Unincorporated Cullman County, Alabama has no zoning ordinances or permits at all, according to a letter the Cullman County Commission itself issues to verify this for buyers and lenders1. That same letter confirms the county does not inspect structures for plumbing, electrical, or structural work and does not issue or require a certificate of occupancy1. Septic systems are the one thing regulated everywhere, including unincorporated land: Alabama law requires a Permit to Install from the Cullman County Health Department before any onsite sewage system is built or repaired23. A new pipe or driveway onto a county road, and any development in a mapped flood zone, still need their own county permits45.
At a glance
- Building permit
- Not required in unincorporated Cullman County; the county doesn't inspect structures or issue certificates of occupancy61
- Zoning
- None; the county has no zoning ordinances or permits in unincorporated areas1
- Septic permits
- Cullman County Health Department; a Permit to Install is required before any construction or repair23
- Owner-builder
- Available statewide: an owner acting as their own contractor on their own single-family or two-family home is exempt from home-builder licensing7
- Minimum lot size / setbacks
- None set by the county in unincorporated areas89
- Driveway/pipe access
- County permit required for a driveway pipe onto a county road; 20-60 feet, inspected before and after installation4
- Floodplain permit
- Required for development in a mapped flood zone; residential lowest floor must sit at least 1 foot above base flood elevation5
- Septic soil difficulty
- Only 10.9% of county soils are free of severe limits for a conventional drain field10
Who to call
Floodplain permits
Cullman County Road & Engineering Department (Floodplain Management Coordinator)
Floodplain Development Permits for unincorporated Cullman County, and driveway pipe permits for access onto county roads
2883 AL Hwy 69 N, Cullman, AL 35058
Septic permits
Cullman County Health Department, Environmental Office
Onsite sewage (septic) permits, small and large flow development permits, private well water testing, and other environmental permits for Cullman County
601 Logan Avenue, S.W., Cullman, Alabama 35055
Contact details are copied from each office’s official page and were checked against it on September 23, 2026.
Do you need a building permit in Cullman County, Alabama?
No. The Cullman County Commission issues a standing letter stating plainly that it has no zoning ordinances or permits within unincorporated areas of the county, and that letter also confirms the county does not inspect structures for plumbing, electrical, or structural integrity and does not issue or require a certificate of occupancy1. Alabama law does let county commissions adopt building codes for unincorporated areas under two separate statutes, but Cullman County has not been shown to have done so11. That's changing statewide, though not yet: starting January 1, 2027, the Alabama Residential Building Code applies to residential builders everywhere in the state, enforced by whichever local jurisdictions run permitting and inspection programs, unless a county or municipality already has its own residential code in effect by that date12. Until then, an ordinary home, cabin, barn, or shop in unincorporated Cullman County goes up without a county building-permit review6.
Who handles septic, driveway, and floodplain permits in Cullman County?
There's no building department to call, since Cullman County doesn't run a building-permit program in unincorporated areas1. For septic systems, that's the Cullman County Health Department's Environmental Office, at 601 Logan Avenue, S.W., Cullman, Alabama 35055, phone 256-734-024313. For a driveway pipe onto a county road, or for a Floodplain Development Permit if your land sits in a mapped flood zone, that's the Cullman County Road & Engineering Department, at 2883 AL Hwy 69 N, Cullman, AL 35058, phone (256) 796-133614. Before placing a driveway pipe, you must mark the proposed access point with flagging and call ahead for an inspection of the site, then a second inspection after installation15.
Does Cullman County have zoning?
No. Unincorporated Cullman County has no zoning ordinances or permits of any kind, confirmed directly by the county's own zoning letter1. Alabama counties in general don't have broad, general land-use authority the way many states give their counties; the state legislature has granted only narrow, specific powers, such as flood-prone-area regulation and airport-hazard zoning near municipal airports, neither of which amounts to a general zoning ordinance16. With no county zoning, Cullman County sets no minimum dwelling size, no minimum lot size, no setbacks, and no lot-coverage or building-height limit in unincorporated areas17891819. That's different inside the City of Cullman, where the municipal Code of Ordinances covers zoning, and land there follows city rules instead20. One reminder from the county's own letter: areas surrounding Cullman Regional Airport may still be subject to other restrictions even without countywide zoning1.
How do septic permits work in Cullman County?
Every onsite sewage system in Cullman County not connected to a public sanitary sewer needs a Permit to Install from the Cullman County Health Department before construction begins133. You submit the application and plans to the local health department, and only once they're complete and meet Alabama's onsite sewage rules does the Permit to Install issue; construction can start only after that3. The installer must be licensed by the Alabama Onsite Wastewater Board, and where soil percolation runs slower than 60 minutes, or a shallow limiting zone exists, only a registered engineer may design the system21. Soils make this a real planning issue here: just 10.9% of Cullman County's land is free of severe limitations for a conventional drain field, so budget for a site and soil evaluation early and expect some properties to need an engineered or alternative system10. After installation, the system must pass inspection and receive an Approval for Use before you can occupy the home22.
Can you live in an RV or tiny home on your land in Cullman County?
Unincorporated Cullman County has no zoning ordinance restricting how you occupy your own land, so there's no county rule barring RV or tiny-home living or setting a minimum home size outside a flood zone1. If your parcel sits in a mapped flood hazard area, a different, narrower rule applies: an RV can stay on site fewer than 180 consecutive days if it's fully licensed, on its wheels or jacking system, connected only by quick-disconnect utilities, and has no permanently attached additions, or it must instead meet every new-construction requirement, including anchoring and elevation23. That floodplain rule is specific to flood-hazard sites; it doesn't establish a general countywide RV or camping rule for land outside a mapped flood zone, and no official county or state source located for this guide addresses long-term RV living on ordinary rural land23. A qualifying manufactured home is allowed statewide as a residence once connected to required utilities and bearing its HUD Seal, subject to any local siting or health requirements24.
Building a home in Cullman County: the steps, in order
First, confirm your parcel is outside the City of Cullman or any other municipality, since incorporated areas run their own zoning and permitting20. Second, check FEMA flood maps; if you're in a mapped flood zone, apply for a Floodplain Development Permit through the Road & Engineering Department before construction, and budget for a lowest floor at least 1 foot above base flood elevation145. Third, get a site and soil evaluation for your septic system early, since only 10.9% of the county's soils are free of severe limitations for a conventional drain field10. Fourth, apply for your Permit to Install through the Cullman County Health Department before any septic construction or repair begins133. Fifth, if your driveway needs a pipe onto a county road, mark the proposed access point and call (256) 796-1336 to schedule an inspection before placing the pipe, then schedule a second inspection after installation15. Sixth, if you'll act as your own contractor on a one- or two-family home for your own use, confirm you meet Alabama's owner-builder exemption conditions before you start7. Finally, build: there is no county building-permit review or inspection to schedule for an ordinary home in unincorporated Cullman County today, though that changes for new statewide standards beginning January 1, 2027612.
What to check before you buy land in Cullman County
Soil deserves early attention: only 10.9% of Cullman County's soils are free of severe limitations for a conventional septic drain field, so get a site evaluation before you count on a standard system10. Terrain is more forgiving, with 71.9% of the county at 15% slope or less and 57.3% wooded, so buildable, partly clearable sites are common2526. Confirm whether your tract is inside the City of Cullman or another municipality before assuming no permit or zoning applies, since city rules take over inside those limits20. Check FEMA flood maps too, since that's the trigger for the one development permit the county does require5. If your land needs a new driveway onto a county road, confirm the required pipe length and plan for county inspection before and after installation4. Typical property tax runs low here, about 0.3% effectively, with a median bill near $457 a year, against a typical home value around $263,788272829.
Watch-outs
- Starting January 1, 2027, the Alabama Residential Building Code applies to residential builders statewide, enforced by local jurisdictions with permitting and inspection programs; Cullman County has no such program today, so how that plays out locally is worth confirming with the county as the date approaches12.
- The floodplain ordinance's 180-day RV rule applies only to parcels in a mapped flood hazard area; no official source establishes a general countywide rule for RV or tiny-home living on ordinary rural land outside a flood zone23.
Sources
- Cullman County Zoning Letter, quoted and re-checked
- Services | Alabama Department of Public Health (2026 county census)
- Environmental Services | Alabama Department of Public Health, quoted and re-checked
- Driveway Pipe Permit Application, quoted and re-checked
- Floodplain Development Permit, quoted and re-checked
- Cullman County Commission (2026 county census)
- Exemptions – Home Builders Licensure Board (2026 county census)
- Cullman County Zoning Letter, quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Alabama County Commissioners Handbook, 13th Edition (Alabama statewide rule), quoted and re-checked
- Home Builders Licensure Board Law Effective October 1, 2025 (Alabama statewide rule), quoted and re-checked
- Cullman County Health Department, Environmental Office (alabamapublichealth.gov)
- Cullman County Road & Engineering Department (Floodplain Management Coordinator) (co.cullman.al.us)
- Driveway Pipe Permit Application, quoted and re-checked
- Alabama County Commissioners Handbook, 13th Edition (Alabama statewide rule), quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Code of Ordinances | Cullman, AL, quoted and re-checked
- Onsite Sewage Disposal (Alabama statewide rule), quoted and re-checked
- Septic Tank Systems (Alabama statewide rule), quoted and re-checked
- Flood Damage Prevention Ordinance, quoted and re-checked
- What is a manufactured home? (Alabama statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- 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 September 23, 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.