Unincorporated Fentress County, Tennessee has no county zoning and no special county building permit requirement, and the county has opted out of the State Residential Building Program.12 Inside the City of Jamestown, zoning laws apply and building permits are required.3 Septic permits for every address in the county, city or not, come from the state Division of Water Resources through its Cookeville field office.4
At a glance
- Building permit
- No special county requirement in unincorporated Fentress County; permits are required inside Jamestown56
- Zoning
- No county zoning districts in unincorporated Fentress County; City of Jamestown has its own zoning783
- State residential program
- Fentress County opted out; owners may request State Fire Marshal inspection and a certificate of occupancy2910
- Septic permits
- Required statewide from TDEC's Division of Water Resources; $400 new conventional system up to 1,000 gpd1112
- Owner-builder
- You may build one residence every two years for your own use without a contractor license1314
- Ready-removable / tiny home on skids
- Prohibited statewide as residential housing if it has no foundation, footings or other support that allow easy relocation15
- Minimum dwelling size
- No county-zoning minimum in unincorporated Fentress County; deeds and state rules may still apply16
- Lot and building dimensions
- No county-zoning minimum lot size, setback, lot-coverage limit or height limit in unincorporated areas17181920
Who to call
Also useful
Fentress County Executive's Office
General county government contact; the county's own zoning and permitting page directs building-permit and zoning questions to this office
101 N Main Street, PO Box 1128, Jamestown, TN 38556
Septic permits
TDEC Cookeville Environmental Field Office, Division of Water Resources
Septic System Construction Permits, alternative-system permits, and construction/final inspections for Fentress County, one of the counties this field office serves
1844 Foreman Dr, Suite 101, Cookeville, TN 38501
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in Fentress 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 Fentress County, Tennessee?
Not a county building permit in unincorporated Fentress County, Tennessee: the county states it has no special building permit requirements, though all state laws for permits and inspections must be followed.1 Fentress County is listed as opted out of Tennessee's State Residential Building Program.2 In this opt-out jurisdiction, an owner or contractor may request a State Fire Marshal inspection during new-home construction or an addition.9 If the inspected home meets statewide building construction safety standards, the State Fire Marshal can release a certificate of occupancy.10 That inspection is available by request, not established as a generally mandatory county inspection.9
Inside the City of Jamestown, zoning laws apply and building permits are required.3 The state lists Jamestown and Allardt separately from the county's opt-out status, so confirm the town's rule before assuming the county answer applies there.21 Septic permits are not a city matter anywhere in the county; they come from the state, as covered below.4
Who issues building permits and zoning approval in Fentress County?
Unincorporated Fentress County does not run a building permit process, and the county directs building permit and zoning questions to the Fentress County Executive's Office.122 The optional inspection route for a new home or addition is through the State Fire Marshal because Fentress County is an opt-out jurisdiction.29
Inside Jamestown, the city has adopted a residential code and a building permit process, and its municipal code publishes valuation-based and project-specific fees.2324 Septic stays separate for city and country addresses alike: the Tennessee Division of Water Resources administers septic permits and inspections through the appropriate Environmental Field Office, which for Fentress County is TDEC's Cookeville office.425
Does Fentress County have zoning?
Unincorporated Fentress County has no county zoning regulations or county zoning districts, although deed restrictions and state permit or inspection laws can still govern a project268. As a result, county zoning sets no minimum dwelling size or minimum lot size there1617. County zoning also sets no setback, lot-coverage limit or building-height limit in the unincorporated area181920. Because there is no countywide zoning ordinance, unincorporated Fentress County places no county zoning restriction on accessory dwellings, manufactured-home occupancy or temporary camping27. Deed restrictions, sanitation requirements and other state rules can still apply. None of that holds inside the City of Jamestown, where city zoning and building permits apply.3
Who issues septic permits in Fentress County, and how do they work?
The Tennessee Division of Water Resources, not Fentress County or the City of Jamestown, administers septic permits and inspections here4. Construction, modification or repair of a septic system requires a state permit12. A new conventional system permit costs $400 for up to 1,000 gallons per day, while a new alternative-system permit costs $500 at that design flow; repair permits carry no permit fee, although inspection fees can apply12. Only 21.3% of county soils are rated without severe limits for a conventional drain field, so secure the site evaluation before fixing a house location28. The installer must arrange the final inspection before covering the system29. Electrical-service processing also requires notice of public sewer service, a septic application or use of an existing system30.
Can you live in an RV or tiny home on your land in Fentress County?
We could not confirm whether long-term residential RV occupancy is allowed in unincorporated Fentress County; ask the County Executive's Office before planning to live in one22. Unincorporated Fentress County has no county-zoning minimum dwelling size, but deed restrictions and applicable state rules can still control a tiny-home project16. Tennessee specifically prohibits modifying a ready-removable structure for residential, recreational or emergency housing; the state definition covers a structure without a foundation, footings or another support mechanism that prevents easy relocation15. Inside Jamestown, a house trailer or portable building may not be parked, located or occupied unless it meets the rules for stationary structures, conforms to city zoning and first receives a building-official permit31. The city provision does not separately define an RV, so ask Jamestown whether it covers a particular vehicle31. A qualifying septic system still needs TDEC approval12.
What are the steps to build a home in Fentress County?
- Confirm whether the parcel is unincorporated or inside Jamestown, where city zoning and building permits apply3.
- Read the deed for private restrictions even though unincorporated Fentress County has no zoning26.
- Apply through TDEC's Cookeville Environmental Field Office for the septic permit before installation425.
- If using the owner-builder exemption, keep the residence for your own use and follow its frequency and licensing limits14.
- Decide whether to request State Fire Marshal inspection and a possible certificate of occupancy for the home910.
- Obtain a TDOT permit before constructing or changing a driveway on state-highway right-of-way32.
- Have TDEC inspect the septic system before it is covered29.
What should you check before buying land in Fentress County?
Only 21.3% of county soils are rated without severe limitations for a conventional drain field, so get a site evaluation before fixing the house location28. The county is 78.1% wooded, and 57.2% of its land has a slope of 15% or less, so inspect clearing and grading needs on the actual parcel3334. Confirm whether the land is inside Jamestown because that changes the zoning and building permit process3. For mapped flood-hazard land, local review may be required before construction, fill, grading, excavation, a manufactured home or an accessory structure; ask the local floodplain administrator because requirements vary by community35. A driveway connecting to state-highway right-of-way needs a TDOT permit32.
Watch-outs
- Inside the City of Jamestown, city zoning and building permits apply, but septic permits still come from TDEC rather than the city.34
- Fentress County has no county zoning districts today, and Tennessee's agricultural zoning exemption would be conditional rather than blanket if county zoning applied836.
- We could not confirm a specific long-term RV or camping right on private land in unincorporated Fentress County, while Jamestown requires house trailers and portable buildings to meet city zoning, building and permit conditions731.
- A tiny home built without a foundation, footings, or similar support (a "ready-removable") is prohibited as residential housing statewide in Tennessee, no matter what county rules do or don't say15.
Sources
- Zoning - Fentress County, quoted and re-checked
- Residential Jurisdictions & Inspectors, quoted and re-checked
- Zoning - Fentress County, quoted and re-checked
- Online Application for Septic Related Services, quoted and re-checked
- Zoning - Fentress County (2026 county census)
- Zoning - Fentress County, quoted and re-checked
- Zoning - Fentress County (2026 county census)
- Zoning - Fentress County, quoted and re-checked
- Tennessee Fire Marshal's Office Residential Permits Residential Jurisdictions & Inspectors, quoted and re-checked
- Tennessee Fire Marshal's Office Residential Permits Residential Jurisdictions & Inspectors, quoted and re-checked
- TDEC - Subsurface Sewage Disposal Systems (SSDS) (2026 county census)
- Subsurface Sewage Disposal System Construction Permit, quoted and re-checked
- Tennessee State Fire Marshal Residential Permits (2026 county census)
- tn.gov, quoted and re-checked
- Public Guidance: Ready-Removables and Non-Traditional Homes, quoted and re-checked
- Zoning - Fentress County, quoted and re-checked
- Zoning - Fentress County, quoted and re-checked
- Zoning - Fentress County, quoted and re-checked
- Zoning - Fentress County, quoted and re-checked
- Zoning - Fentress County, quoted and re-checked
- Tennessee Fire Marshal's Office Residential Permits: Residential Jurisdictions & Inspectors, quoted and re-checked
- Fentress County Executive's Office (fentresscountytn.gov)
- City of Jamestown Municipal Code, quoted and re-checked
- City of Jamestown Municipal Code, quoted and re-checked
- TDEC Cookeville Environmental Field Office, Division of Water Resources (tn.gov)
- Zoning - Fentress County, quoted and re-checked
- Tennessee law on county zoning and building authority
- 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
- Subsurface Sewage Disposal System Frequently Asked Questions, quoted and re-checked
- Online Application for Septic Related Services, quoted and re-checked
- Municipal Code of the City of Jamestown, Tennessee, quoted and re-checked
- Highway Entrance Permits, quoted and re-checked
- Wooded share of land: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Statewide Floodplain Administrator Directory, quoted and re-checked
- Exemption from County Zoning Regulation for Buildings on Land Used for Agriculture, quoted and re-checked
Written October 9, 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.