Unincorporated Cullman County, Alabama requires a floodplain development permit in regulated flood-hazard areas; we could not confirm a general home-building permit requirement elsewhere1. The county has no zoning in unincorporated areas, though airport-area restrictions may apply2. The City of Cullman and Arab run their own city rules inside city limits34. Septic permits countywide come from the Cullman County Health Department56.
At a glance
- Building permit
- Required for development in regulated floodplain areas; a general home-permit rule outside those areas could not be confirmed1
- Zoning
- No countywide zoning in unincorporated areas; municipal and airport-area rules may differ27
- Septic permits
- Cullman County Health Department; obtain a Permit to Install before building or repairing an onsite system58
- Owner-builder
- A qualifying owner-builder is exempt from state home-builder licensing, not other applicable permits or rules9
- Minimum size / setbacks
- No county zoning-based minimum dwelling size or setbacks in unincorporated areas1011
- Driveway/pipe access
- A permit and inspections are required for driveway-pipe access on a county road12
- Floodplain permit
- Required before development in regulated floodplain areas of unincorporated Cullman County13
- Agricultural buildings
- Exempt from state residential home-builder licensing, except any residence inside; applicable permits still apply14
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 October 24, 2026.
Off-grid gear
Going off-grid in Cullman 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 Cullman County, Alabama?
Cullman County requires a floodplain development permit before residential construction, manufactured-home placement, fill, excavation or other covered development in regulated flood-hazard areas of the unincorporated county13. The floodplain requirement does not establish a general home-building permit outside those areas; the ordinance requires the application to go to the Cullman County Engineer before any development begins, so ask about the exact parcel and project15. Cullman County does not inspect structures for plumbing, electrical or structural integrity and does not issue or require a certificate of occupancy16. Those statements do not establish whether the county has adopted a residential building code; confirm code requirements with the County Commission before designing a home.
Who issues building permits in Cullman County, Alabama?
The Cullman County Road & Engineering Department handles floodplain development applications and county-road driveway-pipe approvals at 2883 AL Hwy 69 N, Cullman, AL 35058, phone (256) 796-1336171819. The Cullman County Health Department Environmental Office handles septic applications and permits at 601 Logan Avenue, S.W., Cullman, Alabama 35055, phone 256-734-0243205. We could not confirm a general county residential building-permit office outside regulated floodplain areas; ask the County Commission about that requirement. Inside city limits the city handles building permits: the City of Cullman ties its building permits and certificates of occupancy to its subdivision regulations21, and Arab, which reaches into Cullman County, requires building permits to erect, enlarge, alter, demolish or repair a structure22. Septic permitting remains with the Cullman County Health Department countywide5. County driveway-pipe and floodplain permit fees could not be confirmed; ask Road & Engineering for current charges.
Does Cullman County have zoning?
Unincorporated Cullman County has no countywide zoning ordinance or county zoning permit2. Cullman County sets no zoning-based minimum dwelling size, minimum lot size, building setback, lot-coverage limit or building-height limit in unincorporated areas1023112425. Subdivision regulations, utility permits, driveway-pipe rules, floodplain rules and restrictions around Cullman Regional Airport can still affect a parcel2. The county letter does not speak for cities: the City of Cullman has its own code of ordinances that covers zoning3, and Arab, which reaches into Cullman County, sets zoning within its city limits4. Septic applications and permits remain with the Cullman County Health Department countywide5.
How do septic permits work in Cullman County?
The Cullman County Health Department handles local septic applications and permits within Alabama’s statewide onsite-sewage program526. The Health Department also takes applications and permits for septic tanks, grease traps and holding tanks6. A property not connected to public sanitary sewer needs a Permit to Install before a new onsite system is installed or an existing system is repaired8. Submit complete applications and plans to the Health Department, wait for the Permit to Install, and use an installer licensed by the Alabama Onsite Wastewater Board8. Only 10.9% of Cullman County soils are rated without severe limitations for a conventional drain field, so make septic feasibility an early purchase contingency27. Where soil percolation is slower than 60 minutes or a shallow limiting zone exists, only a registered engineer may design the system28.
Can you live in an RV or tiny home on your land in Cullman County?
Unincorporated Cullman County has no county zoning rule restricting tiny-home occupancy or temporary camping29. Septic, floodplain and airport-area requirements can still apply82. Long-term residential RV occupancy outside regulated flood-hazard areas could not be confirmed; ask the County Commission and Health Department about the intended use and wastewater arrangement. In areas regulated by the county flood ordinance, an RV may stay fewer than 180 consecutive days if it remains highway-ready and fully licensed if licensed, on its wheels or jacking system, attached only by quick-disconnect utilities and security devices, and without permanent additions; otherwise it must meet new-construction requirements30. Inside the City of Cullman, ask the city about RV rules; we could not confirm them.
What are the steps to build a home in Cullman County, Alabama?
- Confirm municipal boundaries and airport-area restrictions before relying on the unincorporated county’s no-zoning answer2.
- Ask the County Commission about general home-building permits and code requirements; the confirmed county requirement covers regulated floodplain development1.
- For floodplain development, submit the site plan and supporting approvals; an Alabama-licensed Professional Engineer or Land Surveyor must prepare, sign, date and stamp the application, and floodway construction requires a no-rise study18.
- Obtain the Health Department’s Permit to Install before septic construction and use a licensed installer8.
- Confirm water service with the Cullman County Water Department at the exact parcel31.
- For county-road driveway-pipe access, mark the location, obtain inspection and approval before placement, and arrange inspection after installation19.
- An owner-builder licensing exemption requires the owner to act as contractor and personally provide all material supervision for a qualifying residence intended for the owner’s use, not sale; hiring a supervisor defeats the exemption9.
What should you check before buying land in Cullman County?
Check the flood map before choosing a Cullman County homesite: regulated floodplain development needs a county permit, residential lowest floors must be at least 1 foot above base flood elevation where that elevation is available, and residential floodproofing is not allowed13. Verify water service with the Cullman County Water Department because service is not established for every tract31. New, extended or replacement driveway-pipe access on county rights-of-way requires a permit and inspections; pipe generally must be 20–60 feet long, with longer installations needing County Engineering approval1219. If buying for cabin rentals, Alabama’s state lodgings-tax rate in Cullman County is 5% for covered transient accommodations, additional local tax may apply, and a My Alabama Taxes account is required to collect the tax; tax registration does not establish land-use permission32.
Watch-outs
- An agricultural building is exempt from Alabama residential home-builder licensing, except any residence inside; the exemption does not waive floodplain, septic, subdivision or other applicable requirements14.
- Normal agricultural land disturbance may avoid state construction-stormwater coverage, a separate exemption that also does not waive other applicable requirements33.
- An exempt owner-builder must use licensed subcontractors when their portion exceeds $10,000; offering the residence for sale within 1 year after completion is presumptive evidence of construction for sale9.
Sources
- Required Floodplain Development Permit, quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Code of Ordinances | Cullman, AL, quoted and re-checked
- Arab: City of Arab Zoning Ordinance, updated 2024 (Cullman County), quoted and re-checked
- Services | Alabama Department of Public Health, quoted and re-checked
- Services | Alabama Department of Public Health (ADPH), quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Environmental Services | Alabama Department of Public Health, quoted and re-checked
- Exemptions – Home Builders Licensure Board, quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Driveway Pipe Permit Application, quoted and re-checked
- Floodplain Development Permit, quoted and re-checked
- Exemptions – Home Builders Licensure Board, quoted and re-checked
- Flood Damage Prevention Ordinance, quoted and re-checked
- Cullman County Zoning Letter, quoted and re-checked
- Cullman County Road & Engineering Department (Floodplain Management Coordinator) (co.cullman.al.us)
- Floodplain Development Permit, quoted and re-checked
- Driveway Pipe Permit Application, quoted and re-checked
- Cullman County Health Department, Environmental Office (alabamapublichealth.gov)
- Cullman: Cullman Subdivision Regulations (Cullman County), quoted and re-checked
- Arab: Building Department - Arab City, Alabama (Cullman County), 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
- Soil and Onsite Sewage | Alabama Department of Public Health (ADPH), 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
- Onsite Sewage Disposal (Alabama statewide rule), quoted and re-checked
- Alabama law on county zoning and building authority
- Flood Damage Prevention Ordinance, quoted and re-checked
- Cullman County, Alabama | Official Website | Water Department, quoted and re-checked
- Transient Occupancy (Lodgings) Tax, quoted and re-checked
- Do I need permit coverage?, quoted and re-checked
Written October 24, 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.