The Warren County Division for Building Services, part of the county’s Public Works department at 1141 State Street in Bowling Green (270-843-5360, Monday to Friday 8:00am to 4:00pm), enforces the Kentucky codes and issues building and electrical permits across Warren County except the cities of Bowling Green and Oakland. Bowling Green has its own Building Division on East Main Avenue. The county has grown faster than any other in the Commonwealth — about 11 percent since 2020 — and that growth is what most shapes the work, with subdivision development pushing steadily outward from the city into the county’s farmland.
The geology shapes the rest. Warren County sits on karst limestone: sinkholes, springs and cave systems run beneath a great deal of it, and foundation design, stormwater handling and septic siting all have to reckon with ground that can drain abruptly and settle unpredictably. The Kentucky Building Code and Kentucky Residential Code apply without local amendment, as everywhere in the Commonwealth, so the county's layer is its zoning, its subdivision regulations and its inspection programme.
This guide covers Warren County outside Bowling Green and Oakland. The City of Bowling Green has its own building office but shares the county’s joint zoning ordinance and planning commission; Simpson, Allen, Barren, Edmonson, Butler and Logan counties around it run their own programmes.
Karst ground changes the foundation question. Warren County sits on karst limestone, with sinkholes, springs and cave systems beneath much of it. Foundation design, stormwater management and on-site sewage siting all have to account for ground that drains abruptly and can settle without warning — a geotechnical question that arrives before the code question on a great many sites here.
What requires a building permit in Warren County?
What is local in Warren County is the inspection programme, the fee schedule, zoning and planning, contractor registration, and the joint city-county zoning ordinance and planning commission.
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- Any construction, alteration, repair, demolition or change of occupancy under the Kentucky Building Code or Residential Code
- Zoning and subdivision approval, administered by the joint city-county planning arrangement
- Electrical, plumbing and heating and air work, each by a state-licensed contractor on its own permit
- New buildings, additions and any structural work on an existing building
- Alterations, repairs and renovations under the building or residential code, and any change of occupancy
- Decks, accessory structures above the code threshold, retaining walls over 4 feet and in-ground swimming pools
Often exempt
- Ordinary repairs that do not alter structure, egress or systems
- Ordinary repairs that do not alter structure, egress or systems
- Painting, papering, flooring, cabinets and similar finish work
- Like-for-like replacement that the codes place below the permit threshold
- Small accessory structures below the code's threshold — the zoning ordinance still applies
What is actually local, and what is not
The code is the Commonwealth's and cannot be added to. Warren County's layer is its building inspection programme and the certified inspectors staffing it, the fee schedule its ordinance sets, the zoning ordinance and planning commission that govern use and site development, any local contractor registration it requires, and the karst geology that governs foundations and stormwater, and the planning commission shared with Bowling Green.
Kentucky has one mandatory statewide building code that local governments may not add to. Cities and counties enforce it and run zoning. The state reviews plans for larger and higher-risk buildings, and the local programme reviews smaller ones. Kentucky rules
Who handles permitting in Warren County?
The Warren County Division for Building Services is the enforcing authority outside Bowling Green and Oakland, issuing building and electrical permits with certified inspectors as the state regulation requires. Bowling Green’s Building Division is a separate office. The City-County Planning Commission of Warren County administers the joint zoning ordinance and subdivision regulations for the county and its five cities, the health department handles on-site sewage in the unsewered county and houses the state plumbing inspectors, and the state Department of Housing, Buildings and Construction retains its role on certain commercial projects and licenses the trades.
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Get a free quote →| Detail | Information |
|---|---|
| Authority | Warren County Division for Building Services |
| County office | Warren County Division for Building Services, 1141 State Street, Bowling Green, KY 42101 |
| Phone | (270) 843-5360 |
| Hours | Monday to Friday, 8:00 am to 4:00 pm |
| City office | Separate: City of Bowling Green Building Division, 707 East Main Avenue (270-393-3615) |
| Codes | Kentucky Building Code and Residential Code, without local amendment |
In 2025, building permits issued in unincorporated Warren County authorized 939 new privately owned housing units, 577 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Permit types
Residential permits
A Warren County house project files with the county's Division for Building Services against the Kentucky Residential Code and the joint zoning ordinance, with the geotechnical position on karst ground settled before the foundation is designed. The electrical, plumbing and heating and air work is carried out by state-licensed contractors on their own permits, and on unsewered land the health department's on-site sewage approval runs alongside.
Commercial permits
Commercial and industrial work in Warren County — the interstate corridor and the automotive supply base around Bowling Green carry much of it — clears zoning and subdivision review, then building plan review by the county’s building office, with the state department retaining a role on certain commercial projects, elevators and boilers.
Plan review, local programmes and the state's role
In Warren County the karst terrain governs stormwater and foundation design, the Barren River corridor brings floodplain review into the file, and the joint city-county planning commission administers the zoning and subdivision regulations. Fees a local government charges are required by statute to cover the cost of the service performed and not to exceed it.
Kentucky has no general contractor licence: the state licenses the trades, and cities or counties may require their own contractor registration. Kentucky rules
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Fees follow the county's schedule, which by statute may not exceed the cost of the service performed, with the trades permitted separately under the state licences.
| Item | Fee or rule |
|---|---|
| Building permit | $0.15 per square foot of building area under construction, minimum $45 (Fiscal Court Resolution 21-54) |
| Zoning and subdivision | Administered by the joint city-county planning commission |
| Trade permits | Electrical, plumbing and heating and air by state-licensed contractors |
| On-site sewage | Health department approval on unsewered land |
| Statutory limit | Local fees may not exceed the cost of the service performed |
| State fees | Department fees where it reviews the project |
Two building offices, one zoning ordinance. Warren County and Bowling Green run separate building offices — the county’s on State Street, the city’s on East Main Avenue — but share the City-County Planning Commission and one joint zoning ordinance. A project’s side of the city line decides which building office and fee schedule apply; the code, under Kentucky’s mini/maxi framework, is identical on both sides.
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Permit required
- Karst sites — geotechnical assessment before foundation and stormwater design
- Electrical — state-licensed electrical contractor; separate permit and a certified electrical inspector
- Plumbing — state-licensed master plumber; separate plumbing permit, inspected under the state plumbing code
- Heating and air conditioning — state-licensed HVAC contractor; separate mechanical permit
- Fire sprinkler and fire alarm — sprinklers by a state-licensed fire sprinkler contractor and alarms by a state-licensed electrical contractor; system plans are reviewed with the building plans, and the fire official may inspect
Typically exempt
- Like-for-like replacement the trade codes place below the permit threshold
- Electrical or heating and air work a homeowner does on their own home, which state law exempts from the trade licence — a permit is still needed
The trades are permitted separately and done by contractors holding state licences. Kentucky rules
How to apply for a Warren County building permit
Zoning approval, and planning commission or site development review where the ordinance requires it, precede the building permit.
The state reviews plans for larger and higher-risk buildings, and the local programme reviews smaller ones; homes are local.
The state licenses the trades; general contractor registration, where it exists, is the city's or county's own.
Reviewed against the Kentucky Building Code or Kentucky Residential Code as adopted, with no local amendments to satisfy.
Fees are set by local ordinance and by statute may not exceed the cost of the service performed.
Footing to final, with the trades inspected on their own permits, then the certificate of occupancy.
Review, corrections and what actually causes delay
Warren County reviews through its Division for Building Services, in a county whose growth rate keeps its inspectors busy. What delays a file here is a foundation designed before the karst ground was assessed, and a site whose city-or-county position was assumed rather than checked.
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Inspections follow the codes' sequence — footing, foundation, framing, rough trades, insulation and final — and are requested from the local inspection programme by permit number, with the electrical inspections carried by a certified electrical inspector. Work that passes final receives a certificate of occupancy for new buildings and changes of occupancy. Warren County inspects in the codes' sequence through its Division for Building Services (book on 270-843-5360, allowing at least two business days), with electrical inspections carried by a certified electrical inspector as the state regulation requires, and the certificate of occupancy following the finals.
Warren County permit search and official resources
- Warren County Fiscal Court — the county government and its building inspection office
- Kentucky Department of Housing, Buildings and Construction — the statewide codes and trade licensing
- 815 KAR 7:125 — Kentucky Residential Code — the code governing one- and two-family dwellings and townhouses
- Kentucky Department of Housing, Buildings and Construction — the statewide codes, trade licensing and the Division of Building Code Enforcement
- 815 KAR 7:120 — Kentucky Building Code — the mandatory uniform state building code and its general provisions
- 815 KAR 7:125 — Kentucky Residential Code — the code governing one- and two-family dwellings and townhouses
Inspections are where schedules slip.
Get a free quote →Frequently asked questions
Do the county and the city share a building division?
No. The county’s Division for Building Services permits outside Bowling Green and Oakland, and Bowling Green has its own Building Division. What they share is the City-County Planning Commission and one joint zoning ordinance.
What does karst geology mean for my project?
Sinkholes, springs and cave systems run beneath much of the county, so foundation design, stormwater handling and on-site sewage siting all have to account for ground that can drain abruptly and settle unpredictably.
Can the county amend the building code?
No. Kentucky's mini/maxi framework means no local government may adopt or enforce any other building code; the county's layer is zoning, subdivision regulation, fees and the inspection programme.
Who licenses the trades?
The state Department of Housing, Buildings and Construction licenses electrical, plumbing and heating and air contractors, valid across the Commonwealth.
Is there a local contractor licence?
Kentucky issues no statewide general contractor licence; confirm any local registration requirement with the division before applying.
Which code editions apply?
The 2018 Kentucky Building Code, Fourth Edition and the 2018 Kentucky Residential Code, Third Edition, both built on the 2015 International Codes with Kentucky amendments.
Simplify Warren County permitting with Alliance Permitting
In Warren County the ground is the first design question and the city line is the second. We settle the karst assessment before the foundation, place the site on the right side of the line, and file with the building office that covers it.
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Send us the scope and the parcel. We confirm the review path with the Warren County Division for Building Services, assemble the submittal, file it, and track it through issuance — corrections included.
More Kentucky permitting guides
More Kentucky permitting guides
This guide is provided by Alliance Permitting for general information about Warren County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.