Unincorporated Franklin County, Alabama has no general county building-permit requirement, but development in a mapped flood hazard area needs a Floodplain Development Permit12. Unincorporated land has no county zoning ordinance, although municipal rules can apply inside city limits34. Septic permits go through the Franklin County Health Department's Environmental Office5.
At a glance
- Building permit
- Not required countywide; a Floodplain Development Permit is required in mapped flood hazard areas12
- Zoning
- No county zoning ordinance found; only the five incorporated cities zone36
- Septic permits
- Franklin County Health Department, Environmental Office (Alabama Department of Public Health)5
- RV / tiny home / manufactured home
- Unrestricted under county rules, since there is no county zoning ordinance6
- Owner-builder
- Exempt from Alabama contractor licensing if you build your own 1- or 2-family home and personally supervise the work78
- Manufactured home
- Allowed statewide if it meets size and HUD Seal requirements and uses a certified installer9
- Subdivision regulations
- County review applies in its subdivision jurisdiction; proposed plats go through the County Engineer and County Commission10
- Septic soil difficulty
- Only 3.5% of county soils are free of severe limits for a conventional drain field11
Who to call
Also useful
Main county government office; administers the county's Floodplain Development Ordinance No. 24-001 and can direct you to the current Floodplain Administrator and permit forms
410 Jackson Avenue North, P.O. Box 1028, Russellville, AL 35653
Roads & driveways
Franklin County Highway Department (County Engineer)
County road and driveway questions for Franklin County; the department's page also links to the county's Subdivision Regulations
Septic permits
Franklin County Health Department, Environmental Office (Alabama Department of Public Health)
Onsite sewage disposal system permits (Permit to Install), inspections and approval for use in Franklin County
801 Highway 48, Russellville, AL 35654
Contact details are copied from each office’s official page and were checked against it on September 28, 2026.
Do you need a building permit in Franklin County, Alabama?
Probably not, outside a mapped flood zone. Franklin County has no county building, planning, or zoning department, and county materials describe permitting as a municipal-level matter within the incorporated cities, so unincorporated land has no general county building-permit requirement1. Alabama counties may adopt and administer residential building laws by resolution, but we could not confirm that Franklin County has adopted a general residential code or inspection program; ask the County Commission before construction12. Franklin County's confirmed exception is the floodplain: a Floodplain Development Permit is required before buildings, grading, filling, excavation, or other development begins in a mapped Special Flood Hazard Area or other county-designated flood hazard area213. An owner who builds a one-family or two-family home for personal occupancy and provides all material supervision can use Alabama's owner-builder licensing exemption, but the exemption does not waive separate floodplain or septic requirements8. A hired subcontractor must be licensed when that subcontracted undertaking exceeds $10,0008.
Who handles building and floodplain permits in Franklin County, and how do you reach them?
Franklin County does not have a stand-alone building department, so start with the Franklin County Commission at 410 Jackson Avenue North, Russellville, AL 35653, phone (256) 332-885014. The Commission can direct you to the Floodplain Administrator and county floodplain forms; the ordinance says the application goes to the Floodplain Administrator before development in the regulated flood areas2. The Franklin County Highway Department and County Engineer handle county-road questions at (256) 332-843415. For a land division in the county's subdivision jurisdiction, submit the proposed plat through the County Engineer for review and County Commission action; the regulations require a complete application at least 30 days before Commission consideration10. Municipal offices are the right starting point inside city limits: Russellville, for example, has building permits, phased inspections, and zoning for specified structures and uses4.
Does Franklin County have zoning?
Unincorporated Franklin County has no county zoning ordinance, while incorporated municipalities can apply their own rules36. Russellville expressly zones certain city areas for specific structures and uses, so a Russellville parcel needs a city-level check4. On unincorporated land, county zoning sets no minimum dwelling size, general minimum lot size, setback, lot-coverage limit, or building-height limit; county zoning also does not restrict RVs, tiny homes, manufactured homes, accessory dwellings, or temporary camping6. Subdivision control is separate from zoning. Franklin County regulates land divisions in its subdivision jurisdiction, generally outside municipal corporate limits and outside a municipal planning commission's territorial jurisdiction10. A qualifying division into parcels larger than five acres can be excluded only when every parcel has at least 60 feet of road frontage, needs no public-utility extension, and a licensed engineer finds no added stormwater runoff16. Lots without public water or sewer must meet Health Department minimum-lot requirements10.
How do septic permits work in Franklin County?
Every onsite sewage disposal system in Franklin County needs a Permit to Install from the Franklin County Health Department's Environmental Office at 801 Highway 48, Russellville, AL 35654, phone 256-332-270051718. Submit the application before construction; installation can begin only after complete plans meet the rules and the department issues the permit19. Soil suitability may require evaluation by a professional engineer, land surveyor, geologist, or soil classifier19. Only 3.5% of Franklin County soils are rated without severe limitations for a conventional septic drain field, so evaluate the site before settling on a house location or purchase price11. The installer must hold an Alabama Onsite Wastewater Board license19. No part of an installation may be covered until the local health department has an opportunity to inspect it, subject to the rule's inspection-delay exception, and the system cannot be used until the department issues Approval for Use20.
Can you live in an RV or tiny home on your land in Franklin County?
Yes, as far as county zoning goes on unincorporated land. Franklin County's lack of county zoning leaves RV occupancy, tiny-home occupancy, manufactured-home occupancy, accessory dwellings, and temporary camping unrestricted by county zoning6. Septic and floodplain rules still apply to the site even when county zoning does not192. Alabama separately recognizes a manufactured or mobile home as a residence when it meets the state's construction and size definition, bears a HUD Seal, connects to required utilities, and is installed by a certified installer9. A tiny home that does not fit the manufactured-home definition does not get that statewide manufactured-home pathway9. Inside an incorporated municipality, use the city's answer instead; Russellville has municipal zoning and building permits4. We could not confirm a general Franklin County certificate-of-occupancy rule for an ordinary unincorporated home, so ask the County Commission and your utility providers before planning move-in.
Building a home in Franklin County: the steps, in order
- Confirm whether the parcel is inside a municipality or on unincorporated land; city zoning and permits can replace the county-level answer34.
- Ask the County Commission whether the parcel is in a regulated flood area and obtain the Floodplain Development Permit before grading, filling, or construction when required2.
- If the project divides land, take the proposed plat to the County Engineer before development; county subdivision review can require Commission approval and a Permit to Develop10.
- Evaluate the septic site early because only 3.5% of county soils are rated without severe conventional-drain-field limitations11.
- Apply to the Health Department for a Permit to Install and use a licensed installer1719.
- For access to a state highway, submit the BM-111 application to the ALDOT District Administrator21.
- If acting as owner-builder, personally provide all material supervision and keep separate floodplain and septic approvals in place8.
- Do not use the septic system until the local health department issues Approval for Use20.
What to check before you buy land in Franklin County
Start with septic feasibility: only 3.5% of Franklin County soils are rated without severe limitations for a conventional drain field, so get a site evaluation before committing to a house site11. Terrain and clearing also matter because 57.4% of the land has a slope of 15% or less and 70.7% is wooded2223. Confirm municipal boundaries before assuming the unincorporated county answers apply; Russellville has its own zoning and building-permit process4. Check the flood map because development in mapped or county-designated flood hazard areas requires a county permit2. If the sale creates new lots, ask the County Engineer whether subdivision approval is needed; regulated projects cannot proceed to building development until the final plat is recorded16. For road access, distinguish a state highway from a county road because ALDOT requires the BM-111 process for a state-highway turnout21. Typical county figures are a 0.3% effective property-tax rate and a $432 median annual tax bill2425.
Watch-outs
- Franklin County's no-zoning answer applies to unincorporated land; Russellville has municipal zoning and building permits, so verify city limits before relying on the county answer34.
- A land division can trigger county subdivision review even though unincorporated Franklin County has no zoning ordinance; contact the County Engineer before marketing, transferring, or developing new lots10.
- No official Franklin County source confirms whether a certificate of occupancy or a general building inspection is required for an ordinary home outside a flood zone; confirm directly with the County Commission office1.
Sources
- Franklin County Development Authority - Licenses & Permits (2026 county census)
- January 20, 2026 Regular Meeting Minutes — Floodplain Development Ordinance, quoted and re-checked
- Franklin County Development Authority - Licenses & Permits (2026 county census)
- Building, Licensing, and Zoning, quoted and re-checked
- Soil and Onsite Sewage (2026 county census)
- Alabama law on county zoning and building authority
- Exemptions — Home Builders Licensure Board (2026 county census)
- Exemptions — Home Builders Licensure Board, quoted and re-checked
- What is a manufactured home? (Alabama statewide rule), quoted and re-checked
- 2022 Franklin County Subdivision Regulations, 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
- Franklin County Floodplain Development Ordinance No. 24-001, quoted and re-checked
- Franklin County Commission (franklincountyal.org)
- Franklin County Highway Department (County Engineer) (franklincountyal.org)
- 2022 Franklin County Subdivision Regulations, quoted and re-checked
- Franklin County Health Department, Environmental Office (Alabama Department of Public Health) (alabamapublichealth.gov)
- Soil and Onsite Sewage, quoted and re-checked
- Can I Live On This Lot?, quoted and re-checked
- Rule 420-3-1-.08 OSS/EDS Installation, quoted and re-checked
- ALDOT Permit Manual (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
Written September 28, 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.