who will occupy the single-family home9
- RV camping
- Temporary recreational camping sites are permitted in the R-A district; we could not confirm permanent RV residence10
- Tiny home
- Must meet applicable dwelling codes and the parcel's local zoning rules1112
- Manufactured home
- Temporary placement has parcel, permit, foundation and other conditions13
- Septic soils
- Only 0.2% of soils rate free of severe limits for a conventional drain field14
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
floodletters@chathamcounty.org
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 October 7, 2026.
Off-grid gear
Going off-grid in Chatham County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Chatham County, Georgia?
Yes. Unincorporated Chatham County requires permits for new structures and listed structural, occupancy, demolition, roofing, signage, parking-lot, storage-tank, electrical, plumbing and mechanical work1. Georgia's mandatory construction codes apply statewide, including where they are not locally enforced15. An owner may perform detailed work on an owned single-family dwelling by filing Chatham County's notarized homeowner affidavit, provided the owner lives there or will live there after construction and hires only licensed contractors for assistance9. Land-disturbing approval is required before clearing, grading or digging, and the county's minimum inspection sequence includes zoning setbacks, foundation or slab, trades, framing, insulation and building final16. The building final and Engineering approval of site improvements come before the certificate of occupancy and electrical-power release17.
Who is the Chatham County building department, and how do you reach them?
Chatham County Building Safety & Regulatory Services accepts permit applications, conducts plan review and handles inspections for unincorporated Chatham County18. Applications may be submitted at the office or through its online portal, but the office does not accept them by fax or email18. County Engineering publishes separate forms for land-disturbing activity, plat review, plot-plan review, watershed-impact review, floodplain approval and certain water-and-sewer plan reviews19. Chatham County also publishes zoning, subdivision and development-review fees rather than one universal permit price; for example, the owner-occupied single-family variance base fee is $62020. The Metropolitan Planning Commission maintains the county zoning ordinance and handles zoning-board matters21. Confirm jurisdiction first because county zoning governs unincorporated Chatham County, while incorporated municipalities may administer their own zoning223.
Does Chatham County have zoning, setbacks and height limits?
Yes. Chatham County zoning governs land use and development throughout the unincorporated area27. Use the official zoning map—not the Tax Assessor's database—to identify the district, then use the matching use and development schedules12. Setbacks vary by district, use and street classification; the residential schedule includes a minimum of 20 feet from a design right-of-way line and 25 feet from saltwater marshland, except an elevated pier or wooden deck23. Building height also varies, although the nonresidential schedule uses 36 feet in many listed districts24. Some listed nonresidential districts have 40% building coverage, but that is not a countywide residential limit25. Chatham County has no confirmed single countywide minimum dwelling size or minimum lot size; ask the Metropolitan Planning Commission for the standards tied to the parcel's district21.
How do septic permits work in Chatham County?
Chatham County Environmental Health is the local approval office for on-site sewage systems, operating within Georgia's statewide environmental-health framework4. Environmental Health permits and inspects those systems, and a Georgia-certified installer must perform the work526. The County Health Department must complete its final inspection before final cover is placed626. Only 0.2% of Chatham County soils are rated without severe limits for a conventional drain field, so make septic feasibility a purchase contingency14. Georgia generally requires connection when public or community sewer is available within 200 feet of the property line or in an abutting public right-of-way27. A county water-and-sewer tap fee must also be paid before a building permit is issued when Consolidated Utilities serves the property28. Ask Environmental Health about the proposed house and drain-field locations before finalizing a site plan29.
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 only for temporary overnight residence serving a recreational purpose10. That allowance does not confirm permanent RV residence or camping in another district; ask the Metropolitan Planning Commission about the parcel and proposed duration before relying on an RV for housing1021. A site-built or modular tiny home used as a dwelling must meet applicable dwelling codes and the county's district rules118. Temporary manufactured or mobile-home placement follows a separate path requiring a Zoning Administrator permit, compatible development pattern, approved foundation and skirting, with no additions13. That temporary manufactured-home rule also requires a tract of at least 20,000 square feet and includes additional conditions, so it should not be read as general permission for every manufactured home13. Chatham County has no confirmed countywide minimum dwelling size; ask zoning staff before ordering a unit21.
What are the steps to build a home in Chatham County?
- Confirm that the parcel is in unincorporated Chatham County, identify its official zoning district and verify the proposed use and dimensional standards with the Metropolitan Planning Commission3821.
- Obtain Environmental Health approval if the lot will use septic, and determine whether a Consolidated Utilities tap fee applies428.
- Obtain floodplain review before the building permit if the project is in a special flood-hazard area30.
- Secure land-disturbing approval before clearing, grading or digging, then submit the building-permit package1619.
- Obtain Public Works approval for a new residential or commercial driveway and any required right-of-way permit3132.
- Pass the building final and obtain Engineering approval of site improvements before the certificate of occupancy and power release17.
What should you check before buying land in Chatham County?
Before closing, verify the zoning district and have zoning staff confirm the proposed use, setbacks, height and lot standards8232421. Ask Environmental Health whether the lot can support septic; only 0.2% of Chatham County soils are rated without severe limits for a conventional drain field1429. Ask County Engineering whether the site is in a special flood-hazard area because covered development requires review before the building permit30. Public Works approval is required for a driveway serving new residential or commercial construction31. Chatham County's typical home value is about $340,029, while reported farmland value is about $4,753 per acre3334. The effective property-tax rate is about 0.9%, and the median annual property-tax bill is about $2,4633536.
Watch-outs
- The R-A camping-site allowance covers temporary recreational overnight use, not confirmed permanent RV residence10.
- Projects in a special flood-hazard area require floodplain review before the building permit30.
- Only 0.2% of Chatham County soils are rated without severe limits for a conventional septic drain field, so verify feasibility before buying14.
Sources
- When are Building Permits Required, quoted and re-checked
- Zoning Ordinance of Chatham County, Section 1, quoted and re-checked
- Chatham County Zoning Ordinance, Section 1, quoted and re-checked
- Onsite Sewage, quoted and re-checked
- On-Site Sewage/Septic Systems, quoted and re-checked
- On-Site Sewage/Septic Systems, quoted and re-checked
- Chatham County Zoning Ordinance, Section 1, quoted and re-checked
- Chatham County Zoning Ordinance, Section 4-1 Establishment of Districts, quoted and re-checked
- Homeowner Affidavit, 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
- Chatham County Code Book, Chapter 3: Land Uses, quoted and re-checked
- Chatham County C and R Use Schedule, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Mandatory and Permissive State Codes (Georgia statewide rule), quoted and re-checked
- Inspection Requirements, quoted and re-checked
- Inspection Requirements, quoted and re-checked
- Chatham County Building Safety & Regulatory Services (buildingsafety.chathamcountyga.gov)
- Development Applications, quoted and re-checked
- Chatham County Revenue Ordinance, quoted and re-checked
- Chatham County-Savannah Metropolitan Planning Commission (MPC) (thempc.org)
- Zoning Ordinance of Chatham County, Section 1, quoted and re-checked
- Chatham County Zoning Ordinance, Section 4-6.1 Development Standards for Dwellings, quoted and re-checked
- Chatham County Zoning Ordinance, Section 4-6.1 Development Standards for Dwellings, quoted and re-checked
- Chatham County Zoning Ordinance, Section 4-6.1 Development Standards for Dwellings, quoted and re-checked
- On-Site Sewage/Septic Systems - Georgia Coastal Health District, quoted and re-checked
- GA DPH Onsite Sewage Manual (Georgia statewide rule), quoted and re-checked
- Building Permit Application Checklist, quoted and re-checked
- Chatham County Health Department Environmental Health Office (Georgia Coastal Health District) (coastalhealthdistrict.org)
- Floodplain Development Review, quoted and re-checked
- Complete Application Checklist Affidavit, quoted and re-checked
- 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
Written October 7, 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.