Unincorporated McIntosh County, Georgia requires a building permit before constructing, erecting, moving or altering a building or structure12. County zoning governs land use outside incorporated municipalities2. McIntosh County Environmental Health handles local septic services, and development using a well, septic tank, private water or private sewage disposal needs County Health Department approval with the building-permit application345.
At a glance
- Building permit
- Required before constructing, erecting, moving or altering a building or structure1
- Zoning
- Yes in unincorporated areas; uses, setbacks and other standards depend on the mapped district267
- Septic
- County Health approval must accompany the building application; a construction permit and final inspection are required3489
- RV living
- Limited; a nonpaying guest may occupy one RV for no more than 15 days in one year, and land without a dwelling requires a permit10
- Tiny homes
- R-2 dwellings and Hog Hammock residences require at least 720 heated square feet; site-built or modular tiny homes need code compliance and local siting approval111213
- Owner-builder
- Available for qualifying owners building for their own occupancy, but county permits, codes, inspections and zoning still apply14
- County water
- A residence within 200 feet of County water must connect15
- Private well
- County Health approval must accompany the building-permit application5
Who to call
Building permits
McIntosh County Building & Zoning Office
Building permits, zoning applications, code enforcement, addressing and active permitting for McIntosh County
100 Madison Street, Darien, GA 31305
Septic permits
McIntosh County Environmental Health (Georgia Coastal Health District)
Environmental Health services for McIntosh County
1335 GA Highway 57, Townsend, GA 31331
Contact details are copied from each office’s official page and were checked against it on October 10, 2026.
Off-grid gear
Going off-grid in McIntosh 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 McIntosh County, Georgia?
Unincorporated McIntosh County requires a building permit before construction, erection, moving or alteration of any building or structure begins1. In unincorporated McIntosh County, the county enforces the current construction codes adopted and amended by the Georgia Department of Community Affairs, including state-adopted appendices1617. Before issuance, access must comply with the zoning code and any required final plat must be approved1. Development served by a well, septic tank, private water or private sewage disposal system must include County Health Department approval with the building-permit application54. A conforming application requires a dimensioned plat or scale plan and intended uses; after the fee is paid, the ordinance calls for issuance within 10 days, while a refusal must give written reasons18. If construction has not begun within six months, the building permit must be renewed18. Georgia's owner-builder exemption covers qualifying owners building on their own property for their own occupancy, but it does not waive county permits, codes, inspections or zoning14.
Who issues building permits in McIntosh County, and how do you reach them?
McIntosh County Building & Zoning is the permit and zoning office at 100 Madison Street, Darien, GA 31305; call 912-437-660319. The county page links an active-permitting portal and downloadable permit applications19. For land in unincorporated McIntosh County, start with this office to identify the zoning district, confirm the site plan, determine whether a special use is needed and obtain the correct building application176. The county requires established access before a building permit can issue, and a residential application may require driveway-culvert status plus a Public Works letter20. The published new-home application lists a residential building-permit fee of $0.30 per square foot and doubles it to $0.60 per square foot when construction begins before the permit is obtained21. Ask Building & Zoning about fees for work outside that application because we could not confirm a complete current fee schedule19.
Does McIntosh County have zoning?
McIntosh County zoning applies only to unincorporated land; uses must be permitted by right or through Special Use approval in the mapped district2. An unlisted use is prohibited and requires County Commission approval through an ordinance text amendment2. Permitted uses, setbacks, lot coverage and dimensional rules depend on the parcel's district6722. Unless a district says otherwise, structures are capped at 35 feet, with listed exceptions such as silos and water towers23. Guest houses or accessory dwelling units are allowed in identified districts but cannot exceed 25% of the primary structure or 700 square feet; they also need a permanent foundation, shared services, compliant setbacks and plans stamped by a licensed engineer or architect24. Manufactured homes are permitted by right in the A-F, A-R, R-1 and R-2 districts; the reviewed use table does not show them as permitted in the other listed districts25.
How do septic permits work in McIntosh County?
McIntosh County Environmental Health administers local onsite-sewage services under Georgia's statewide standards326. McIntosh County Environmental Health also handles onsite sewage services inside Darien27. The office is at 1335 GA Highway 57, Townsend, GA 31331, and its phone number is (912) 832-547328. For development using a septic tank or private sewage disposal system, a County Health Department approval certificate must accompany the building-permit application4. The County Board of Health must find a site suitable before issuing a septic construction permit, and the permit remains valid for no more than 12 months8. New systems and repairs to malfunctioning systems are inspected29. The Board of Health must also make a final inspection and give written approval before a system is backfilled or used9. Only 0.7% of McIntosh County soils are rated without severe limitations for a conventional drain field, so arrange the site evaluation before fixing a house location or closing on marginal land30. A public or community sewer available within 200 feet of the property line or in an abutting public right-of-way generally triggers a connection requirement, subject to the stated repair exception for some failing residential systems31.
Can you live in an RV or tiny home on your land in McIntosh County?
In unincorporated McIntosh County, an owner or lessee may accommodate one recreational vehicle belonging to a nonpaying guest for no more than 15 days in any one year, and property without a residential dwelling requires a permit10. One unoccupied RV may be stored in a private garage, accessory building, rear yard or side yard when it belongs to the owner or lessee10. An RV park is a distinct zoning use: the RVP district requires at least 5 acres, and unit locations must have approved community water and engineered sewer service3233. Site-built or modular tiny homes in Georgia need building-code compliance and local siting approval11. In unincorporated McIntosh County, R-2 dwellings and Hog Hammock (HH) residences require at least 720 heated square feet, ruling out a typical tiny house in those districts1213. Ask Building & Zoning whether the design and proposed parcel's district work together19.
Building a home in McIntosh County: the steps, in order
- For unincorporated land, ask McIntosh County Building & Zoning to confirm the zoning district, allowed dwelling type, setbacks and height rules19177.
- Confirm legal access and driveway-culvert requirements; the county will not issue a building permit until access is established, and a state-highway driveway requires the appropriate Georgia Department of Transportation application2034.
- Arrange Environmental Health review for any well, private water, septic tank or private sewage disposal system and obtain the approval required with the building application5428.
- Submit the dimensioned site plan, intended uses and other required plans to Building & Zoning, then pay the applicable fee18.
- Obtain the building permit before work starts and renew it if construction has not begun within six months118.
- Schedule inspections only when the site is ready: failed or premature inspection calls incur reinspection fees of $35, $50 and $65, payable before the inspector returns35.
What should you check before buying land in McIntosh County?
Verify the zoning map, permitted use, setbacks and legal access before relying on a listing description6720. If the seller is creating a new tract, confirm final-plat status because McIntosh County regulates divisions into two or more lots and will not issue a building permit before final-plat approval38. Check septic feasibility early because only 0.7% of county soils are rated without severe limits for a conventional drain field30. Determine whether County water is close enough to require connection: residences within 200 feet must connect15. If the project instead uses a well or private water system, budget time for County Health Department approval before submitting the building-permit application5. Coastal flood exposure also changes the build; in specified flood-hazard areas, the lowest floor of new construction and substantial improvements must be at least 1 foot above base flood elevation39. For carrying costs, the effective property-tax rate is about 0.8%, the median annual property-tax bill is about $1,310, and the typical home value is about $279,478404142.
Watch-outs
- A parcel without a residential dwelling requires a permit for an RV, while the nonpaying-guest allowance is limited to one RV for no more than 15 days in one year10.
- Only 0.7% of McIntosh County soils are rated without severe limitations for a conventional septic drain field, so a favorable-looking parcel still needs early site evaluation30.
- In specified flood-hazard areas, new construction and substantial improvements must place the lowest floor at least 1 foot above base flood elevation39.
Sources
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh County Zoning Ordinance 2025 v.1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1 (2026 county census)
- mcintoshcountyga.com, quoted and re-checked
- mcintoshcountyga.com, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, 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
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- Georgia Tiny House Fact Sheet (Georgia statewide rule), quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- gov.georgia.gov, quoted and re-checked
- mcintoshcountyga.com, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh County Zoning Ordinance 2025 v.1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh County Building & Zoning Office (mcintoshcountyga.com)
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- New Home Construction Permit Application, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh County Zoning Ordinance 2025 v.1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- Darien: Onsite Sewage (McIntosh County), quoted and re-checked
- McIntosh County Environmental Health (Georgia Coastal Health District) (coastalhealthdistrict.org)
- Onsite Sewage, 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
- GA DPH Onsite Sewage Manual (Georgia statewide rule), quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- Regulations for Driveway & Encroachment Control Manual (Georgia statewide rule), quoted and re-checked
- New Home Construction Permit Application, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- McIntosh County Zoning Ordinance 2025 v.1, quoted and re-checked
- McIntosh Zoning Ordinance 2025 v1, quoted and re-checked
- Flood Prevention Sec. 10-54 Adopted 9-12-23, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Typical home value (Zillow): Bolthole Index county data
Written October 10, 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.