Bolthole Index

Trimble County, Kentucky

Building permits, zoning and land rules in Trimble County, Kentucky

58Index Score / 100
#86 of 120 in Kentucky

Unincorporated Trimble County, Kentucky requires building and zoning permits for a home, with a narrow farmstead exemption for qualifying farm property123. Trimble County Planning & Zoning handles the county applications, while the North Central District Health Department handles onsite sewage permits and inspections45. A permitted structure may not be occupied until the county grants a certificate of occupancy6.

At a glance

Building permit
Required for a home in unincorporated Trimble County1
Zoning
County zoning and a zoning permit apply2
Septic
North Central District Health Department permits and inspects systems57
RV living
Long-term private-land occupancy is unconfirmed; ask Planning & Zoning4
Tiny home
No specific occupancy rule confirmed; zoning and building review still apply12
Farmstead exemption
Conditional exemption for a qualifying farm tract of at least 10 acres3
Private well
Well work must be done by a state-certified driller or assistant8

Who to call

Building permits

Trimble County Planning & Zoning

Building and zoning applications, inspections, temporary-use/camper applications, and farmstead exemption forms for unincorporated Trimble County

(502) 665-1507

[email protected]

68 Wentworth Ave., Bedford, KY 40006

Septic permits

North Central District Health Department – Trimble County Office (Environmental Department)

Onsite sewage permits and inspections for Trimble County

(502) 255-4851

138 Miller Lane, Bedford, KY 40006

Floodplain permits

Trimble County Floodplain Management

Local floodplain permit applications and floodplain guidance

(502) 255-4281

P.O. Box 279, Bedford, KY 40006

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 Trimble County, Kentucky?

Yes. A home in unincorporated Trimble County requires a county building permit and mandatory inspections1. Kentucky applies its statewide residential code, but state law leaves single-family permit and inspection requirements to local ordinance; Trimble County has adopted those local requirements9101. The county publishes a Residential Building Permit Application and a separate zoning application through Planning & Zoning4. For a permitted structure, do not move in until the county grants a certificate of occupancy, and clear all permit-related fees first6. Published county materials also identify permit-renewal and reinspection charges of $100, so confirm the full current fee total before filing11.

Who handles Trimble County building permits, and how do you reach them?

Trimble County Planning & Zoning is the first stop for building and zoning applications in unincorporated Trimble County124. The office is at 68 Wentworth Ave., Bedford, KY 40006; call (502) 665-1507 or email [email protected]4. Its official page provides the Residential Building Permit Application, Zoning Permit Application, Camper Temporary Use Permit Application, and Farmstead Exemption Form for Building4. Planning & Zoning also reviews development proposals against locally adopted plans and regulations, and the county regulates subdivision and land-development proposals412. Ask the office to identify the parcel's zoning district, required reviews, current fee schedule, inspection sequence, and whether the property falls inside municipal limits before designing the project211.

Does Trimble County have zoning?

Trimble County has a countywide zoning ordinance and requires zoning review through Planning & Zoning2. The county's residential application also asks for actual distances to property lines, but we could not confirm numeric setbacks, minimum lot size, minimum dwelling size, lot coverage, or building-height limits from the available county material; ask Planning & Zoning for the standards tied to the parcel's zoning district4. A qualifying farmstead exemption is narrower than a general owner-builder exemption: the tract must be registered as agricultural or horticultural land, contain at least 10 acres in one lot, lie outside municipal corporate limits, and support a dwelling or qualifying farm-incidental building3. Claiming that exemption means building without the permit and inspections, and Trimble County says it cannot issue a certificate of occupancy for the exempt project3.

How do septic permits work in Trimble County?

The North Central District Health Department administers onsite sewage permits and inspections for Trimble County57. Its Trimble County Environmental Department is at 138 Miller Lane, Bedford, KY 40006 and can be reached at (502) 255-485113. Obtain the septic construction permit before installation or alteration; Kentucky requires a site evaluation, system details, fees, and an inspection before backfilling1415. The county residential application requires a Health Department approval certificate for onsite sewage, or a Sewer District certificate when the parcel is sewered16. Existing septic systems may also need a Health Department inspection before a building or remodeling permit for a sale, addition, or post-disaster rebuild17. Only about 3.3% of mapped county soils lack severe limitations for a conventional drain field, so make septic feasibility an early purchase contingency18.

Can you live in an RV or tiny home in Trimble County?

We could not confirm a general rule allowing long-term RV living on private land in Trimble County. Planning & Zoning publishes a Camper Temporary Use Permit Application, so ask that office about duration, hookups, septic approval, and the parcel's zoning before placing or occupying a camper42. Kentucky's protection for sleeping in a lawfully parked vehicle for less than 12 hours concerns public roads, streets, or parking lots; it does not authorize residence in an RV on private land19. We also could not confirm a special tiny-home occupancy rule or minimum dwelling size for Trimble County. A tiny home proposed as a dwelling should therefore be taken to Planning & Zoning for building-code and zoning review before purchase or construction124. Recreational vehicles used as short-term rentals face a separate rule and must be in a permitted RV park with a conditional-use permit20.

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

  1. Call Trimble County Planning & Zoning at (502) 665-1507 to confirm jurisdiction, zoning, applications, fees, and site-plan requirements42.
  2. Ask the North Central District Health Department for a site evaluation and obtain the onsite sewage construction permit before installing or altering a system514.
  3. If access connects to a state highway, apply in writing to the Kentucky Department of Highways District Engineer for the driveway approach21.
  4. If the site is in an identified floodplain, obtain both local and state floodplain permits2223.
  5. Submit the county zoning and residential building applications, then schedule the mandatory county inspections12.
  6. Obtain the separate state plumbing permit; a homeowner may receive one for plumbing in the homeowner's own residence24.
  7. Complete septic inspection before backfilling and obtain the county certificate of occupancy before moving in156.

What should you check before buying land in Trimble County?

Start with septic feasibility: only about 3.3% of mapped soils are rated without severe limits for a conventional drain field, so get the Health Department's parcel-specific evaluation before treating a homesite as buildable1813. Check the flood map because development in an identified floodplain requires both local and state permits2223. Verify legal access, and remember that a new driveway onto a state highway requires a written application to the state District Engineer21. For a private water supply, use a state-certified well driller or assistant; the cited state rule establishes driller certification rather than a separate owner-applied well permit8. As market context, farmland value is about $4,600 per acre, while the median annual property-tax bill is $1,175 and the effective tax rate is about 0.7%252627. About 58.4% of the county is wooded and 52.8% has a slope of 15% or less2829.

Watch-outs

  • The farmstead exemption applies only when the tract and project meet every stated condition; an ordinary non-farm owner-builder exemption could not be confirmed, so ask Planning & Zoning before relying on one34.
  • A county permit renewal and each reinspection can cost $100 under the published materials, and unpaid permit-related fees prevent issuance of the certificate of occupancy116.
  • A Health Department or Sewer District approval certificate must accompany the residential application, depending on how the parcel handles sewage16.

Sources

  1. Fee Schedule for Building Permits (2026 county census)
  2. Planning & Zoning – Trimble County Kentucky (2026 county census)
  3. Trimble County Farmstead Building Exemption Form, quoted and re-checked
  4. Trimble County Planning & Zoning (trimblecountyky.gov)
  5. North Central District Health Department - On-Site Sewage (2026 county census)
  6. Trimble County Planning and Zoning Residential Building Permit Application, quoted and re-checked
  7. Onsite Sewage Disposal Systems Program (Kentucky statewide rule), quoted and re-checked
  8. 401 KAR 6:320. Certification of water well drillers and water well driller assistants (Kentucky statewide rule), quoted and re-checked
  9. 815 KAR 7:120 Kentucky Building Code (Kentucky statewide rule), quoted and re-checked
  10. 815 KAR 7:125, Kentucky Residential Code (Kentucky statewide rule), quoted and re-checked
  11. Planning & Zoning – Trimble County Kentucky, quoted and re-checked
  12. Planning & Zoning – Trimble County Kentucky, quoted and re-checked
  13. North Central District Health Department – Trimble County Office (Environmental Department) (trimblecountyky.gov)
  14. 902 KAR 10:110. Issuance of on-site sewage disposal system permits (Kentucky statewide rule), quoted and re-checked
  15. 902 KAR 10:085. System Installation Inspection (Kentucky statewide rule), quoted and re-checked
  16. Trimble County Planning and Zoning Residential Building Permit Application, quoted and re-checked
  17. On-Site Sewage – North Central District Health Department, quoted and re-checked
  18. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  19. KRS 511.110 — Unlawful camping (Kentucky statewide rule), quoted and re-checked
  20. Trimble County Short-Term Rental Property Ordinance No. 40.0, quoted and re-checked
  21. 603 KAR 1:020 Driveway approaches, entrances; construction and maintenance (Kentucky statewide rule), quoted and re-checked
  22. Find Your Flood Zone (Kentucky statewide rule), quoted and re-checked
  23. Trimble County Floodplain Management (trimblecountyky.gov)
  24. Division of Plumbing Fee Change and Permit Information (Kentucky statewide rule), quoted and re-checked
  25. Farmland value per acre (USDA census): Bolthole Index county data
  26. Median property tax bill: Bolthole Index county data
  27. Effective property tax rate: Bolthole Index county data
  28. Wooded share of land: Bolthole Index county data
  29. Share of land at 15% slope or less: 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.

Found land here? Start a Property Hunt →

County locator

Trimble County in Kentucky

58
County map
Trimble County highlighted among the Kentucky counties · colored by Index score

How Trimble County scores

Seclusion34100% ev.
Self-Sufficiency69100% ev.
Admin Boringness46100% ev.
Durability73100% ev.
Property Autonomy33100% ev.
Carry Cost83100% 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 →

$239kTypical home
0.7%Property tax
$4,600Land / acre
49.6"Annual rain
2.5% of yrsSevere drought
6.6 / yr (+6.2)Mid-century 100°F days
13.3 daysMid-century dry spell
1.95" (+8.1%)Mid-century 1-day rain
1.78×Wildfire change factor
100%Forward climate coverage
$1,621Home insurance / yr
-0.4% / yrInsurance growth
0.39%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
43,051People within 30 min
5,453,831People within 2 hr
56,132Radius comparison (15 mi)
56.8People / sq mi
0%Federal land
52.8%Land at 15% slope or less
3.3%Septic soil without severe limits
2,783 acWorkable land screen
58.4%Wooded land
59.5 tonsBiomass / forest ac
55.2°FAvg temp

Scout Trimble County

Camp here before you commitBook a few nights nearby on Hipcamp →Already own land here?Earn money hosting campers — get $100 when you become a Hipcamp host →

Some links are affiliate or referral links — we may earn a commission, at no cost to you.

Property hunt

Find land. Bring the promising ones back.

Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.

View your full hunt →
ZillowLand & lotsRealtor.comLand listingsLandSearchRural & vacant land

Each button opens a current land search for Trimble County. Listing sites control their own results and filters.

Analyze a property
Add setup-cost allowances

Use rough quotes or placeholders. Blank fields count as $0.

Working estimate

—land + entered setup costs
Asking $ / acre
—
Setup allowance
—
All-in $ / acre
—

A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.

Before an offer

Parcel due diligence

0/8 checked

Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.

Answers from the rulebook for Trimble County

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

Trimble County rules

  • Building permitRequired

    Residential and commercial construction subject to the Trimble County building inspection program.

    • Qualifying farmstead construction may be exempt under the cited statutory criteria.
    • Construction started without a permit is subject to doubled residential and commercial fees.

    single-family permit fee: 0.12 USD per sq. ft. (or $50.00 minimum) · minimum permit fee: 50 USD

    “ALL RESIDENTIAL FEES AND COMMERCIAL FEES SHALL BE DOUBLED FOR ANY CONSTRUCTION STARTED WITHOUT A BUILDING PERMIT.”
  • Owner-builder exemptionConditional

    Farm owners seeking the Kentucky farmstead building exemption in unincorporated Trimble County.

    • The tract must be registered as agricultural or horticultural land in the Trimble County PVA Office.
    • The building must be on one lot of at least 10 acres.
    • The land and building must be outside municipal corporate limits.
    • The structure must be a dwelling or incidental farm building and not a disqualifying commercial or public building.
    • The exemption does not eliminate zoning, setback, floodplain, mobile-home, or other applicable requirements.

    minimum tract size: >= 10 acres

    “This exemption allows the farm owner to construct their home without obtaining a building permit.”
    One more reviewed finding on this topic
    • Conditional — A farm owner constructing a dwelling or qualifying farm-incidental building on an unincorporated Trimble County parcel.
      “This exemption allows the farm owner to construct their home without obtaining a building permit.”
  • InspectionsRequired

    New homes and other listed residential, commercial, accessory, deck, pool, retaining-wall, modular-building, and used-mobile-home work covered by the county inspection schedule.

    • Inspection timing varies by project type.
    • The farmstead exemption states that construction without a building permit is not required to have county construction inspections.
    “REQUIRED BUILDING INSPECTIONS New Single-Family Home • Footer (Before Concrete Poured) • Rough Framing (After All Mechanicals Are Inspected, Before Insulation) • Insulation Inspection (Before Drywall) • Final Building (After All Mechanicals Are Inspected, Before Moving in Furniture)”
  • Certificate of occupancyRequired

    Structures permitted by the Trimble County Building Official and Office of Building Inspections.

    • The certificate must be issued before occupation.
    • Occupation without the certificate is described as a violation of state statute.
    • No certificate will be granted until permit-related fees, including electrical or building reinspection fees, are paid in full.
    “THE STRUCTURE WILL NOT BE OCCUPIED UNTILA CERTIFICATE OF OCCUPANCY IS GRANTED.”
    One more reviewed finding on this topic
    • Limited — Certificate of occupancy issuance by the Trimble County office for permitted construction.
      “Many Financial Institutions and Insurance Policies may require a Certificate of Occupancy now or to future owners and this office cannot issue a Certificate of Occupancy without a permit.”
  • County-wide zoningPresent (with conditions)

    Planning and zoning regulation in Trimble County, including development proposals subject to locally adopted plans and regulations.

    • Applications, permits, district rules, and other locally adopted regulations may apply.
    • Municipal rules may apply within incorporated municipalities.
    “The Trimble County Planning and Zoning Commission is created by local government to guide the county’s physical development in accordance with our Comprehensive Plan.”
  • Local zoningPresent (with conditions)

    County aggregate of local planning and zoning regulation; this does not assert that the county administers every municipal ordinance.

    • The official county page identifies a county Planning and Zoning Commission and locally adopted plans and regulations.
    • Incorporated municipalities may administer separate local rules.
    “Planning & Zoning reviews development proposals for compliance and appropriateness with our locally adopted plans and regulations to provide balanced growth in the county.”
    One more reviewed finding on this topic
    • Present (with conditions) — County-level zoning regulation in Trimble County, including development proposals reviewed by the county Planning & Zoning Commission.
      “The Trimble County Planning and Zoning Commission is created by local government to guide the county’s physical development in accordance with our Comprehensive Plan.”
  • Zoning districtsPublished (with conditions)

    Trimble County zoning districts and zoning-map materials.

    • The official Planning & Zoning page links the Trimble County Zoning Ordinance, Zoning Permit Application, Zoning Map Amendment Application, and Planning and Zoning Map.
    • District-specific dimensional and use rules were not separately extracted here.
    “Zoning Ordinance Fee Schedule [...] Zoning Permit Application [...] Trimble County Zoning Ordinance [...] Planning and Zoning Map”
  • SetbacksSpecified

    Building and accessory-structure setbacks identified in Trimble County forms.

    • Minimum setbacks are required unless a variance has been granted.
    • Accessory structures must be 8 feet from all lot lines and all other structures on the parcel.
    • The agricultural-use exemption does not waive setback lines required for protection of existing and proposed streets and highways.

    accessory-structure setback: 8 feet (from all lot lines and all other structures on parcel)

    “Accessory Structures Must Be 8 feet from all lot lines and all other structures on parcel”
  • Septic inspectionRequired

    Existing septic systems associated with a sale, building addition, or post-disaster rebuild, where the local building office requires inspection before permit issuance.

    • The Health Department inspection is tied to sale, building addition, or rebuilding after a natural disaster.
    • Local building code offices require inspection before issuance of a building or remodeling permit.
    “Local building code offices require the Health Department to inspect an existing septic system prior to issuance of a building or remodeling permit.”
  • Mandatory utility hookupConditional

    Residential building applications depending on whether the property uses on-site sewage or a sewer district.

    • An on-site sewage system requires a Health Department certificate of approval.
    • If the property is not served by on-site sewage, a Sewer District certificate must be attached.
    “If yes, certificate of approval from the Health Department must be attached. Ifnot, a certificate from the Sewer District must be attached.”
  • Agricultural exemptionAvailable (with conditions)

    Land actually used for qualifying agricultural purposes in Trimble County.

    • The exemption applies only while the tract is actually used for agricultural purposes.
    • It is limited to zoning regulations under KRS Chapter 100.
    • Setback lines for streets and highways, floodplain regulations, and mobile-home/manufactured-home and dwelling regulations continue to apply.
    • The exemption does not waive Kentucky Building Code, permit, inspection, or certificate-of-occupancy requirements.

    minimum contiguous agricultural tract: >= 5 acres (for listed crop, livestock, and horticultural uses; other statutory agricultural uses may qualify regardless of tract size)

    “This form documents a landowner's claim that a specific tract is "land which is used for agricultural purposes" and is therefore exempt from local zoning regulations under KRS 100.203(4).”
  • Subdividing landRegulated (with conditions)

    Subdivision and land-development proposals in Trimble County.

    • The county planning page links official Trimble County Subdivision Regulations.
    • Development proposals are reviewed for compliance with locally adopted plans and regulations.
    “Planning & Zoning reviews development proposals for compliance and appropriateness with our locally adopted plans and regulations to provide balanced growth in the county.”
  • Building in a floodplainLimited

    Development on agricultural land and other property in Trimble County subject to floodplain rules.

    • The agricultural zoning exemption does not extend to floodplain regulations governing buildings and structures.
    • The available source does not state the full floodplain permit process or numeric standards.
    “the exemption does NOT extend to the following, which continue to apply to agricultural land: (a) Setback lines required for the protection of existing and proposed streets and highways; (b) Flood plain regulations governing buildings and structures; and (c) Regulation of mobile homes / manufactured homes and dwellings as permitted by KRS 100.203(4).”
  • Short-term rentalsAllowed (with conditions)

    Owner-occupied short-term rental dwelling units in Trimble County zoning districts where Residential Uses are a Permitted Use, including legal nonconforming residential uses.

    • A Short-Term Rental Property permit issued by Planning & Zoning is required before operation or advertising.
    • The owner-occupied unit must comply with the ordinance's special standards.
    • The application must be submitted in person at the Planning and Zoning Office.
    • The application requires a floor plan showing bedrooms and smoke-alarm locations.
    • The applicant must certify that operation does not violate applicable homeowners association, condominium, covenant, subdivision, code, restriction, or other governing agreements.
    • A responsible party must reside or be located within 25 miles and answer calls 24 hours a day, seven days a week during each rental period.
    • Required insurance coverage must be maintained; the county may revoke the permit if coverage lapses.
    • The initial application fee is $150 according to the application checklist dated April 17, 2025; the ordinance summary states an initial registration fee of $200 and an annual registration fee of $100, so the applicable current fee should be confirmed with Planning & Zoning.
    • The permit expires December 31 of each calendar year and must be renewed annually.
    • The maximum guest occupancy is twice the number of sleeping rooms plus four; simultaneous rental to more than one party is not allowed; the maximum guest stay is 30 consecutive days.
    • Outdoor signage identifying the STRP is prohibited, and incidental camping is not authorized.
    • The STRP must comply with applicable federal, state, and local laws concerning nondiscrimination, zoning, building, safety, property maintenance, health and sanitation, fire, electrical, plumbing, mechanical, and other requirements.

    responsible party distance: <= 25 miles (Responsible party must reside or be located within this distance.) · maximum guest stay: 30 consecutive days · initial application fee: 150 USD (Application checklist dated 4/17/2025; ordinance summary separately states $200 initial registration fee.) · annual renewal fee: 100 USD

    “In zoning districts in which Residential Uses are a Permitted Use, including legal nonconforming residential uses, a short-term rental of the dwelling unit that is the primary residence of the property owner (owner occupied) is permitted by the Planning and Zoning Administrator with special standards set forth in this section.”
    9 more reviewed findings on this topic
    • Limited — Non-owner-occupied short-term rental dwelling units in Trimble County zoning districts where Residential Uses are a Permitted Use, including legal nonconforming residential uses.
      “In zoning districts in which Residential Uses are a Permitted Use, including legal nonconforming residential uses, a short-term rental property (STRP) of the dwelling unit that is not the primary residence of the property owner (non-owner occupied) is required to obtain a Conditional Use Permit ("CUP") by the appropriate Board of Adjustments. If granted the CUP the owner must also comply with the special standards set forth in this section.”
    • Prohibited — Mobile homes as defined by the Trimble County Short-Term Rental Property Ordinance.
      “Owners of mobile homes as defined under this ordinance, whether owner occupied or non-owner occupied shall not be permitted to offer the mobile home, or any portion thereof, for short-term rental.”
    • Limited — Recreational vehicles located in a permitted recreational vehicle park in Trimble County.
      “In zoning districts in which recreational vehicles as defined under this ordinance, and are located in a permitted recreational vehicle park, whether occupied or non-occupied, the owner is required to obtain a Conditional Use Permit (CUP") by the appropriate Board of Adjustments in order to use the recreational vehicle as a STRP. If granted the CUP the owner must also comply with the special standards set forth in this section.”
    • Limited — Short-term rental properties in Trimble County.
      “No person or entity shall operate a STRP or advertise a residential property for use as a STRP without the owner of the property first having obtained a STRP permit issued by Planning & Zoning in accordance with the provisions of this section.”
    • Limited — Short-term rental properties in Trimble County zoning districts where residential use is permitted, including certain owner-occupied, non-owner-occupied, multifamily, and recreational-vehicle-park situations.
      “No person or entity shall operate a STRP or advertise a residential property for use as a STRP without the owner of the property first having obtained a STRP permit issued by Planning & Zoning in accordance with the provisions of this section.”
    • Limited — Owner-occupied short-term rental properties in Trimble County zoning districts where residential uses are permitted, including legal nonconforming residential uses.
      “a short-term rental of the dwelling unit that is the primary residence of the property owner (owner occupied) is permitted”
    • Limited — Non-owner-occupied short-term rental properties in Trimble County zoning districts where residential uses are permitted, including legal nonconforming residential uses.
      “is required to obtain a Conditional Use Permit ("CUP") by the appropriate Board of Adjustments.”
    • Prohibited — Mobile homes as defined by the Trimble County Short-Term Rental Property Ordinance.
      “Owners of mobile homes as defined under this ordinance, whether owner occupied or non-owner occupied shall not be permitted”
    • Limited — Recreational vehicles located in a permitted recreational vehicle park in Trimble County zoning districts where recreational vehicles are permitted.
      “are located in a permitted recreational vehicle park, whether occupied or non-occupied, the owner is required to obtain a Conditional Use Permit”
  • Permit feesPublished (with conditions)

    Trimble County residential and commercial building permits and inspections.

    • Single-family, manufactured/modular, additions, basements, renovations, garages, decks, and accessory buildings are $0.12 per square foot or $50 minimum.
    • Multifamily is $0.18 per square foot or $50 minimum.
    • Commercial county or state inspection is $0.12 per square foot or $100 minimum.
    • New construction plan review is $100.
    • Fees double for construction started without a building permit.
    • Re-inspection fee is $50.

    single-family permit fee: 0.12 USD per sq. ft. ($50 minimum) · multifamily permit fee: 0.18 USD per sq. ft. ($50 minimum) · re-inspection fee: 50 USD

    “Single Family House* $0.12 per sq. ft. or $50.00 minimum”
    One more reviewed finding on this topic
  • Permit processPublished (with conditions)

    Trimble County planning, zoning, building-permit, farmstead-exemption, temporary-use, camper, conditional-use, variance, and short-term-rental processes.

    • The official Planning & Zoning page publishes application links and identifies the county Planning & Zoning office and Building Division contacts.
    • Specific project requirements vary by permit type and applicable zoning or building rules.
    “Applications and Forms [...] Zoning Permit Application [...] Residential Building Permit Application [...] Farmstead Exemption Form for Building [...] Camper Temporary Use Permit Application”

Kentucky rules that apply here

  • Building code adoptedAdopted (with conditions)

    Buildings constructed statewide in Kentucky, including residential and nonresidential construction subject to the Kentucky Building Code and Kentucky Residential Code.

    • The 2015 International Building Code is the mandatory state building code for buildings constructed in Kentucky, subject to Kentucky amendments in the 2018 Kentucky Building Code.
    • One-family dwellings, two-family dwellings, and townhouses are governed by 815 KAR 7:125 and the 2015 International Residential Code with Kentucky amendments in the 2018 Kentucky Residential Code.
    • Permits, inspections, and certificates of occupancy are not required for a single-family dwelling unless required by local ordinance.
    • Residential occupancies that are not single-family dwellings, two-family dwellings, or townhouses must comply with the 2015 International Building Code and the 2018 Kentucky Building Code.
    • Manufactured homes are governed by KRS 227.550 through 227.665.

    base building code: 2015 International Building Code (Kentucky amendments in the 2018 Kentucky Building Code supersede conflicting provisions) · residential code: 2015 International Residential Code; 2018 Kentucky Residential Code amendments (Applies to single-family dwellings, two-family dwellings, and townhouses under 815 KAR 7:125) · mandatory effective date: 2019-01-01

    “Building Code. The 2015 International Building shall be the mandatory state building code for all buildings constructed in Kentucky except that: (1) The Kentucky amendments in the 2018 Kentucky Building Code shall supersede any conflicting provision in the 2015 International Building Code; (2) One (1) family dwellings, two (2) family dwellings, and townhouses shall be governed by 815 KAR 7:125; and (3) Manufactured homes shall be governed by KRS 227.550 through 227.665.”
    2 more reviewed findings on this topic
    • Adopted — Construction of single-family dwellings, two-family dwellings, and townhouses in Kentucky, including Trimble County.
      “the 2015 International Residential Code for One (1) and Two (2) Family Dwellings (IRC) shall be the mandatory state residential building code”
    • Adopted (with conditions) — Kentucky construction subject to the Kentucky Building Code and Kentucky Residential Code, including Trimble County projects within the applicable enforcement jurisdiction.
      “The Department of Housing, Buildings and Construction adopted the 2018 Kentucky Building Code, Second Edition and the 2018 Kentucky Residential Code, Second Edition on August 3, 2019.”
  • Accessory dwellingsLimited

    Accessory dwelling units on lots containing a single-family home in a county containing a consolidated local government, when a new lease is initiated after June 27, 2025 and the lot is in a traditional single-family home zone.

    • The owner may not lease or allow the accessory dwelling unit to be occupied unless the owner primarily resides in the single-family home, multifamily housing unit, or accessory dwelling unit on the lot.
    • The restriction applies only in a county containing a consolidated local government.
    • A traditional single-family home zone is a zone that, as of January 1, 2025, did not include multifamily homes as a permitted use.
    • The restriction does not apply to a lot containing only one single-family home and no accessory dwelling unit.
    • The statutory effective date is June 27, 2025.

    new lease applicability date: > 2025-06-27 (The statute applies to new leases initiated after June 27, 2025.)

    “In a county containing a consolidated local government, for new leases initiated after June 27, 2025, a property owner shall not lease or allow to be occupied any single-family home, multifamily housing unit, or accessory dwelling unit located on a lot that contains a single-family home and that is located in a traditional single-family home zone, unless the owner primarily resides in the single-family home or multifamily housing unit or an accessory dwelling unit on the lot.”
  • Who permits septicMixed

    Kentucky's statewide onsite sewage disposal program and its administration through local health departments.

    • The state Cabinet for Health and Family Services establishes the statewide program and regulatory framework.
    • Local health departments administer site evaluations, inspections, and homeowner permits within their jurisdictions.
    “The Onsite Sewage Disposal Systems Program is administered through local health departments”
  • Septic permitRequired

    Construction, installation, or alteration of an on-site sewage disposal system subject to Kentucky Cabinet regulation in Trimble County.

    • The permit must be obtained from the local health department before construction, installation, or alteration.
    • Permits are generally issued only to certified installers.
    • A homeowner may receive a permit if the stated homeowner conditions are met, including personal performance of the work subject to the excavation/backfilling exception.
    • A homeowner may not receive more than one homeowner permit in any five-year period, except for necessary repair or alteration of the originally permitted system.
    • The regulation specifies a $50 on-site sewage disposal permit fee plus any fee established by the local board of health.
    • Cluster-system plan review requires submission to the Environmental Management Branch and a $600 permit fee payable to the Kentucky State Treasurer.

    on-site sewage disposal permit fee: 50 USD (plus the required fee established by the local board of health) · homeowner permit frequency: per 5 years (except for necessary repair or alteration of the originally permitted system) · cluster system plan review permit fee: 600 USD (payable by check or money order to the Kentucky State Treasurer)

    “without having first obtained an on-site sewage disposal permit from the local health department.”
    One more reviewed finding on this topic
    • Required — Construction, installation, or alteration of an onsite sewage disposal system subject to Kentucky Cabinet regulation.
      “a permit to construct, install, or alter an on-site sewage disposal system shall be obtained prior to construction of any portion of that system.”
  • Off-grid sanitationAllowed (with conditions)

    Use of an approved private onsite sewage disposal system for a building where a public sewer is unavailable.

    • The private sewage disposal system must be approved.
    • Construction, installation, alteration, or repair requires the applicable onsite sewage disposal permit and inspection requirements.
    • This finding addresses private onsite sewage disposal, not unregulated composting toilets, straight pipes, cesspools, or other sanitation methods not covered by the cited rule.
    “If a sewer is not available, the house drain from a building shall connect with an approved private sewage disposal system.”
  • Well permitLimited

    Construction, alteration, repair, or abandonment of water supply wells in Kentucky.

    • The person performing the work must first obtain a water well driller or water well driller assistant certificate from the Cabinet.
    • The certificate authorizes only the drilling methods stated on the certificate.
    • The cited sources establish driller certification rather than a separate owner-applied construction permit for ordinary water supply wells.

    minimum examination score: >= 70 percent (applicable examination)

    “A person shall not construct, alter, repair, or abandon a water well without first obtaining a water well driller or water well driller assistant certificate”
  • Driveway accessRequired

    New or additional private farm or single-family dwelling driveway approaches on Kentucky Department of Highways rights-of-way.

    • The owner or occupant must make formal written application to the District Engineer of the Department of Highways.
    • The applicant must furnish required drainage pipe, tile, or other drainage structure at the applicant's own expense.
    • The Department may participate up to $300 for specified construction work.
    • No indemnity bond or other security is required unless estimated construction cost within the right-of-way exceeds $300.
    • The District Engineer may approve or disapprove the application.

    department participation maximum: <= 300 USD (specified drainage, grading, and surfacing work within right-of-way limits)

    “The owner or occupant of property, who desires to construct new or additional private farm or single family dwelling driveway approaches, shall make formal application in writing, to the District Engineer of the Department of Highways.”
    2 more reviewed findings on this topic
    • Limited — Access to a state highway or work activity in state highway right-of-way, including a driveway or entrance in Trimble County.
      “wants access to a road on the state highway system [...] must obtain a permit from the Kentucky Transportation Cabinet.”
    • Required — New, additional, relocated, or modified driveway entrance approaches serving commercial property or property used for a purpose other than farming or a single-family dwelling.
      “The owner or occupant of property, used for commercial or any purpose other than farming or single family dwelling, who desires to construct new or additional driveway entrance approaches, to relocate, or make other changes in existing driveway entrance approaches thereto, shall make application for a permit to the District Engineer of the Department of Highways upon standard forms furnished by the Transportation Cabinet.”
  • Campground & park staysTemporary only (with conditions)

    Sleeping temporarily in a recreational vehicle or other vehicle in a vehicle-based location covered by KRS 511.110.

    • The vehicle must be parked lawfully on a public road, street, or parking lot.
    • Sleeping and parking at the location must occur for less than twelve (12) hours.
    • This provision does not establish permission for long-term or permanent RV occupancy on private land.
    • KRS 511.110 separately prohibits camping in specified areas when the area has not been designated for sleeping or camping or the person lacks authorization.

    maximum sleeping and parking period: < 12 hours

    “Nothing in this section shall prevent a person from sleeping temporarily in his or her vehicle parked lawfully on a public road, street, or parking lot, where the sleeping and parking of the vehicle at the location occur for a period of less than twelve (12) hours.”
  • county zoning authorityGeneral

    Kentucky counties may adopt permanent land-use regulations, including zoning, through the applicable planning-unit process; this authority reaches county jurisdiction, including unincorporated areas, subject to the statutory planning prerequisites.

    • The planning commission and legislative bodies must have adopted the required comprehensive-plan elements before permanent zoning may be enacted.
    • The authority is exercised by legislative bodies and fiscal courts within the planning unit.
    • The quoted statute also authorizes zoning and land-use regulations for the listed public-health, safety, welfare, development, density, parking, fire and police protection, flood, transportation, public-facility, school, historic-district, agricultural-land, natural-resource, and other specially protected-area purposes.
    “When all required elements of the comprehensive plan have been adopted in accordance with the provisions of this chapter, then the legislative bodies and fiscal courts within the planning unit may enact permanent land use regulations, including zoning and other kinds of growth management regulations”
  • county building authorityGeneral

    Kentucky fiscal courts may adopt and enforce construction regulations and may require building permits for construction in the county, including residential construction in unincorporated areas.

    • The construction regulations must be adopted by county order or resolution.
    • The regulations operate pursuant to KRS 198B.060 and the Uniform State Building Code framework.
    • A county building inspector may administer the regulations.
    • No person may build, erect, construct, reconstruct, remodel, relocate, alter, or repair a building within the county without first obtaining a building permit from the building inspector when the county permit system applies.
    • Permit fees must be reasonable and may not exceed the cost of the service provided.
    • A person aggrieved by the building inspector's ruling, order, or decision may appeal under KRS 198B.070.

    permit fee ceiling: <= cost of the service provided

    “The fiscal court of any county shall have authority, by order or resolution, to adopt, and to enforce, regulations governing construction as defined by KRS 198B.010 pursuant to the provisions of KRS 198B.060.”

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 Trimble County.
  • Minimum lot size — Minimum lot size requirements in Trimble County.
  • Lot coverage — Lot coverage requirements in Trimble County.
  • Building height — Building-height requirements in Trimble County.
  • Living in an RV — Long-term or permanent recreational-vehicle occupancy on private land in Trimble County.
3 more unanswered
  • Camping on your land
  • Tiny homes
  • Manufactured homes

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 Trimble County, Kentucky

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

Trimble County scores 58/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and mixed durability signals. Watch-outs: a weaker property-autonomy legal backdrop and about 43,051 people within a 30-minute drive.

Do you need a building permit in Trimble County, Kentucky?

Trimble County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by North Central District Health Department. 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 Trimble County, Kentucky?

Land in Trimble County runs about $4,600 per acre, based on the latest county data.

What is the water situation in Trimble County?

Trimble County gets about 49.6" of rain a year, with severe drought in roughly 2.5% of years.

How remote is Trimble County?

A representative private-land location has about 43,051 people within a 30-minute drive and 5,453,831 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 Trimble County means bringing your own water and power. The kit we’d start with:

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

How Trimble compares in Kentucky

Compare side-by-side →See all 120 Kentucky counties ranked →