Montgomery County, Georgia requires a building permit to construct or alter a home or commercial building, with applications directed to the County Chief Tax Appraiser1. Unincorporated Montgomery County has no county zoning ordinance, although incorporated municipalities may have their own rules2. A County Health Department permit and site inspection are required for onsite sewage3.
At a glance
- Building permit
- Required for residential or commercial construction and alterations1
- Building codes
- Georgia's mandatory construction codes apply statewide4
- Zoning
- No county zoning ordinance in unincorporated areas; municipal rules may differ2
- Septic permit
- Required through the County Health Department before site development or installation35
- Owner-builder
- The state contractor-license exemption may apply, but permits and codes still do6
- Minimum home size
- No county zoning minimum in unincorporated areas; building and health rules still apply7
- RV living
- Long-term occupancy could not be confirmed; ask Code Enforcement8
Who to call
Building permits
Montgomery County Tax Assessors Office
County tax assessment; ask whether this office still accepts building-permit applications
303 S. Richardson St, Mount Vernon, GA 30445
Zoning
Montgomery County Code Enforcement
County code questions; ask about permits, zoning, floodplain review, RVs and tiny homes
310 W. Broad St, Mt. Vernon, GA 30445
Septic permits
Montgomery County Health Department
Environmental Health contact for onsite sewage permits and private-well site review
218 West Broad Street, Mount Vernon, GA 30445
Roads & driveways
Montgomery County Road Department
County-road questions; ask whether a proposed county-road entrance needs approval
300 Earth Saver Drive, Ailey, GA 30410
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 Montgomery County, Georgia?
Montgomery County requires a building permit to construct or alter a residential or commercial building, and the county ordinance directs applications to the County Chief Tax Appraiser1. Call the Tax Assessors Office before work begins to confirm the current application, fee, plan, and inspection requirements9. Georgia's mandatory construction codes apply statewide, including the current International Building Code and International Residential Code with Georgia amendments4. An owner may build their own Georgia home without a state residential or general-contractor license, but that exemption does not waive building codes, permits, inspections, or other local requirements6.
Who handles building permits in Montgomery County?
The Montgomery County building-permit ordinance directs applications to the County Chief Tax Appraiser1. The Tax Assessors Office is at 303 S. Richardson St in Mount Vernon and can be reached at 912-583-41319. Because the current application, fees, covered work, and inspection sequence could not be confirmed, ask that office for the complete procedure before ordering plans. Montgomery County Code Enforcement is a second contact for code and parcel questions at 310 W. Broad St in Mt. Vernon or 912-583-28408. Georgia's statewide framework allows local administration through permits and inspections, but it does not supply Montgomery County's current forms or fees1011.
Does Montgomery County, Georgia have zoning?
Unincorporated Montgomery County has no county zoning ordinance, while incorporated municipalities may have separate ordinances2. That means the county has no zoning-based minimum dwelling size, minimum lot size, setbacks, lot-coverage limit, or building-height limit for unincorporated parcels712131415. The absence of county zoning also means county zoning does not restrict manufactured homes or accessory dwellings there1617. Building codes, septic suitability, subdivision controls, floodplain rules, nuisance rules, deed restrictions, and municipal ordinances can still limit a project. Confirm that the parcel is outside a city and ask Code Enforcement about any non-zoning rules that apply8.
How do septic permits work in Montgomery County?
Montgomery County Health Department administers onsite-sewage permits under Georgia public-health rules18. Obtain its construction permit before physically developing a site that will use onsite sewage or installing any system component3. A favorable site inspection is required before permit issuance, and new systems, repairs, replacements, and additions must be inspected; do not backfill or use a system before final inspection and written approval19. Call 912-583-4602 or visit 218 West Broad Street in Mount Vernon5. Only 11.5% of county soils are rated without severe limits for a conventional drain field, so make septic evaluation an early purchase contingency20. Privies and alternative onsite systems are possible only when they meet state design criteria and required approvals21.
Can you live in an RV or tiny home in Montgomery County?
We could not confirm a Montgomery County rule for long-term RV occupancy or temporary camping, so ask Code Enforcement before placing or occupying an RV8. Unincorporated Montgomery County has no county zoning ordinance and no county zoning minimum dwelling size, but building, septic, health, floodplain, and other rules still apply27. A site-built or modular tiny home remains subject to Georgia building codes, and the state's tiny-house appendix applies only where adopted locally22. County zoning does not restrict manufactured-home occupancy in unincorporated areas, but a licensed installer must obtain the state installation permit and comply with inspection requirements1623.
Building a home in Montgomery County: the steps, in order
- Confirm whether the parcel is in unincorporated Montgomery County or inside a municipality; the county has no zoning ordinance, but municipal rules may differ2.
- Ask Code Enforcement about floodplain review, dwelling type, and any non-zoning location limits8.
- Obtain the County Health Department construction permit and favorable site inspection before developing a site that will use onsite sewage35.
- Obtain final septic inspection and written approval before backfilling or using the system19.
What should you check before buying land in Montgomery County?
Check septic feasibility early because only 11.5% of Montgomery County soils are rated without severe limits for a conventional drain field20. A subdivision or mobile-home park using onsite sewage needs County Board of Health approval of water-supply and sewage-disposal plans before sale, lease, construction, or physical development24. Such a project must connect to public water when it is available within 1,000 feet25. For a private well, the contractor must contact the county health department in advance for site review, while a Montgomery County permit requirement could not be confirmed265. Ask the Road Department about county-road access; work in state-highway right-of-way requires a Georgia Department of Transportation permit2728.
Watch-outs
- The current Montgomery County building-permit application, fees, covered work, and inspection sequence could not be confirmed; ask the Tax Assessors Office before starting work19.
- No county zoning in unincorporated Montgomery County does not cancel building-code, septic, floodplain, subdivision, municipal, or private deed restrictions2.
- Only 11.5% of Montgomery County soils are rated without severe limitations for a conventional septic drain field, so obtain a site evaluation before treating a standard system as feasible20.
Sources
- Montgomery County, GA Code of Ordinances, Ch. 6 Building Permits (Municode) (2026 county census)
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- GA DPH Onsite Sewage Manual, quoted and re-checked
- Current State Minimum Codes for Construction, quoted and re-checked
- Montgomery County Health Department (montcoga.gov)
- Residential and Commercial General Contractors Frequently Asked Questions (Georgia statewide rule), quoted and re-checked
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- Montgomery County Code Enforcement (montcoga.gov)
- Montgomery County Tax Assessors Office (montcoga.gov)
- Mandatory and Permissive State Codes (Georgia statewide rule), quoted and re-checked
- Enforcement of State Minimum Codes (Georgia statewide rule), quoted and re-checked
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- Montgomery County Joint Comprehensive Plan Partial Update, quoted and re-checked
- Rule 511-3-1 On-Site Sewage Management Systems, quoted and re-checked
- GA DPH Onsite Sewage Manual, 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, quoted and re-checked
- Georgia Tiny House Fact Sheet (Georgia statewide rule), quoted and re-checked
- Manufactured Housing (Georgia statewide rule), quoted and re-checked
- GA DPH Onsite Sewage Manual, quoted and re-checked
- Rule 511-3-1 On-Site Sewage Management Systems, quoted and re-checked
- Water Well Standards (Georgia statewide rule), quoted and re-checked
- Montgomery County Road Department (montcoga.gov)
- Regulations for Driveway & Encroachment Control Manual (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.