Bolthole Index

Warren County, Kentucky

Building permits, zoning and septic rules in Warren County, Kentucky

54Index Score / 100
#100 of 120 in Kentucky

Warren County, Kentucky requires a building permit for new construction outside Bowling Green and Oakland, where the county Division for Building Services issues building permits; inside those two cities, ask the city for building permits12. Zoning is a joint ordinance that applies throughout the county, cities included, and the City-County Planning Commission publishes it3. Septic permits and inspections for every address come from the Barren River District Health Department, not Building Services45.

At a glance

Building permit
Required for all new construction outside Bowling Green and Oakland1
Inspections and occupancy
County-administered work is inspected; occupancy approval follows all required inspections67
Zoning
Countywide joint ordinance, with district materials published by the Planning Commission89
Septic permits
Barren River District Health Department, not county Building Services10411
Building permit fee
$0.15 per square foot, with a $45 minimum and listed flat-fee exceptions12
Qualified manufactured homes
At least 900 square feet and permitted in AG, RR, R-E and RS-1 zones when qualified1314
Owner plumbing work
A homeowner permit is available under conditions; it does not waive the building permit15
Private wells
No owner permit application or fee; a Kentucky-certified driller must do and document the work16

Who to call

Building permits

Warren County Division for Building Services

Building, electrical, mobile/manufactured/modular home and swimming pool permits for Warren County, excluding Bowling Green and Oakland

270.843.5360

1141 State Street, Bowling Green, KY 42101

Planning & zoning

City-County Planning Commission of Warren County

Zoning administration and subdivision regulation for Warren County and the cities of Bowling Green, Plum Springs, Oakland, Smiths Grove and Woodburn

270.842.1953

922 State St., Suite 200, Bowling Green, KY 42101

Septic permits

Barren River District Health Department, Onsite Sewage Program

Septic (onsite sewage) permits, inspections and site evaluations for Warren County

(270) 781-8039

1109 State Street, Bowling Green, KY 42101

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

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

Warren County requires a permit for new construction outside Bowling Green and Oakland, and the county's Division for Building Services enforces the Kentucky building and residential codes there117. Kentucky has adopted statewide building and residential codes, but its residential code leaves single-family permits, inspections and occupancy certificates to local ordinance; Warren County requires the permit and county-administered inspections18196. Required inspections include footings, foundation or underfloor work, framing, energy efficiency and a final inspection; the permit holder must notify the inspector and allow at least two business days6. Warren County withholds the certificate of occupancy until all required inspections are approved7. Starting construction before receiving the permit carries a fine of at least $5001.

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

The Warren County Division for Building Services issues building, electrical, mobile/manufactured/modular home and swimming-pool permits outside Bowling Green and Oakland20. Reach the office at 270.843.5360 or visit 1141 State Street, Bowling Green, KY 4210120. A complete county application includes building plans and a professionally drawn plot plan, although a qualifying accessory structure under 750 square feet on more than 5 acres may use a site plan instead21. Review begins after all required documents arrive and normally runs five business days; the permit is issued after the fee is paid, though a violation or concern can extend review or lead to denial21. The published building-permit charge is $0.15 per square foot with a $45 minimum, while listed project types use a flat $45 charge; the schedule is subject to change22.

Does Warren County have zoning?

Warren County has a joint zoning ordinance adopted by the Fiscal Court and Bowling Green, Oakland, Plum Springs, Smiths Grove and Woodburn, and the regulations apply throughout the county8. The City-County Planning Commission publishes the ordinance's district and use materials9. Setbacks depend on the district and use; for example, RV-park sleeping spaces must sit at least 50 feet from a right-of-way and 25 feet from adjoining property, unless a greater setback applies23. The Planning Commission regulates subdivisions in Warren County and the named cities24. A subdivision in a Kentucky planning jurisdiction needs commission approval before its plat may be recorded; a qualifying agricultural division of at least 5 acres without a new street falls outside the statutory subdivision definition2526. Minimum lot sizes depend on the district and on sewer service: 2 acres in the RR district, with or without public sewer, and 12,000 square feet in RS-1A on public sewer27. Existing RS-district lots more than 2,000 feet from public sewer may use septic only with at least 20,000 square feet outside drainage easements and floodplain and Barren River District Health Department certification that a conventional system is acceptable27. Ask the Planning Commission at 270.842.1953 for the parcel's district, setbacks, height and allowed uses before buying28.

How do septic permits work in Warren County?

Warren County onsite sewage administration runs through the Barren River District Health Department, under Kentucky's statewide standards, rather than county Building Services4. Reach the program at (270) 781-8039 or 1109 State Street, Bowling Green, KY 4210111. The department conducts parcel soil evaluations and reviews installation drawings before issuing permits11. After the site evaluation, a permit is required before any part of an onsite system is constructed, installed or altered; the application includes a detailed drawing, specifications and the permit fee29. The department inspects Warren County systems after installation for compliance5. About 37.5% of Warren County soils are rated without severe limitations for a conventional drain field, so a parcel-specific evaluation is an important early feasibility check30.

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

In a permitted Warren County RV park, spaces are rented by the day and an occupant may remain in the same park no more than 29 days31. That park rule does not answer long-term RV living on an ordinary private parcel, which we could not confirm; ask the City-County Planning Commission before relying on an RV as a residence28. Tiny-home occupancy also remains unconfirmed, so take the proposed structure to Planning and Building Services before purchase2820. Qualified manufactured homes are allowed as residences in AG, RR, R-E and RS-1 zones when they meet the county's standards13. A qualified manufactured home must provide at least 900 square feet of living area and meet the other age, foundation, utility and dimensional conditions14. The rule does not settle every older or nonqualifying unit28.

How do you build a home in Warren County, step by step?

  1. Ask the City-County Planning Commission to identify the parcel's zoning district, allowed use and dimensional standards928.
  2. If public sewer is unavailable, obtain the Barren River District Health Department's soil evaluation, design review and septic permit before any system construction begins1129.
  3. Submit building plans and the required plot plan to Warren County Building Services; a complete application enters a five-business-day review before fee payment and issuance21.
  4. For a new county-road entrance, complete the right-of-way encroachment application; a state-highway driveway follows the state application process3233.
  5. Obtain state and local permits if the site lies in an identified floodplain34.
  6. Request each required county building inspection with at least two business days' allowance, and have the septic system inspected after installation65.
  7. Do not occupy the county-administered building until all required inspections are approved and the certificate of occupancy is issued7.

What should you check before buying land in Warren County?

Start with access, wastewater, water and buildability. A new entrance onto a Warren County road requires a right-of-way encroachment permit application, while a farm or single-family driveway on a state highway goes to the Kentucky Department of Highways District Engineer3233. Warren County property owners do not file a permit application or pay a permit fee to construct or abandon a private well, but a Kentucky-certified water-well driller must perform and document construction, modification or abandonment16. About 72% of the county has slopes of 15% or less, while about 37.5% of soils are rated without severe limitations for a conventional drain field; neither countywide figure replaces a survey or septic soil evaluation3530. Development in an identified floodplain needs both state and local permits34. Typical home value is about $294,104, farmland value is about $5,899 per acre and the effective property-tax rate is about 0.6%363738.

Watch-outs

  • Kentucky offers a homeowner plumbing permit for an owner doing the work personally on a home for personal residential use, but this is not a blanket exemption from Warren County building permits or contractor rules15.
  • Kentucky requires both a state and a local floodplain permit for development in a mapped flood zone, but we could not confirm which Warren County office serves as the local floodplain coordinator; ask Building Services before building near a creek or floodplain3420.

Sources

  1. Building Services - Warren County Kentucky, quoted and re-checked
  2. Building Services - Warren County Kentucky, quoted and re-checked
  3. Regulations/Documents – City County Planning Commission, quoted and re-checked
  4. Onsite Sewage Disposal Systems Program, quoted and re-checked
  5. Onsite Sewage, quoted and re-checked
  6. Building Services - Warren County Kentucky, quoted and re-checked
  7. Building Services - Warren County Kentucky, quoted and re-checked
  8. Regulations/Documents – City County Planning Commission, quoted and re-checked
  9. Regulations/Documents – City County Planning Commission, quoted and re-checked
  10. Barren River District Health Department - Onsite Sewage (2026 county census)
  11. Barren River District Health Department, Onsite Sewage Program (barrenriverhealth.org)
  12. Building Services - Warren County Kentucky, quoted and re-checked
  13. 2026 Zoning Ordinance Amendments, quoted and re-checked
  14. Building Services - Warren County Kentucky, quoted and re-checked
  15. Department of Housing, Buildings and Construction Frequently Asked Questions, quoted and re-checked
  16. Water Well Information, quoted and re-checked
  17. Building Services - Warren County Kentucky, quoted and re-checked
  18. Department of Housing, Buildings and Construction – Building Codes, quoted and re-checked
  19. 815 KAR 7:125, Kentucky Residential Code (Kentucky statewide rule), quoted and re-checked
  20. Warren County Division for Building Services (warrencountyky.gov)
  21. Building Services - Warren County Kentucky, quoted and re-checked
  22. Building Services - Warren County Kentucky, quoted and re-checked
  23. Article 5 – Use Regulations, quoted and re-checked
  24. Subdivision Regulations of Warren County, quoted and re-checked
  25. KRS 100.277 — Commission approval required for subdivisions (Kentucky statewide rule), quoted and re-checked
  26. KRS 100.111 — Definitions for chapter (Kentucky statewide rule), quoted and re-checked
  27. Warren County/Joint Zoning Ordinance, Article 4, quoted and re-checked
  28. City-County Planning Commission of Warren County (warrenpc.org)
  29. apps.legislature.ky.gov, quoted and re-checked
  30. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  31. Article 5 – Use Regulations, quoted and re-checked
  32. Building Services - Warren County Kentucky, quoted and re-checked
  33. 603 KAR 1:020 Driveway approaches, entrances; construction and maintenance (Kentucky statewide rule), quoted and re-checked
  34. Find Your Flood Zone (Kentucky statewide rule), quoted and re-checked
  35. Share of land at 15% slope or less: Bolthole Index county data
  36. Typical home value (Zillow): Bolthole Index county data
  37. Farmland value per acre (USDA census): Bolthole Index county data
  38. Effective property tax rate: Bolthole Index county data

Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Like 4 of the 5 neighbors with published rules, Warren County has countywide zoning.

RuleWarren CountyAllen CountySimpson CountyEdmonson CountyButler CountyBarren CountyLogan County
Building permitRequiredRequiredRequiredRequiredNot requiredRequiredLimited
County zoningYesYesYesYesNoYesNot published
Septic permitsBarren River District Health Dept.County Health Dept.Barren River District Health Dept.Barren River District Health Dept.Barren River District Health Dept.Barren River District Health Dept.County Health Dept.

County locator

Warren County in Kentucky

54
County map
Warren County highlighted among the Kentucky counties · colored by Index score

How Warren County scores

Seclusion31100% ev.
Self-Sufficiency73100% ev.
Admin Boringness4190% ev.
Durability63100% ev.
Property Autonomy33100% ev.
Carry Cost78100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$294kTypical home
0.6%Property tax
$5,899Land / acre
51.9"Annual rain
1.8% of yrsSevere drought
10.6 / yr (+9.7)Mid-century 100°F days
14.3 daysMid-century dry spell
2.38" (+9.8%)Mid-century 1-day rain
1.67×Wildfire change factor
100%Forward climate coverage
$1,650Home insurance / yr
-0.4% / yrInsurance growth
0.42%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
126,106People within 30 min
4,570,415People within 2 hr
121,746Radius comparison (15 mi)
262.6People / sq mi
0%Federal land
72%Land at 15% slope or less
37.5%Soils rated "not limited" for septic (strict USDA rating)
121,079 acWorkable land screen
39.3%Wooded land
56 tonsBiomass / forest ac
58.1°FAvg temp

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Cities and towns in Warren County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Not yet researched: Oakland · Plum Springs · Smiths Grove · Woodburn

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 permitRequired

    New construction in Warren County.

    • The county page says all new construction requires a permit.
    • Warren County Building Services excludes Bowling Green and Oakland from its enforcement responsibility.
    • A fine of at least $500 is charged to applicants who begin construction without first receiving a permit.

    fine for beginning construction without permit: >= 500 USD minimum

    “new construction in Warren County requires a permit”
    One more reviewed finding on this topic
  • Building code adoptedPartial

    County-administered enforcement of Kentucky Building/Residential Codes and National Electric Code for buildings and structures in Warren County outside Bowling Green and Oakland.

    • The county source expressly excludes Bowling Green and Oakland from the Warren County Division for Building Services' enforcement territory.
    • The source describes enforcement, not independent county adoption of the Kentucky codes.
    • The state Department of Housing, Buildings and Construction states that KBC enforcement responsibilities are shared between state and local government building departments.
    “The Division for Building Services is responsible for enforcement of the Kentucky Building/Residential Codes and National Electric Code for new construction, alteration, relocation, demolition, and/or change of occupancy for buildings and structures in Warren County (excluding Bowling Green and Oakland).”
  • InspectionsRequired

    Permitted building work in the county building-services jurisdiction.

    • The permit holder or authorized agent must notify the building inspector when work is ready.
    • At least two business days must be allowed for inspections.
    • Final inspection must occur before occupancy.

    inspection notice period: >= 2 business days

    “It is the duty of the building permit holder or their duly authorized agent to notify the building inspector’s official of when work is ready for inspection while allowing at least two business days for inspections to be completed.”
    One more reviewed finding on this topic
    • Required — Permitted building construction administered by Warren County Building Services.
      “It is the duty of the building permit holder or their duly authorized agent to notify the building inspector’s official of when work is ready for inspection while allowing at least two business days for inspections to be completed.”
  • Certificate of occupancyRequired

    Buildings subject to Warren County Building Services occupancy approval.

    • Certificates of occupancy will not be issued until all required inspections are approved.
    • If inspection reveals a use different from the permit, the certificate is held until the fee is adjusted and paid.
    “Certificates of occupancy will not be issued”
    One more reviewed finding on this topic
    • Required — Buildings administered by Warren County Building Services before occupancy.
      “Certificates of occupancy will not be issued until all required inspections are approved.”
  • County-wide zoningPresent (with conditions)

    Joint zoning ordinance adopted by Warren County Fiscal Court with incorporated cities and applying throughout Warren County.

    • The ordinance is jointly adopted with Bowling Green, Oakland, Plum Springs, Smiths Grove, and Woodburn.
    • The source states that the regulations apply to all areas within Warren County.
    “Our local zoning ordinance is unique from other local ordinance in regards that it is a joint ordinance adopted by the Warren County Fiscal Court and the incorporated cities of Bowling Green, Oakland, Plum Springs, Smiths Grove, and Woodburn. These regulations apply to all areas within Warren County.”
    One more reviewed finding on this topic
    • Present — The joint Warren County zoning ordinance applies throughout Warren County, including incorporated cities identified on the planning commission page.
      “Our local zoning ordinance is unique from other local ordinance in regards that it is a joint ordinance adopted by the Warren County Fiscal Court and the incorporated cities of Bowling Green, Oakland, Plum Springs, Smiths Grove, and Woodburn. These regulations apply to all areas within Warren County.”
  • Local zoningPresent (with conditions)

    Zoning regulations across Warren County, including incorporated Bowling Green, Oakland, Plum Springs, Smiths Grove, and Woodburn, through a joint ordinance adopted by the Warren County Fiscal Court and those incorporated cities.

    • The ordinance is jointly adopted by the Warren County Fiscal Court and the incorporated cities of Bowling Green, Oakland, Plum Springs, Smiths Grove, and Woodburn.
    • The source states that the regulations apply to all areas within Warren County.
    • This countywide aggregate claim does not mean Warren County alone administers each incorporated municipality's zoning authority.
    “Our local zoning ordinance is unique from other local ordinance in regards that it is a joint ordinance adopted by the Warren County Fiscal Court and the incorporated cities of Bowling Green, Oakland, Plum Springs, Smiths Grove, and Woodburn. These regulations apply to all areas within Warren County.”
  • Zoning districtsPublished

    Published Warren County Joint Zoning Ordinance district materials, including Article 4 and Article 5.

    • The official planning page provides individual articles and a full ordinance link.
    • The current official page also identifies proposed 2026 amendments; proposed amendments are not treated as adopted here.
    • The official zoning map was not independently resolved.
    “Article 4 [...] Article 5 [...] Full Zoning Ordinance”
    One more reviewed finding on this topic
  • Minimum dwelling sizeSpecified

    Qualified manufactured homes in the Warren County zoning and building-services jurisdiction.

    • The requirement is identified as effective June 25, 2026.
    • The home must be manufactured no more than five years before installation.
    • The home must be affixed to a permanent foundation, connected to appropriate facilities, and installed in compliance with KRS 227.570.
    • The home must have a width of at least 20 feet at its smallest width measurement, or be two stories in height and oriented so its main entrance faces the street.
    • The home must satisfy the county's compatibility standards where applicable.

    minimum total living area: >= 900 square feet · maximum manufacturing age before installation: <= 5 years

    “Has a minimum total living area of nine hundred (900) square feet.”
  • Minimum lot sizeDistrict specific (with conditions)

    Single-family residential development in the RR, R-E, RS-1A, RS-1B, RS-1C, RS-1D, and MHP zoning districts under the Warren County/Joint Zoning Ordinance.

    • The standards are district-specific and vary by public sewer versus septic service.
    • The ordinance states that only one principal residential unit is allowed per platted lot in the R-E, RR, and RS districts.
    • Existing lots of record in RS districts located greater than 2,000 feet from public sanitary sewer may use onsite septic only if they have at least 20,000 square feet outside drainage easements and/or floodplains and the Barren River District Health Department certifies that a conventional septic system is acceptable.
    • The ordinance separately requires at least 5,000 square feet above the 100-year frequency flood level for lots served by public sanitary sewer and at least 20,000 square feet above that flood level for lots served by onsite septic; improvements, including parking areas and septic systems, may not be located within the floodplain.
    • The 2026 amendment page states that the new amendments are now in effect; the cited Article 4 amendment document is the official ordinance text containing the listed standards.

    RR minimum lot area, public sewer: 2 acres · RR minimum lot area, septic system: 2 acres · R-E minimum lot area, public sewer: 43560 sq ft · R-E minimum lot area, septic system: 43560 sq ft · RS-1A minimum lot area, public sewer: 12000 sq ft · RS-1B minimum lot area, public sewer: 10000 sq ft · RS-1C minimum lot area, public sewer: 8000 sq ft · RS-1D minimum lot area, public sewer: 5000 sq ft (See separate downtown RS-1D detached-home standard.) · MHP minimum lot area, public sewer: 217800 sq ft

    “Lot Area (min sf) Public Sewer Septic System 2 acres 2 acres 43,560 43,560 12,000 N/A6 10,000 N/A6 8,000 N/A6 5,0003 N/A6 217,800 N/A”
    2 more reviewed findings on this topic
    • Specified — Single-family detached homes on property zoned RS-1D within the area bounded by the US 31W Bypass/East Riverview Drive, Kentucky Street, and Broadway Avenue/East 12th Avenue.
      “Minimum lot size for each lot shall be 3,750 sf, exclusive of floodplain.”
    • Specified — Twinhome units developed on separately platted and recorded lots in RS-1D, RS-1C, and RS-1B districts.
      “Minimum lot size for each platted lot shall be 2,500 sf in RS-1D and 4,000 sf in RS-1C and 5,000 sf in RS-1B, exclusive of floodplain.”
  • SetbacksDistrict specific (with conditions)

    Setbacks for RV Parks and mobile home parks governed by the Warren County Joint Zoning Ordinance.

    • For RV Parks, the ordinary yard requirements of the applicable zoning district also apply.
    • For RV Parks, sleeping spaces must be at least 50 feet from a right-of-way and 25 feet from adjoining property, or the greater incompatible-use setback where applicable.
    • For mobile home parks, spaces and permitted accessory uses or structures must be at least 50 feet from a public-street boundary and 25 feet from other park property boundaries.
    • Mobile home units must be at least 20 feet from the edge of the abutting internal park street.
    • The reviewed zoning materials are district- and use-specific; they do not establish one countywide setback for every dwelling or structure.

    RV sleeping space setback from right-of-way: >= 50 feet (A greater incompatible-use setback may apply.) · RV sleeping space setback from adjoining property: >= 25 feet (Applicable zoning-district requirements may be greater.) · mobile home park boundary setback adjacent to public street: >= 50 feet · mobile home park boundary setback otherwise: >= 25 feet · mobile home unit setback from internal park street: >= 20 feet

    “There shall be a minimum distance of 20 feet between the housing unit and the edge of the abutting internal park street.”
  • Building heightSpecified

    Building-height standards under the joint zoning ordinance.

    • Requirements vary by zoning district and use.
    • The ordinance materials identify height as a regulated zoning subject.
    “The ordinances specify whether zones can be used for residential, commercial, industrial or mixed-use purposes, and regulates items such as lot size, landscaping, buffering, placement of structures, bulk, density and the height of structures.”
  • Living in an RVTemporary only (with conditions)

    Occupancy of recreational vehicles, travel trailers, equivalent facilities constructed in or on automotive vehicles, or other short-term housing or shelter arrangements in a permitted RV Park within Warren County.

    • The RV Park must be allowed by the Section 5.1 Use Table and comply with state regulations under KRS 219.
    • Minimum park area is 10 acres.
    • The park must have direct access to a minimum 18-foot roadway with at least 50 feet of frontage.
    • No entrance or exit may be through a residential district or require traffic from the park to move through a residential district.
    • Permanent dwellings are prohibited except for one unit for park security or maintenance.
    • Spaces must be rented by the day only, and an occupant may not remain in the same RV Park more than 29 days.
    • The RV Park must comply with all applicable requirements of the Barren River District Health Department.
    • Every application for construction, operation, maintenance, and occupancy must include a plot plan for Planning Commission review.
    • Sleeping occupancy spaces must be at least 50 feet from a right-of-way and 25 feet from adjoining property, subject to any greater incompatible-use setback.

    minimum park area: >= 10 acres · minimum roadway width: >= 18 feet · minimum roadway frontage: >= 50 feet · maximum stay in same RV Park: <= 29 days (Spaces are rented by the day only.)

    “Spaces shall be rented by the day only, and the occupant of such space shall not remain in the same RV Park more than 29 days.”
  • Manufactured homesAllowed (with conditions)

    Qualified manufactured homes as residential units in the AG, RR, R-E, and RS-1 zoning districts covered by Warren County's joint zoning ordinance.

    • The 2026 zoning amendments are stated to be in effect.
    • The home must satisfy the county's qualified-manufactured-home criteria.
    • The county building-services page identifies compatibility standards for new homes in AG lots under 2 acres, R-E, RS-1A, RS-1B, RS-1C, and RS-1D.
    • All new homes must face the street, subject to the stated corner-lot rule and the City of Woodburn exception.
    • All new homes must meet at least three listed compatibility criteria, except that Woodburn requires only two.
    • Other applicable building, utility, sanitary-sewer, septic, subdivision, and municipal requirements may apply.
    • The ordinance is jointly adopted by Warren County Fiscal Court and incorporated cities; this claim aggregates the countywide rule and does not establish identical municipal administration.

    manufactured date before installation: <= 5 years (The home must be manufactured on a date not to exceed five years prior to installation.) · minimum width: >= 20 feet (Alternatively, the home may be two stories in height.) · minimum total living area: >= 900 square feet · minimum compatibility criteria: >= 3 criteria (In the City of Woodburn, new homes are required to meet only two criteria.)

    “The new amendments are now in effect. [...] Added Qualified Manufactured Home as a permitted residential unit type in the AG, RR, R-E, RS-1 zones (pg. 4-4, 4-6 and 4-7).”
    One more reviewed finding on this topic
    • Allowed — Qualified manufactured homes as residential units in the AG, RR, R-E, and RS-1 zoning districts covered by the Warren County joint zoning ordinance.
      “The new amendments are now in effect. [...] Added Qualified Manufactured Home as a permitted residential unit type in the AG, RR, R-E, RS-1 zones (pg. 4-4, 4-6 and 4-7).”
  • Who permits septicLocal (with conditions)

    Onsite sewage regulation and inspection for Warren County through the Barren River District Health Department and the local health department program.

    • Kentucky states that the onsite sewage program is administered through local health departments.
    • The Barren River District Health Department identifies Warren County in its service area and operates an Onsite Sewage Program.
    “administered through local health departments”
  • Septic inspectionRequired

    Onsite sewage systems installed in Warren County.

    • The local health department performs inspections.
    • BRDHD states that systems are inspected after installation for compliance with health regulations.
    “After installation, we inspect systems to ensure compliance with health regulations.”
    One more reviewed finding on this topic
    • Required — Onsite sewage systems in Warren County after installation.
      “After installation, we inspect systems to ensure compliance with health regulations.”
  • Subdividing landRegulated (with conditions)

    Subdivision of land within Warren County and the listed incorporated cities.

    • The City-County Planning Commission is empowered under KRS 100.273.
    • The official page identifies Bowling Green, Plum Springs, Oakland, Smiths Grove, and Woodburn as covered cities.
    “The City-County Planning Commission of Warren County, Kentucky has been empowered to prepare rules and regulations governing the subdivision of land within Warren County and the cities of Bowling Green, Plum Springs, Oakland, Smiths Grove and Woodburn under the authority of Section 100.273 of the Kentucky Revised Statutes.”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Subdivision of land within Warren County and the named incorporated cities.
      “The City-County Planning Commission of Warren County, Kentucky has been empowered to prepare rules and regulations governing the subdivision of land within Warren County and the cities of Bowling Green, Plum Springs, Oakland, Smiths Grove and Woodburn under the authority of Section 100.273 of the Kentucky Revised Statutes.”
  • Driveway accessRequired

    A new entrance onto a Warren County road.

    • A right-of-way encroachment permit application must be completed for a new entrance onto a county road.
    “complete a right-of-way encroachment permit application”
    One more reviewed finding on this topic
    • Limited — New entrances onto county roads.
      “right-of-way encroachment permit application”
  • Permit feesPublished (with conditions)

    Warren County building permits administered by county Building Services.

    • The fee schedule is subject to change.
    • Exceptions include swimming pools, demolition permits, electrical service meter poles, decks, fences, cellular towers, and signs.
    • The listed exceptions are charged a flat $45 fee.
    • A different-use finding during inspection can require fee adjustment before certificate of occupancy.

    building permit fee: per 0.15 USD per square foot (minimum $45 per permit) · exception permit fee: 45 USD (swimming pools, demolition permits, electrical service meter poles, decks, fences, cellular towers, and signs)

    “Per Warren County Fiscal Court Resolution 21-54: Each building permit fee for all classification groups shall be calculated by multiplying that total building area under construction by $0.15 per square foot. Minimum $45 for a permit. Subject to change.”
    One more reviewed finding on this topic
    • Published (with conditions) — Warren County building permits administered by Building Services.
      “Each building permit fee for all classification groups shall be calculated by multiplying that total building area under construction by $0.15 per square foot. Minimum $45 for a permit. *Subject to change.”
  • Permit processPublished (with conditions)

    Warren County building permit applications administered by Building Services.

    • Applicants select the relevant permit application.
    • Applications must include building plans and a professionally drawn plot plan.
    • Accessory-structure site plans may replace plot plans when the structure is under 750 square feet and located on more than 5 acres.
    • New entrances onto county roads require a right-of-way encroachment permit application.
    • More than one acre of disturbance requires a SWPPP if no existing SWPPP is in place or its status is unknown.
    • Contractors must obtain a contractor license and occupational business license.
    • Review begins after all required applications and documentation are submitted and lasts five business days.
    • The permit is issued after the permit fee is paid.

    review period: 5 business days (begins after all required applications and documentation are submitted) · accessory structure threshold: < 750 square feet (must be located on more than 5 acres for a site plan to replace a plot plan)

    “Once all required applications and documentation are submitted to the Division for Building and Electrical services, a review period of five business days will begin. If during the review process a violation or other item of concern is discovered, the appropriate agency(s) will contact you to help resolve the issue. Such issues may result in an extended review period or denial of a permit. After the five day review period, the building permit will be issued once the building permit fee has been paid.”
    One more reviewed finding on this topic
    • Published (with conditions) — Warren County building permit applications handled by county Building Services.
      “Once all required applications and documentation are submitted to the Division for Building and Electrical services, a review period of five business days will begin. If during the review process a violation or other item of concern is discovered, the appropriate agency(s) will contact you to help resolve the issue. Such issues may result in an extended review period or denial of a permit. After the five day review period, the building permit will be issued once the building permit fee has been paid.”

Kentucky rules that apply here

  • Owner-builder exemptionAvailable (with conditions)

    Homeowner-performed HVAC installation, construction, or alteration in the homeowner's legal residence or a home constructed for personal residential use, including Warren County.

    • The permit application must be made before HVAC work begins.
    • The homeowner must file an affidavit stating that the homeowner will abide by the regulation.
    • The homeowner must provide proof of adequate system sizing.
    • The homeowner must provide a complete design plan for related duct and piping.
    • All work must comply with the Kentucky Residential Code and Kentucky Building Code.
    • All work must be personally performed by the owner.
    • Only one homeowner HVAC construction permit may be issued to an individual within a five-year period.

    homeowner HVAC construction permit frequency: 1 permit per individual per 5 years

    “A permit to construct, install, or alter a heating, ventilation, or air conditioning system shall be issued to a homeowner”
    3 more reviewed findings on this topic
    • Conditional — Homeowners seeking a Kentucky homeowner permit for plumbing, sewerage, or drainage work in a home they occupy or are constructing for their own personal residential use, including in Warren County.
      “All the work shall be personally performed by the owner.”
    • Available (with conditions) — Homeowner-performed plumbing, sewerage, or drainage work in a legal residence or a home the homeowner constructs for personal residential use, including Warren County.
      “Permits to construct, install or alter plumbing [...] may be issued to homeowners [...] All the work shall be personally performed by the owner.”
    • Conditional — An individual property owner performing heating, ventilation, and air conditioning work on property the individual owns and occupies.
      “KRS 198B.650 to 198B.689 shall not apply to: [...] (3) An individual owner of real property while practicing heating, ventilation, and air conditioning work on or within property owned and occupied by the individual;”
  • Camping on your landLimited

    Camping or sleeping in the specified public and private pedestrian or vehicle-use areas statewide.

    • The person must knowingly enter or remain in a listed area with intent to sleep or camp.
    • The area must not have been designated for sleeping or camping, or the individual must lack authorization to sleep or camp there.
    • The listed areas include streets, sidewalks, areas under bridges or underpasses, paths, parks, cemeteries, and other areas designated for pedestrians or vehicles, including ingress or egress areas to businesses, homes, or public buildings.
    • The first offense is a violation; a second or subsequent offense, or a first offense where the person refuses to cease, is a Class B misdemeanor.
    • The section does not prohibit customary and temporary use of recreational camping areas, rest areas, or other properties specifically designated for resting or sleeping.
    • Temporary sleeping in a vehicle parked lawfully on a public road, street, or parking lot is not prevented when sleeping and parking occur for less than twelve (12) hours.

    temporary vehicle sleeping period: < 12 hours (The vehicle must be parked lawfully on a public road, street, or parking lot.)

    “A person is guilty of unlawful camping when he or she knowingly enters or remains on a public or private street, sidewalk, area under a bridge or underpass, path, park, cemetery, or other area designated for use by pedestrians or vehicles, including areas used for ingress or egress to businesses, homes, or public buildings, with the intent to sleep or camp in that area, when the area has not been designated for the purpose of sleeping or camping or the individual lacks authorization to sleep or camp in the area.”
    2 more reviewed findings on this topic
    • Allowed (with conditions) — Temporary camping locations for unsheltered homeless individuals designated by local governments under Kentucky law.
      “A local government may designate indoor or outdoor areas with defined boundaries in an area zoned for commercial or industrial use, separate from any area frequently used for public purposes, as a temporary camping location for unsheltered homeless individuals.”
    • Limited — Temporary parking of recreational vehicles on public or private property associated with specified publicly announced events.
      “Nothing in KRS 219.310 to 219.410 shall be construed to apply to the temporary parking of recreational vehicles on public or private property, for not more than thirty (30) days, associated with festivals, fairs, sporting events, yard sales, or other publicly announced events.”
  • 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.”
  • Septic permitRequired

    Construction, installation, or alteration of an onsite sewage disposal system subject to Kentucky Cabinet regulation.

    • A permit must be obtained from the local health department before construction, installation, or alteration.
    • The construction permit follows a site evaluation and requires a detailed drawing, specifications, and required permit fees.
    • The permit is issued only to a certified installer or homeowner and expires one year after issuance unless the Cabinet grants an extension.
    • Local health departments may adopt more specific subdivision-approval requirements if they do not conflict with the state regulation.

    permit validity: 1 year from issuance (unless an extension is granted by the cabinet)

    “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.”
    One more reviewed finding on this topic
    • Required — Construction, installation, or alteration of an onsite sewage disposal system in Warren County.
      “After the site evaluation has been conducted, 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 sanitationProhibited

    Use of seepage pits, cesspools, or dry wells as onsite sewage disposal systems statewide in Kentucky, subject to the Section 13 exception.

    • The prohibition is subject to the exception provided in Section 13 of 902 KAR 10:085.
    • Section 13 permits limited repair or alteration of existing seepage-pit systems when municipal or public sewage treatment is unavailable and repair or alteration is required because of malfunction, damage, or upgrade.
    • A limited single-family vacant-lot exception applies to certain lots purchased on or before May 1, 1992, if bona fide construction began by December 25, 1992.
    “Except as provided in Section 13 of this administrative regulation, use of seepage pits, cesspools, or dry wells;”
    One more reviewed finding on this topic
  • Well permitNot required

    Construction or abandonment of a private water well by a property owner statewide in Kentucky.

    • Construction, modification, and abandonment must be performed by a Kentucky Certified Water Well Driller.
    • The certified driller must complete and submit required documentation within sixty days after completion.
    • The conclusion concerns owner permitting applications and fees; it does not eliminate the separate driller-certification requirement.

    well documentation submission deadline: 60 days after completion

    “there are no permitting applications or fees for constructing or abandoning a water well required of the property owner.”
    2 more reviewed findings on this topic
    • Not required — Construction or abandonment of a private water well in Warren County by the property owner.
      “In Kentucky, there are no permitting applications or fees for constructing or abandoning a water well required of the property owner.”
    • Limited — Construction, alteration, repair, or abandonment of water supply wells in Kentucky.
      “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”
  • Mandatory utility hookupConditional

    Buildings subject to the Kentucky State Plumbing Code.

    • A building must have an independent connection to either a public or private sewer or sewer system.
    • If a sewer is not available, the house drain must connect to an approved private sewage disposal system.
    • The cited rule does not establish a universal requirement to connect to public water service.
    “If a sewer is not available, the house drain from a building shall connect with an approved private sewage disposal system.”
  • Agricultural exemptionConditional

    Agritourism buildings subject to the Kentucky Building Code.

    • Except as otherwise provided, an agritourism building must comply with the Kentucky Building Code.
    • The exemption applies to an agritourism building built prior to December 31, 2016.
    • The pre-December 31, 2016 building is exempt from seismic requirements.
    • If the building has a capacity of 400 persons or is 6,000 square feet or less, it does not require the services of a Kentucky-licensed architect.

    construction date threshold: < December 31, 2016 · building capacity threshold: <= 400 persons (The statute states "has a capacity of four hundred (400) persons or is six thousand (6,000) square feet or less.") · building area threshold: <= 6000 square feet (The statute states "has a capacity of four hundred (400) persons or is six thousand (6,000) square feet or less.")

    “An agritourism building built prior to December 31, 2016, shall be exempt from the following requirements within the Kentucky Building Code: (a) An agritourism building built prior to December 31, 2016, shall not be required to comply with the seismic requirements within the Kentucky Building Code; and (b) If an agritourism building has a capacity of four hundred (400) persons or is six thousand (6,000) square feet or less, an agritourism building built prior to December 31, 2016, shall not require the services of an architect licensed by the Commonwealth of Kentucky.”
    One more reviewed finding on this topic
    • Conditional — Division of land for agricultural use under Kentucky subdivision law.
      “provided that a division of land for agricultural use and not involving a new street shall not be deemed a subdivision.”
  • Building in a floodplainRequired

    Development in an identified Kentucky floodplain, including development in mapped A and AE zones.

    • Both a state and local floodplain permit are required for development in an identified floodplain.
    • State and local permits are required for development in A and AE zones.
    • The Kentucky Division of Water issues general or individual floodplain permits.
    • General permits cover eligible activities that do not change the Base Flood Elevation and have minimal flood-risk potential.
    • Developments that do not meet general-permit eligibility or could change the Base Flood Elevation require an individual permit.
    • The source directs applicants to consult the local floodplain coordinator for local requirements.

    general permit nonsubstantial improvement threshold: < 50 percent of structure valuation (including labor)

    “Any development in an identified floodplain in Kentucky requires a state and a local floodplain permit.”
  • 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' statutory authority to enact zoning regulations, including county-regulated areas outside incorporated municipalities as determined by the applicable planning-unit and political-boundary structure.

    • The statute expressly authorizes both cities and counties to enact zoning regulations.
    • A zoning regulation must contain text listing the types of zones and regulations applicable in each zone, uniform throughout the zone, and provisions for variances, conditional-use permits, and nonconforming uses.
    • Authorized subjects include land activities, structure dimensions and locations, open-space and distance requirements, density, special-interest districts, fringe areas, and activities or structures near thoroughfares, water bodies, public facilities, aircraft facilities, unique places, and floodplains.
    • Agricultural land must have no regulations except that setback lines may be required for streets and highways; floodway or floodplain buildings or structures may be fully regulated; mobile homes and other dwellings may be regulated; and uses under KRS 100.111(2)(c) may be regulated as conditional uses.
    • The applicable planning unit and political boundaries determine the area governed by a county zoning regulation.
    “Cities and counties may enact zoning regulations which shall contain:”
    One more reviewed finding on this topic
    • General — 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.
      “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.”
    One more reviewed finding on this topic
    • General — Kentucky county authority, as a local government, to enforce the Uniform State Building Code and issue building permits within its jurisdiction, including unincorporated residential construction.
      “Each local government shall employ a building official or inspector and other code enforcement personnel as necessary, or shall contract for inspection and code enforcement services in accordance with subsections (8) and (11) of this section to enforce the Uniform State Building Code within the boundaries of its jurisdiction, except that permits, inspections, and certificates of occupancy shall not be mandatory for single-family residences unless a local government passes an ordinance requiring inspections of single-family residences.”

Still unanswered

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

  • Lot coverage — Lot coverage in Warren County zoning districts.
  • Tiny homes — Occupancy of tiny homes on private land in Warren County.
  • Short-term rentals — Short-term rental operation in Warren County.

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, Kentucky

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

Warren County scores 54/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and strong self-sufficiency basics: 51.9″/yr rainfall plus 39.3% wooded land. Watch-outs: about 126,106 people within a 30-minute drive and a weaker property-autonomy legal backdrop.

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

Warren County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Barren River District Health Department (Onsite Sewage Program). 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, Kentucky?

Land in Warren County runs about $5,899 per acre, based on the latest county data.

What is the water situation in Warren County?

Warren County gets about 51.9" of rain a year, with severe drought in roughly 1.8% of years.

How remote is Warren County?

A representative private-land location has about 126,106 people within a 30-minute drive and 4,570,415 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.

How Warren compares in Kentucky

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