Building permits, zoning and septic rules across Tennessee's counties

At a glance

Residential building permits

19 counties: not required; 17: limited; 59: required¹⁶⁷

Countywide zoning

27 counties without; 54 with; 14 unconfirmed²⁸⁹

No residential permit and no countywide zoning

10 counties¹⁰

Septic permits

TDEC in non-contract counties; contract counties handle their own applications³

RV living

26 county answers: 10 allowed, 2 temporary-only, 12 limited, 2 prohibited⁴

Tiny homes

21 county answers: 11 allowed, 10 limited⁵

Owner-builder

Conditional exemption for a residence for individual use, not sale, lease or rent¹¹

Property tax

Median county effective rate: 0.5%; median county bill: $865 annually¹²

Who to call

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Which Tennessee counties don't require a building permit?

For unincorporated land, 19 Tennessee counties do not require a residential building permit, 17 require one only in some cases, and 59 require one.¹⁶⁷ The first counties to consider without a residential building permit are Pickett County, Stewart County, Hancock County, Bledsoe County, Humphreys County, Lewis County, Houston County, Decatur County.¹ Use the Tennessee no-building-codes list to compare those counties.¹

The State Fire Marshal’s residential program applies where local enforcement or an opt-out does not displace it, using the 2018 residential and energy codes with amendments.¹³ State-program building permits are purchased online or from an Issue Agent, with foundation, framing/rough-in and final inspections.¹⁴ Tennessee’s owner-builder exemption covers a residence for individual use, not sale, lease or rent; it allows one permit every two years and requires licensing for anyone paid more than $25,000.¹¹ See the owner-builder county list alongside the state exemption conditions.¹¹

Which Tennessee counties have no zoning?

Tennessee has 27 counties without countywide zoning and 54 with countywide zoning; we could not confirm zoning in 14 counties.²⁸⁹ Counties without countywide zoning include Fentress County, Stewart County, Hancock County, Van Buren County, Lewis County, Clay County, Hardin County, Houston County.² Compare the Tennessee no-zoning list.²

For buyers seeking both fewer building approvals and no countywide zoning, 10 counties have neither a residential building-permit requirement nor countywide zoning, led by Stewart County, Hancock County, Lewis County.¹⁰ The no-building-codes and no-zoning list narrows that search.¹⁰ Tennessee’s agricultural county-zoning exemption requires structures incidental to an agricultural enterprise and has highway, airport, park and floodplain exceptions; the exemption does not apply to municipalities.¹⁵

Who issues septic permits in Tennessee?

Tennessee’s county totals identify a state septic agency in 87 counties, a multi-county health district in 2 and a county office in 6, with TDEC the most commonly named agency.¹⁶ For application routing, the state’s contract-county list names Blount, Davidson, Hamilton, Jefferson, Knox, Madison, Sevier, Shelby and Williamson; applications for those locations go directly to the contract county.³

Tennessee requires a septic permit before construction, modification or repair, and the septic permit should precede building-pad work.¹⁷ A conventional system permit costs $400 and an alternative system permit $500 for design flow up to 1,000 gallons per day; higher flows carry additional fees.¹⁷ Construction inspections cost $100 for a new conventional system or $200 for an alternative system, and the system must be inspected before covering.¹⁸ TDEC conducts a site evaluation, so resolve wastewater feasibility before committing to a house location.¹⁹

Can you live in an RV or tiny home on your land in Tennessee?

Tennessee RV occupancy has county-specific answers for 26 counties: 10 allow it, 2 allow temporary occupancy only, 12 have limits and 2 prohibit it; the other 69 are unanswered, not presumed allowed.⁴ The allowed group starts with Van Buren County, Lewis County, Overton County, but those answers concern county land-use restrictions, with septic and other requirements still relevant.⁴ Explore the Tennessee RV-living list.⁴

Tiny-home occupancy has answers for 21 counties: 11 allowed and 10 limited, leaving 74 unanswered.⁵ The allowed group begins with Stewart County, Overton County, Henry County; these county land-use answers do not settle building-code or wastewater compliance.⁵ Compare the Tennessee tiny-home list.⁵ We could not confirm a statewide private-land occupancy answer for either housing type; ask the parcel’s building and zoning authority and TDEC’s SSDS Program before planning residential use.⁴⁵¹⁹

Where are the best Tennessee counties for a bolthole?

The highest Bolthole Index scores belong to Fentress County, Pickett County, Stewart County, Hancock County, Van Buren County, Bledsoe County, Humphreys County, Lewis County.²⁰ Fentress scores 91 and has limited residential building-permit requirements, no countywide zoning and state septic administration; Pickett scores 89 and has no residential building-permit requirement, unconfirmed zoning and state septic administration.²⁰ Stewart scores 88 and combines no residential building-permit requirement, no countywide zoning and state septic administration.²⁰

For a cost comparison, the median county farmland value is $5,222 per acre; the lowest-value counties start with Chester County, Hardeman County, Decatur County.²¹ Tennessee’s median county effective property-tax rate is 0.5%, and its median county tax bill is $865 annually.¹² Use those medians as county comparison figures rather than a parcel quotation, and pair the shortlist with septic feasibility and local floodplain review before buying.^21121922

What should Tennessee buyers know about water, wells and access?

Tennessee’s water-rights summary describes a riparian regime, with withdrawal registration above 10,000 gallons per day and agricultural and domestic exemptions.²³ Shelby County is listed within the Shelby County Ground Water Quality Control Board managed area for the Memphis Sand aquifer.²³ We could not confirm a separate statewide property-owner well-permit requirement; ask TDEC’s Water Well Program about the proposed well, distinguishing withdrawal registration from drilling requirements.²⁴

A Tennessee utility system with the specified sewer-bond authority may require an existing building to connect when its parcel abuts a public way containing sanitary sewer.²⁵ For access, construction or a change to an existing driveway on state highway right-of-way requires a TDOT permit, including a change in use.²⁶ Floodplain development is reviewed locally, so contact the city administrator inside city limits or the county administrator outside them before grading or placing structures in a regulated floodplain.²²

Watch-outs

• Tennessee county zoning counts concern unincorporated land; county zoning authority stops at municipal corporations.²⁷
• Tennessee residential-code opt-out resolutions expire after legislative elections unless renewed, so confirm current coverage with the State Fire Marshal’s Office before building.¹³
• No residential building permit does not remove Tennessee septic requirements or local floodplain review; ask the county floodplain administrator outside city limits and the city administrator inside them.¹⁷²²
• We could not confirm the current Tennessee conditions for composting toilets or pit privies; ask TDEC’s SSDS Program about the proposed sanitation system before buying.¹⁹

Sources

1. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties that do not require a residential building permit in unincorporated areas
2. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties with no county-wide zoning
3. Tennessee: Septic System Construction Permit, quoted and re-checked
4. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties' answers on living in an RV on your own land
5. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties' answers on living in a tiny home on your own land
6. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties that require a residential building permit only in some cases (for example floodplain or certain structures)
7. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties that require a residential building permit in unincorporated areas
8. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties with county zoning
9. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties whose building-permit or zoning answer we could not confirm
10. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Tennessee counties with neither a residential building permit nor county-wide zoning
11. Tennessee: Can I build my own home without a license?, quoted and re-checked
12. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Median of Tennessee's county effective property tax rates and median county property tax bills
13. Tennessee: Tennessee State Fire Marshal's Office Currently Adopted Codes, quoted and re-checked
14. Tennessee: Residential Permits, quoted and re-checked
15. Tennessee: Exemption from County Zoning Regulation for Buildings on Land Used for Agriculture, Opinion No. 22-07, quoted and re-checked
16. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Who issues septic permits across Tennessee's counties: a state agency, a multi-county health district, or the county
17. Tennessee: Septic System Construction Permit, quoted and re-checked
18. Tennessee: Subsurface Sewage Disposal System (SSDS) Frequently Asked Questions, quoted and re-checked
19. TDEC Division of Water Resources — SSDS Program (tn.gov)
20. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: The 8 highest-scoring Tennessee counties on the Bolthole Index (off-grid and homestead land score out of 100), with each one's building-permit, zoning and septic answers
21. Bolthole Index county rulebook, 95 Tennessee counties, as of October 15, 2026: Median farmland value per acre across Tennessee's counties (USDA census, the middle county's value; USD/acre), with the five least expensive counties
22. Tennessee: Statewide Floodplain Administrator Directory, quoted and re-checked
23. Tennessee water rights and groundwater management: National Agricultural Law Center and Bolthole Index groundwater review
24. TDEC Division of Water Resources — Water Well Program (tn.gov)
25. Tennessee: Utility Customers Frequently Asked Questions, quoted and re-checked
26. Tennessee: Highway Entrance Permits, quoted and re-checked
27. Tennessee: Tennessee Attorney General Opinion No. 10-108, quoted and re-checked

Written October 10, 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.