Bolthole Index

Warren County, Tennessee

Building permits, zoning and land rules in Warren County, Tennessee

74Index Score / 100
#39 of 95 in Tennessee

Warren County, Tennessee requires building permits and administers its own locally adopted building codes through the county Building & Environmental Codes Department12. Countywide zoning for unincorporated Warren County could not be confirmed, although airport zoning and municipal zoning apply in particular areas34. TDEC handles septic permitting and inspection56.

At a glance

Building permit
Required; Warren County administers locally adopted building codes12
Zoning
Countywide zoning for unincorporated land is unconfirmed; municipal and airport-area rules may apply34
Septic permits
TDEC Division of Water Resources handles permits and inspections56
RV living
Long-term occupancy on private land is unconfirmed; ask the county codes office7
Tiny homes
Occupancy rules and minimum dwelling size are unconfirmed; a dwelling still needs county code review17
Owner-builder
Allowed for an individual-use residence, subject to Tennessee's conditions8
State-highway driveway
TDOT permit required before construction or a change in use9

Who to call

Building permits

Warren County Building & Environmental Codes Department

Building permits and inspections, subdivision regulations, mobile home park regulations, and airport zoning regulations

(931)- 474-2633

[email protected]

Online permits →

Septic permits

TDEC Cookeville Environmental Field Office — Division of Water Resources

Division of Water Resources assistance and septic-related inquiries for Warren County

931-206-6329

[email protected]

1844 Foreman Dr, Suite 101, Cookeville, TN 38501

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 Warren County, Tennessee?

Yes. Warren County requires building permits and operates its own code program through the Building & Environmental Codes Department1. The county has adopted the International Codes and identifies building permits and inspection among the department's responsibilities27. The department also publishes general, residential single-family, deck and pool permit forms, so start with the form matching the proposed work10. Warren County publishes construction guidelines and fee information, but the reviewed county page does not expose the individual local fee amounts; ask the department for the current total before budgeting117.

Who is the Warren County building department, and how do you reach it?

The Warren County Building & Environmental Codes Department handles building permits and inspections and also administers subdivision, mobile-home-park and airport-zoning materials7. Call the department at (931)- 474-2633 or email [email protected]; its posted hours are Monday through Friday, 8 a.m. to 4:30 p.m.7. The county provides an online application portal and publishes a residential single-family permit application710. The county says an average home, office or factory receives 10 inspections, so coordinate required inspection points before covering work or scheduling later trades7.

Does Warren County have zoning?

A comprehensive countywide zoning resolution for unincorporated Warren County could not be confirmed. The county does identify airport zoning regulations and subdivision regulations for the Warren County Planning Region, so those narrower controls may affect a parcel even when general county zoning status is unclear312. Municipal rules are separate: land inside McMinnville must conform to the city's applicable zoning district, and Morrison also has municipal zoning134. Before relying on a seller's claim that land is unzoned, give the parcel number and location to the county codes office and, if applicable, the municipality7.

How do septic permits work in Warren County?

TDEC's Division of Water Resources handles subsurface sewage disposal permitting and inspection in Warren County56. A Septic System Construction Permit is required before installing a system or repairing a faulty system, and the application may require soils information or an engineered design depending on the project14. The Cookeville Environmental Field Office serves Warren County; direct septic questions to 931-206-6329 at 1844 Foreman Dr, Suite 101, Cookeville, TN 3850115. About 35% of county soils are rated without severe limitations for a conventional drain field, so make septic suitability a purchase contingency rather than assuming every homesite will support a conventional system16.

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

Warren County's rules for long-term RV occupancy, temporary camping, and tiny-home occupancy could not be confirmed. Do not treat that gap as permission: ask the Building & Environmental Codes Department about the parcel, proposed utilities, length of stay and whether the unit will be a permanent dwelling7. A tiny home used as a residence still enters a county where building permits are required and locally adopted codes are enforced12. Mobile-home-park regulations are published, but that fact alone does not answer the rules for one manufactured home or RV on an individual tract7.

Building a home in Warren County: the steps, in order

  1. Ask the Warren County Building & Environmental Codes Department to confirm the parcel's building, subdivision, airport-area and municipal-jurisdiction requirements712.
  1. Apply for the county building permit using the appropriate published form or online portal107.
  1. Obtain the TDEC Septic System Construction Permit before septic installation or repair, then arrange the required inspection and approval after installation146.
  1. If acting as owner-builder, follow Tennessee's individual-use restriction and contractor-licensing conditions8.
  1. Schedule county inspections at the stages the codes office specifies7.
  1. If access connects to a state-highway right-of-way, obtain the TDOT driveway permit before construction or a change in use9.

What should you check before buying land in Warren County?

Verify jurisdiction first: McMinnville and Morrison zoning is distinct from the unresolved countywide zoning question, while airport zoning and subdivision regulations can apply in narrower areas4312. Make the offer contingent on septic suitability because only about 35% of Warren County soils are rated without severe limitations for a conventional drain field16. Confirm legal road access and obtain a TDOT permit if the driveway connects to state-highway right-of-way9. Also check terrain on the actual building pad: about 73% of county land has a slope of 15% or less, but a countywide average cannot establish whether one parcel is buildable17.

Watch-outs

  • Countywide zoning for unincorporated Warren County remains unconfirmed; municipal zoning, airport zoning and subdivision regulations can still affect a parcel4312.
  • Long-term RV living, tiny-home occupancy, setbacks and minimum dwelling size could not be confirmed; ask the Warren County Building & Environmental Codes Department about the exact parcel and proposed use7.
  • A qualifying Tennessee utility may require a building on an abutting parcel to connect to an available sanitary sewer, so verify sewer availability before planning septic18.

Sources

  1. Warren County Building & Environmental Codes (2026 county census)
  2. Building & Environmental Codes, quoted and re-checked
  3. Building & Environmental Codes, quoted and re-checked
  4. Official Zoning Code of the City of McMinnville, Tennessee, quoted and re-checked
  5. Online Application for Septic Related Services, quoted and re-checked
  6. Subsurface Sewage Disposal System Installer, Pumper and Land Disposal Permits, quoted and re-checked
  7. Warren County Building & Environmental Codes Department (warrencountytn.gov)
  8. Can I build my own home without a license? (Tennessee statewide rule), quoted and re-checked
  9. Highway Entrance Permits (Tennessee statewide rule), quoted and re-checked
  10. Building & Environmental Codes, quoted and re-checked
  11. Building & Environmental Codes, quoted and re-checked
  12. Building & Environmental Codes, quoted and re-checked
  13. Official Zoning Code of McMinnville, Tennessee, quoted and re-checked
  14. Septic System Construction Permit (Tennessee statewide rule), quoted and re-checked
  15. TDEC Cookeville Environmental Field Office — Division of Water Resources (tn.gov)
  16. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  17. Share of land at 15% slope or less: Bolthole Index county data
  18. Utility Customers Frequently Asked Questions (Tennessee statewide rule), quoted and re-checked

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.

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County locator

Warren County in Tennessee

74
County map
Warren County highlighted among the Tennessee counties · colored by Index score

How Warren County scores

Seclusion42100% ev.
Self-Sufficiency75100% ev.
Admin Boringness58100% ev.
Durability69100% ev.
Property Autonomy71100% ev.
Carry Cost77100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$262kTypical home
0.4%Property tax
$6,580Land / acre
57.1"Annual rain
4.5% of yrsSevere drought
5.4 / yr (+5.2)Mid-century 100°F days
13.3 daysMid-century dry spell
2.56" (+8.3%)Mid-century 1-day rain
1.53×Wildfire change factor
100%Forward climate coverage
$1,667Home insurance / yr
1% / yrInsurance growth
1.39%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
47,596People within 30 min
3,652,447People within 2 hr
56,342Radius comparison (15 mi)
98.5People / sq mi
0.3%Federal land
73%Land at 15% slope or less
34.7%Septic soil without severe limits
94,923 acWorkable land screen
48.5%Wooded land
52.9 tonsBiomass / forest ac
58°FAvg temp

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Answers from the rulebook for Warren County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Warren County rules

  • Building code adoptedAdopted

    Building-code administration identified by Warren County Building & Environmental Codes.

    “The International Codes, which Warren County has adopted”
  • Local zoningVaries (with conditions)

    Aggregate local zoning within Warren County, including municipal zoning administered by the City of McMinnville and Town of Morrison; this claim does not assert that Warren County administers each municipal ordinance.

    • McMinnville zoning applies within the City of McMinnville; its official zoning map is the final authority for current zoning status within the municipality.
    • Morrison zoning applies within the Town of Morrison under Ordinance #96-02 and amendments thereto.
    • The Morrison municipal code states that ordinances passed since the last code update may not appear in the code and directs users to the town's ordinance book or city recorder for a comprehensive and up-to-date review.
    • The existence or absence of a separate countywide zoning resolution for unincorporated Warren County remains unresolved.
    “Land use within the Town of Morrison shall be governed by Ordinance #96-02, titled "Zoning Ordinance, Morrison, Tennessee," and any amendments thereto.”
    One more reviewed finding on this topic
    • Present (with conditions) — Airport zoning regulations administered by Warren County within the applicable airport zoning district or regulated area.
      “The Warren County Building & Environmental Codes Department is responsible for enforcing a variety of codes, acts and regulations which have been established in Warren County, including: [...] Airport Zoning Regulations: Revised & Recorded Versions 2010”
  • Subdividing landRegulated (with conditions)

    Subdivision activity within the Warren County Planning Region.

    • The county page identifies subdivision regulations for the Warren County Planning Region; detailed numeric requirements and exceptions were not accessible in the reviewed webpage text.
    “Subdivision Regulations for Warren County Planning Region”
  • Permit feesPublished

    Warren County building-permit fee information.

    • The county page identifies a construction-guidelines-and-fees document as taking effect January 1, 2020; the accessible page did not expose the individual fee amounts.
    “Construction Guidelines and Fees - Takes effect Jan. 1, 2020”
  • Permit processPublished

    Warren County building-permit application process.

    • The county publishes an online application link and separate general, residential single-family, deck, and pool permit forms.
    “Warren County Residential Single Family Permit App”
  • County-wide zoningAbsent

    County lists Subdivision Regulations for the Warren County Planning Region and Environmental Regulations but no countywide zoning resolution was found.

    Warren County Codes Documents & Links ↗Scouted from the county site, not yet independently re-checked

Tennessee rules that apply here

  • Building permitLimited

    State residential building permits for one- and two-family dwellings and townhouses in Tennessee jurisdictions where the State Fire Marshal's Office administers the residential building permit program.

    • The state permit is required only in some areas because other jurisdictions may enforce local residential building codes.
    • A county legislative body may remove unincorporated areas from the state program or a city legislative body may remove the city by a two-thirds vote.
    • The state permit does not replace grading or fill approval, floodplain compliance, septic or sewer permits, electrical permits, or zoning approval.
    • Local governments remain responsible for locally adopted codes and other requirements.
    “Why is the state residential building permit only required in some areas of the state?”
  • Owner-builder exemptionConditional

    A Tennessee property owner constructing a single residence for the owner's individual use.

    • The owner may have one permit every two years.
    • The residence must not be for sale, lease, or rent.
    • If the owner hires a contractor, the contractor is a prime and must be licensed and obtain the building permit for inspections.
    • Contracts may not be split into phases to circumvent the licensing law.
    • Anyone paid more than $25,000 by the owner is considered a prime and must be licensed.
    • The exemption is based on TCA 62-6-103 and Rule 0680-1-.22.

    owner permits: per 1 permit per two years · contractor payment threshold: > 25000 USD (Anyone paid in excess of this amount is considered a prime and must be licensed.)

    “one permit every two years to build their home as long as it is not for sale, lease, or rent (individual use).”
  • Certificate of occupancyLimited

    Certificates of occupancy for one- and two-family dwellings in Tennessee opt-out or non-code jurisdictions when the State Fire Marshal's Office inspects the dwelling during construction.

    • The owner or contractor may obtain a state building permit to request the inspection.
    • The Certificate of Occupancy is released only if the dwelling is determined to meet statewide building construction safety standards.
    • The source describes this process for opt-out or non-code jurisdictions and for new construction or additions to existing homes.
    “determined to meet the statewide building construction safety standards, the State Fire Marshal’s Office will release a Certificate of Occupancy”
  • Who permits septicState

    Subsurface sewage disposal permitting and inspection for Warren County, a non-listed Tennessee contract county.

    • TDEC lists the contract counties as Blount, Davidson, Hamilton, Jefferson, Knox, Madison, Sevier, Shelby, and Williamson; Warren County is not listed.
    • Third-party submissions for non-contract counties are handled through TDEC.
    • Local environmental field-office coordination may still be required.
    “Blount County, Davidson County/Nashville, Hamilton County, Jefferson County, Knox County, Madison County, Sevier County, Shelby County & Williamson County”
  • Septic permitRequired

    Installation of a subsurface sewage disposal system on property in Tennessee, and repair of an existing faulty system.

    • A Septic System Construction Permit is required before installation or repair.
    • The application requires site and system information; soils maps may be required and large conventional or alternative systems require a licensed-engineer design.
    • The review generally takes 10 days and must be completed within 45 days.
    • New conventional permit fee is $400 up to 1,000 gallons per day, plus $100 for each additional 1,000 gallons per day.
    • New alternative permit fee is $500 up to 1,000 gallons per day, plus $150 for each additional 1,000 gallons per day.
    • Experimental SSDS permit fee is $500.
    • Repair permits have no permit fee; repair construction inspection fee is $100.
    • Contract counties Blount, Davidson, Hamilton, Jefferson, Knox, Madison, Sevier, Shelby, and Williamson may require an additional permit.

    new conventional SSDS permit fee: 400 USD up to 1000 gallons per day design flow ($100 for each additional 1000 gpd flow) · new alternative SSDS permit fee: 500 USD up to 1000 gallons per day design flow ($150 for each additional 1000 gpd flow) · experimental SSDS permit fee: 500 USD · repair permit fee: No permit fee

    “Any individual or property owner who desires to have a subsurface sewage disposal (septic) system installed on their property or requiring repair to an existing faulty system must get a Septic System Construction Permit.”
  • Septic inspectionRequired

    SSDS installations in Warren County.

    • The installer must notify the Division when the system has been installed so it can be inspected and approved.
    • The Division may inspect each SSDS installation for compliance with permit conditions and regulatory requirements.
    “must notify the Division when a system has been installed so that it can be inspected and approved”
  • Mandatory utility hookupSewer (with conditions)

    Residential, commercial, or industrial buildings on lots or parcels abutting a street or other public way containing a sanitary sewer, where the applicable Tennessee utility system has issued bonds payable for sewer services.

    • The cited Tennessee statute grants qualifying utility systems authority to require connection.
    • The building must exist on the abutting lot or parcel.
    • The owner, tenant, or occupant may be required to cease using other means for disposal of sewage, sewage waste, or other polluting matter.
    • This source describes authority to require sewer connection; it does not establish that every Tennessee property has sewer available.
    “Utility systems within the State of Tennessee that have issued bonds payable for sewer services are granted authority in TCA § 7-35-201 (1) to "require the owner tenant or occupant of each lot or parcel of land that abuts upon a street or other public way containing a sanitary sewer and upon which lot or parcel a building exists for residential, commercial or industrial use, to connect the building with the sanitary sewer and to cease to use any other means for the disposal of sewage, sewage waste or other polluting matter."”
  • Agricultural exemptionConditional

    Buildings or structures on land used for agricultural purposes and subject to county zoning regulation in Tennessee.

    • The building or structure must be located on lands devoted to agricultural uses.
    • The building or structure must be incidental to the agricultural enterprise.
    • The exemption does not apply to agricultural lands adjacent or in proximity to state or federal-aid highways, public airports, or public parks.
    • The exemption does not apply to land located within the one-hundred-year flood plain.
    • The Attorney General opinion states that the provision applies to counties only and has no application to municipalities.
    • There is no blanket exemption for cotton gins, grain elevators, slaughterhouses, processing plants, or milk bottling plants; those structures qualify only when the statutory conditions are met.
    “it must be located on lands “devoted to agricultural uses;” and (2) it must be “incidental to the agricultural enterprise.””
  • Driveway accessLimited

    Construction, modification, revision, or change in use of a driveway on Tennessee state highway right-of-way.

    • The requirement applies to state highway right-of-way and does not establish a permit requirement for every driveway on every road.
    • Property owners must obtain the permit from TDOT.
    • County or municipal land-use regulations may also apply.
    “Under state law, a permit is required before construction of a driveway on state highway right-of-way, including the modification, revision, or change in use”
  • county zoning authorityGeneral

    County legislative bodies adopting zoning regulations for portions of Tennessee counties outside municipal corporations.

    • The authority is exercised under the conditions and procedures in Tennessee Code Annotated §§ 13-7-101 through 13-7-119.
    • The grant applies to portions of counties outside municipal corporations.
    • County zoning authority does not authorize county building permits or regulation of buildings or structures on agricultural land when the building or structure is incidental to the agricultural enterprise, except on agricultural lands adjacent or in proximity to state federal-aid highways, public airports or public parks.
    • The agricultural-land limitation applies to counties only and has no application to municipalities.
    “Under Tenn. Code Ann. § 13-7-101, et seq., the General Assembly has expressly delegated the authority to county legislative bodies to enact zoning regulations and create a board of zoning appeals.”

Inside cities and towns in Warren County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

  • Local zoningPresent (with conditions)

    Land and structures within the City of McMinnville, Warren County, Tennessee.

    • Use, construction, additions, movement, or other changes must conform to the regulations for the applicable zoning district.
    • The code includes district-specific regulations, and the quoted provision is subject to exceptions stated elsewhere in the code.
    “Except as otherwise provided, no structure or land shall after the effective date of the Official Zoning Code be used and no structure or part thereof shall be erected, made addition to, or moved unless in conformity with the regulations herein specified for the district in which it is located.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Inspections — Countywide building inspections.
  • Minimum dwelling size — Minimum dwelling size in Warren County.
  • Minimum lot size — Minimum lot size in Warren County.
  • Setbacks — Building setbacks in Warren County.
  • Lot coverage — Lot coverage in Warren County.
10 more unanswered
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Off-grid sanitation
  • Well permit
  • Building in a floodplain
  • Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Warren County, Tennessee

Is Warren County a good place to live off-grid or homestead?

Warren County scores 74/100 on the Bolthole Index, a strong county profile. Its strengths: manageable long-term carry cost and strong self-sufficiency basics: 57.1″/yr rainfall plus 48.5% wooded land. Watch-outs: about 47,596 people within a 30-minute drive.

Do you need a building permit in Warren County, Tennessee?

Warren County generally requires a residential building permit, and it has no county-wide zoning. Onsite septic is permitted by Tennessee Department of Environment and Conservation (TDEC) - Division of Water Resources. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Warren County, Tennessee?

Land in Warren County runs about $6,580 per acre, based on the latest county data.

What is the water situation in Warren County?

Warren County gets about 57.1" of rain a year, with severe drought in roughly 4.5% of years.

How remote is Warren County?

A representative private-land location has about 47,596 people within a 30-minute drive and 3,652,447 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

Going off-grid in Warren County means bringing your own water and power. The kit we’d start with:

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How Warren compares in Tennessee

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