Bolthole Index

Wilson County, Tennessee

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

61Index Score / 100
#80 of 95 in Tennessee

Unincorporated Wilson County, Tennessee requires county building permits for new homes, additions, pools and most accessory structures, with zoning approval required first12. Permitted work is inspected, and a passed final inspection is reviewed before the county issues a Certificate of Occupancy34. Septic permits and final septic approval are handled through Tennessee's state process56.

At a glance

Building permit
Required for new homes, additions, major remodels, pools and most accessory structures1
Building codes
Wilson County enforces adopted residential, building, energy, plumbing, mechanical, fuel-gas and existing-building codes7
Zoning
Yes; zoning approval comes before the building permit2
Inspections
Required during permitted construction, including rough-in, insulation and final inspections3
Occupancy
Wait for final approval and the Certificate of Occupancy before moving in4
Septic permit
Required through TDEC for installation, repair or modification58
Owner-builder
The owner of record may apply, subject to Tennessee's owner-builder conditions910
RV or tiny home
Ask Zoning about the parcel and proposed use; tiny-home occupancy and temporary camping rules remain unconfirmed11

Who to call

Building permits

Wilson County Building Codes Department

Building permits and inspections under the adopted International Codes for unincorporated Wilson County

615-444-3025

[email protected]

233 E Gay Street, Courthouse Annex, Lebanon, TN 37087

Zoning

Wilson County Zoning Division

Zoning Compliance Certificates (required before a building permit) and zoning permits for small structures, RVs used as a residence, signs and similar uses

615-444-3025 option 2

233 E. Gay Street, Courthouse Annex, Lebanon, TN 37087

Septic permits

Tennessee Department of Environment and Conservation (TDEC)

Septic System Construction Permits statewide, including Wilson County (Wilson is not one of the nine contract counties with their own local septic program)

(888) 891-TDEC (8332)

Davy Crockett Tower, 500 James Robertson Parkway, Nashville, TN 37243

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

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

Unincorporated Wilson County requires building permits for residential new construction, additions, remodels that change structural loads, use or dwelling type, pools and accessory structures1. The county enforces adopted residential, building, energy, plumbing, mechanical, fuel-gas and existing-building codes7. A residential accessory structure under 200 square feet does not need a building permit, but it still needs a zoning permit; this exception is for an accessory structure, not automatically for a tiny home1. Permitted projects proceed through county inspections, including rough-in, insulation and final inspection, and the required final documents must be submitted before the final can be scheduled3. After the final passes, the Building Official reviews the project before issuing a Certificate of Occupancy4.

Who issues building permits in Wilson County, and how do you reach them?

The Wilson County Building Codes Department is at 233 E Gay Street, Courthouse Annex, Lebanon, TN 37087; call 615-444-3025 or email [email protected]12. The property owner of record or a state-licensed contractor may apply, and a contractor application requires owner-signed, notarized documents9. The department does not process permit applications after 3:30 p.m., and its published payment options are check, cashier's check or money order9. Start across the same annex with the Wilson County Zoning Division at 615-444-3025 option 2, because the county requires an approved Zoning Compliance Certificate before the building-permit application11. An eligible owner may build a home for individual use under Tennessee's owner-builder rules, but the exemption is limited to one permit every two years and does not cover a residence intended for sale, lease or rent10.

Does Wilson County have zoning?

Wilson County has zoning in unincorporated areas, and a Zoning Compliance Certificate must be approved before the Building Codes Department receives the building-permit application213. The county publishes its revised Zoning Ordinance alongside subdivision and flood ordinances, but publication alone does not establish a parcel's district boundaries, setbacks, minimum lot size, minimum dwelling size, height or lot-coverage limits14. Ask the Zoning Division to identify the district and the dimensional standards for the parcel before designing a house or placing an accessory structure. A small residential accessory structure under 200 square feet still needs a zoning permit even though it is exempt from a building permit1. Tennessee's agricultural zoning exemption is conditional: a structure must be on land devoted to agriculture and incidental to that enterprise, and the exemption does not extend to specified highway, airport, park or floodplain settings15.

How do septic permits work in Wilson County?

TDEC's Division of Water Resources administers Wilson County's Septic System Construction Permit process5. A permit is required to install, modify or repair a septic system, and review generally takes 10 days but must be completed within 45 days8. A conventional-system permit costs $400 for design flow up to 1,000 gallons per day, while an alternative-system permit costs $500 for the same design flow; higher flows add fees8. After installation, the installer must contact the local Environmental Scientist for a final inspection before covering the system, and an approved installation receives a Certificate of Completion6. Only about 4.3% of Wilson County soils are rated without severe limits for a conventional drain field, so settle septic feasibility early in the purchase process16. For subdivisions where public connections are impractical, proposed individual water or sewage systems also require Wilson County Health Department approval17.

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

Wilson County's Zoning Division publishes a zoning-permit charge for an RV set up as a primary residence: $0.70 per square foot, plus a $5,000 Adequate Facilities Tax when applicable11. That fee information supports calling Zoning before placement, but it does not answer every question about temporary camping, duration, utility hookups or a particular zoning district. We could not confirm a county rule specifically governing temporary camping. We also could not confirm how Wilson County classifies tiny homes for occupancy or whether a minimum dwelling size applies, so ask the Zoning Division about the proposed structure and parcel. Do not rely on the accessory-structure exception for a tiny home: the under-200-square-foot rule applies to residential accessory structures and substitutes a zoning permit for a building permit1. Any occupied dwelling still needs a lawful sanitation path; septic installation, modification or repair requires a state permit8.

Building a home in Wilson County: what are the steps, in order?

  1. Ask the Zoning Division to identify the parcel's zoning district and approve the required Zoning Compliance Certificate before applying for a building permit214.
  2. Resolve water and wastewater service; where subdivision utility connections are impractical, an individual water or sewage system needs Wilson County Health Department approval17.
  3. Obtain the TDEC septic permit before installation, then keep the system uncovered for the Environmental Scientist's final inspection and Certificate of Completion86.
  4. Apply to the Building Codes Department as the owner of record or through a state-licensed contractor before the 3:30 p.m. processing cutoff9.
  5. Schedule the required building inspections and submit the preliminary final documentation before requesting the final inspection3.
  6. Do not move in until the final inspection has passed and the Building Official has issued the Certificate of Occupancy4.

What should you check before buying land in Wilson County, Tennessee?

Confirm zoning, wastewater and access before treating a parcel as build-ready. The county publishes zoning, subdivision and flood ordinances, but the Zoning Division should confirm the parcel's district and applicable dimensional rules14. Conventional septic suitability is a major constraint: only about 4.3% of county soils are rated without severe drain-field limits16. If public sewer or water connections are impractical in a subdivision, the proposed individual system needs Wilson County Health Department approval17. A driveway connecting to a Tennessee state-highway right-of-way requires a TDOT entrance permit, while we could not confirm a general Wilson County permit rule for driveways on county roads18. The terrain is mostly moderate, with about 83.4% of land at a slope of 15% or less, but parcel-level soils, drainage and flood exposure still need site-specific review19. The effective property-tax rate is about 0.4%, with a median annual bill near $1,7432021.

Watch-outs

  • Do not move into a permitted project before the final inspection and Certificate of Occupancy; premature occupancy carries a $500 fee4.
  • A third failed building inspection costs $300 and triggers a stop-work order3.
  • Do not cover a new or repaired septic system before the local Environmental Scientist completes the final inspection6.
  • The under-200-square-foot exception is for a residential accessory structure and still requires a zoning permit; it does not establish a tiny-home occupancy exception1.

Sources

  1. Building Codes Division, quoted and re-checked
  2. Wilson County Zoning Division (2026 county census)
  3. Inspection Process, quoted and re-checked
  4. Inspection Process, quoted and re-checked
  5. Septic System Construction Permit, quoted and re-checked
  6. Septic System Construction Permit, quoted and re-checked
  7. Building Codes Division, quoted and re-checked
  8. Septic System Construction Permit, quoted and re-checked
  9. Building Codes Division, quoted and re-checked
  10. Can I build my own home without a license? (Tennessee statewide rule), quoted and re-checked
  11. Wilson County Zoning Division (wilsoncountytn.gov)
  12. Wilson County Building Codes Department (wilsoncountytn.gov)
  13. Tennessee Attorney General Opinion No. 10-108 (Tennessee statewide rule), quoted and re-checked
  14. Planning Resources, quoted and re-checked
  15. Exemption from County Zoning Regulation for Buildings on Land Used for Agriculture, Opinion No. 22-07 (Tennessee statewide rule), quoted and re-checked
  16. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  17. Subdivision Regulations, quoted and re-checked
  18. Highway Entrance Permits (Tennessee statewide rule), quoted and re-checked
  19. Share of land at 15% slope or less: Bolthole Index county data
  20. Effective property tax rate: Bolthole Index county data
  21. Median property tax bill: Bolthole Index county data

Written September 29, 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

Wilson County in Tennessee

61
County map
Wilson County highlighted among the Tennessee counties · colored by Index score

How Wilson County scores

Seclusion30100% ev.
Self-Sufficiency67100% ev.
Admin Boringness46100% ev.
Durability70100% ev.
Property Autonomy71100% ev.
Carry Cost69100% 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 →

$508kTypical home
0.4%Property tax
$6,533Land / acre
54.1"Annual rain
2.6% of yrsSevere drought
10.7 / yr (+9.6)Mid-century 100°F days
14.3 daysMid-century dry spell
2.31" (+6.7%)Mid-century 1-day rain
1.57×Wildfire change factor
100%Forward climate coverage
$1,758Home insurance / yr
1.5% / yrInsurance growth
2.53%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
69,843People within 30 min
3,350,064People within 2 hr
179,114Radius comparison (15 mi)
286.7People / sq mi
2.7%Federal land
83.4%Land at 15% slope or less
4.3%Septic soil without severe limits
14,903 acWorkable land screen
53.8%Wooded land
46.5 tonsBiomass / forest ac
58.9°FAvg temp

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Answers from the rulebook for Wilson County

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

Wilson County rules

  • Building permitRequired

    Residential and commercial construction regulated by the Wilson County Building Codes Department.

    • Residential permits cover new construction, additions, major load/use/dwelling-type remodels, pools, and accessory structures.
    • Residential accessory structures under 200 square feet do not need a building permit but require a zoning permit.
    • Commercial accessory structures under 120 square feet do not need a building permit.
    • Commercial projects require plan review.
    “We permit and enforce applicable code standards on the following for residential applications:”
  • Building code adoptedAdopted (with conditions)

    Wilson County Building Codes Department enforcement.

    • Adopted standards listed include the 2021 IRC, 2018 IECC with state-approved amendments, 2021 IBC, IPC, IMC, IFGC, and IEBC.
    “The following are the adopted code standards enforced by the Wilson County Building Codes Department:”
  • InspectionsRequired

    Permitted construction subject to Wilson County building inspections.

    • Rough-in, insulation, and final inspections are listed; preliminary final documentation is required before scheduling final inspection.
    • Failed-inspection fees are $75, $150, and $300 for the first, second, and third failures; the third failure triggers a stop-work order.

    first failed inspection fee: 75 USD · second failed inspection fee: 150 USD · third failed inspection fee: 300 USD (stop work order)

    “7) Final Inspection – All preliminary final documentation must be submitted before this inspection can be scheduled.”
  • Certificate of occupancyRequired

    Permitted projects requiring final approval before occupancy.

    • The Building Official reviews a passed final inspection before issuing the Certificate of Occupancy.
    • Premature move-in or inhabitance before final inspection and issuance incurs a $500 fee.
    • An expired temporary certificate incurs a $300 fee if permanent final inspection is not obtained.

    premature occupancy fee: 500 USD · expired temporary certificate fee: 300 USD

    “After this inspection has been completed and passed, the project will be reviewed by the Building Official prior to issuance of Certificate of Occupancy.”
  • Zoning districtsPublished (with conditions)

    Availability of Wilson County zoning and related planning documents.

    • The county Planning Resources page publishes a link to the revised Zoning Ordinance and separately lists subdivision and flood ordinances.
    • This claim establishes publication of the zoning ordinance resource, not every district boundary or dimensional standard.
    “Zoning Ordinance - Revised July 21, 2026”
  • Mandatory utility hookupConditional

    Subdivision utility systems and proposed individual water or sewage systems.

    • Subdivision plans must show proposed sewer and water systems and connections.
    • When connections are not practical, an individual water supply or sewage disposal system must be approved by the Wilson County Health Department.
    “Plans of proposed sewer and water systems showing connections to the existing or any proposed utility systems, and the locations of fire hydrants. [10-2-75] When such connections are not practical, as determined in accordance with Subsection A.11 of Article IV, any proposed individual water supply and/or sewage disposal system must be approved by the Wilson County Health Department.”
  • Permit processPublished (with conditions)

    Wilson County building and zoning permit application process.

    • Only the property owner of record or a state-licensed contractor may apply.
    • Contractor applications require owner-signed and notarized documents.
    • Applications are not processed after 3:30 p.m.; payment is by check, cashier's check, or money order on the building page.

    daily processing deadline: 3:30 pm

    “The property owner of record or a state-licensed contractor are the only individuals that can apply for building permits in Wilson County.”
  • County-wide zoningPresent

    Wilson County Zoning Division enforces the Wilson County Zoning Ordinance; a Zoning Compliance Certificate is required before a building permit.

    Wilson County Zoning Division ↗Scouted from the county site, not yet independently re-checked

Tennessee rules that apply here

  • 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).”
  • Who permits septicState (with conditions)

    Subsurface sewage disposal system permitting and inspection applicable in Wilson County.

    • TDEC Division of Water Resources administers the state SSDS permit process.
    • Wilson County is not listed among the contract counties on the opened state page; contract counties may require an additional permit.
    “Completed application forms and application fees should be sent to the Division of Water Resources at the appropriate Environmental Field Office.”
  • 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.”
    One more reviewed finding on this topic
    • Required — Installation, repair, or modification of septic systems in Wilson County.
      “A septic system permit is required for the construction, modification or repair of a septic system.”
  • Septic inspectionRequired

    Construction or repair of septic systems in Wilson County.

    • The installer must notify the Division after installation so the system can be inspected and approved.
    • Final inspection occurs before the system is covered.
    • An approved installation receives a Certificate of Completion.
    “When installation is complete, the installer will contact the local Environmental Scientist to schedule a final inspection before the system is covered. If the septic system installation is approved, the Environmental Scientist will issue a Certificate of Completion.”
  • 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”
  • Permit feesPublished (with conditions)

    Residential building permits administered by Tennessee's State Residential Building Code Enforcement Program for one- and two-family dwellings and townhouses where the state program applies.

    • The state program does not apply where a local government enforces local building codes under an exemption or where the city or county has opted out by a two-thirds vote.
    • For construction costs above the maximum listed in the table, an additional fee of $50.00 applies for each additional $50,000 or fraction thereof.
    • The construction cost cannot be less than $60.57 per heated square foot of construction.
    • An HVAC and Plumbing Inspection is required for all new construction.
    • A slab other than Monolith Pour Inspection is required when slab and footing are cast separately.

    permit fee for construction cost $0 to $5,000: 100 USD · permit fee for construction cost $5,001 to $100,000: 350 USD · additional fee for plumbing and HVAC inspection: 100 USD (Applicable as stated in the fee table.) · additional fee for slab other than monolith pour: 100 USD (Applicable when slab and footing are cast separately.)

    “$0 to $5,000 | $100 | $100 | $100 $5,001 to $100,000 | $350 | $100 | $100”
  • 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.”

Still unanswered

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

  • Minimum dwelling size — Minimum dwelling size requirements in Wilson County.
  • Minimum lot size — Minimum lot size requirements in Wilson County.
  • Setbacks — Building setbacks in Wilson County.
  • Lot coverage — Lot coverage limits in Wilson County.
  • Building height — Building-height limits in Wilson County.
7 more unanswered
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Off-grid sanitation
  • Well permit
  • 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 Wilson County, Tennessee

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

Wilson County scores 61/100 on the Bolthole Index, a solid county profile. Its strengths: a stronger property-autonomy legal backdrop and mixed durability signals. Watch-outs: about 69,843 people within a 30-minute drive.

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

Wilson County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Tennessee Department of Environment and Conservation (TDEC). 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 Wilson County, Tennessee?

Land in Wilson County runs about $6,533 per acre, based on the latest county data.

What is the water situation in Wilson County?

Wilson County gets about 54.1" of rain a year, with severe drought in roughly 2.6% of years.

How remote is Wilson County?

A representative private-land location has about 69,843 people within a 30-minute drive and 3,350,064 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 Wilson County means bringing your own water and power. The kit we’d start with:

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How Wilson compares in Tennessee

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