The Jessamine County – City of Wilmore Joint Planning Department at 121 South Main Street in Nicholasville (859-885-6415, Monday to Friday 8:00am to 4:00pm, appointments preferred) provides planning, zoning and building inspection for unincorporated Jessamine County and the City of Wilmore, issuing building permits for new construction and renovations. Nicholasville, the county’s largest city, issues its own building and electrical permits at City Hall, 517 North Main Street (859-885-9385, permits@NicholasvilleKY.gov). The county sits directly south of Lexington-Fayette and has grown by about 7.8 percent since 2020.
The county's shape is set by geography as much as by policy: Lexington's urban service boundary pushes growth south into Jessamine, while the Kentucky River palisades — the steep limestone gorge along the southern edge — form a hard limit beyond which development does not readily go. The Kentucky Building Code and Kentucky Residential Code apply without local amendment as everywhere in the Commonwealth, so the county's control lies in its zoning, its subdivision regulations, its fee schedule and its inspection programme.
This guide covers Jessamine County: the joint department permits the unincorporated county and Wilmore, and Nicholasville permits its own limits. Fayette County to the north is Lexington-Fayette Urban County, and Woodford, Mercer, Garrard and Madison counties around it run their own arrangements.
Two offices in one town. The Jessamine County – City of Wilmore Joint Planning Department on South Main Street permits the unincorporated county and Wilmore; the City of Nicholasville permits inside its own limits from City Hall on North Main Street. The county office asks visitors to book an appointment to meet the planning director or building inspector, so call ahead rather than arriving unannounced.
What requires a building permit in Jessamine County?
What is local in Jessamine County is the inspection programme, the fee schedule, zoning and planning, contractor registration, and the county's zoning and subdivision regulations.
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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 under the county's or the applicable city's ordinance
- 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, and agricultural buildings within the statutory definition
- 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. Jessamine 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 county's zoning and subdivision regulations against Lexington's growth pressure and the palisades boundary.
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 Jessamine County?
The Jessamine County – City of Wilmore Joint Planning Department administers zoning and the building programme for the unincorporated county and Wilmore, with certified inspectors as the state regulation requires of a local programme; inspection requests go to inspectionrequests@jessamineky.gov. Nicholasville, the county’s largest city, issues its own building and electrical permits at City Hall, 517 North Main Street (859-885-9385, permits@NicholasvilleKY.gov), and its own planning and zoning. The planning commissions and boards of adjustments hear zoning matters, the health department handles on-site sewage on unsewered land, and the state Division of Building Codes Enforcement reviews the projects the code assigns to it.
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Get a free quote →| Detail | Information |
|---|---|
| Authority | Jessamine County – City of Wilmore Joint Planning Department (unincorporated county and Wilmore) |
| Office | 121 South Main Street, Nicholasville, KY 40356 |
| Phone | (859) 885-6415 |
| Hours | Monday to Friday, 8:00 am to 4:00 pm; appointments preferred |
| Cities | Nicholasville issues its own building permits (517 North Main Street, 859-885-9385); Wilmore is served by the joint department |
| Codes | Kentucky Building Code and Residential Code, without local amendment |
In 2025, building permits issued in unincorporated Jessamine County authorized 91 new privately owned housing units, 85 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Permit types
Residential permits
A house project in the unincorporated county or Wilmore files with the joint planning department (in Nicholasville, with the city) against the Kentucky Residential Code and the applicable zoning and subdivision regulations, with the electrical, plumbing and heating and air work carried out by state-licensed contractors on their own permits. On unsewered land the health department's on-site sewage approval runs alongside, which on the county's rural southern half is a frequent condition.
Commercial permits
Commercial work in Jessamine County — the Nicholasville corridor along the Lexington road and the industrial land near it — clears zoning first, then building plan review either locally or at the state Division of Building Codes Enforcement depending on which side of the code's jurisdictional division it falls.
Plan review, local programmes and the state's role
In Jessamine County the Kentucky River palisades form a steep southern boundary with slope and access constraints of their own, the health department's on-site sewage approvals govern the unsewered land, and the county's subdivision regulations shape the growth arriving from the north. Fees a local government charges are required by statute to cover the cost of the service performed and not to exceed it.
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Call 1-855-478-4290 →Kentucky has no general contractor licence: the state licenses the trades, and cities or counties may require their own contractor registration. Kentucky rules
Jessamine County permit costs and fees
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 | The county's fee schedule, by project type and construction value |
| Zoning and subdivision | Under the county's or the applicable city's ordinance |
| 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 the state reviews the project |
Growth arrives from a jurisdiction with different rules. Development pressure in Jessamine County comes from Lexington-Fayette, where contractor registration is mandatory and unregistered contractors cannot obtain permits. That requirement is Lexington's own and does not extend south — but a builder moving between the two should not assume the reverse either, and should confirm Jessamine's own requirement before filing.
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Permit required
- Unsewered sites — health department on-site sewage approval alongside the building permit
- 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 Jessamine 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.
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Jessamine County reviews residential work locally and refers the larger commercial projects to the state under the code's division. What delays a file here is a Nicholasville site filed with the county office or the reverse, a subdivision question taken to the permit desk, and a contractor credential assumed from the neighbouring county.
Inspections in Jessamine County
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. Jessamine County inspects in the codes' sequence through its own programme, with electrical inspections carried by a certified electrical inspector as the state regulation requires, and the certificate of occupancy following the finals.
Jessamine County permit search and official resources
- Jessamine County — the county government and its planning office
- Kentucky building codes and jurisdiction — the state-local division of review responsibility
- 815 KAR 7:125 — Kentucky Residential Code — the code governing houses, duplexes 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
When is the planning office open?
The county’s joint planning department lists Monday to Friday, 8:00 am to 4:00 pm, and prefers appointments to meet the planning director or building inspector. Nicholasville’s permits are handled at City Hall during business hours.
Does Lexington's contractor registration apply here?
No. That requirement is Lexington-Fayette's own and does not extend into Jessamine County; confirm the county's own requirement before filing.
Do I need a health department approval?
On unsewered land, yes — on-site sewage approval runs alongside the building permit, which is common in the county's rural south.
Does the state review some projects here?
Yes. Sections 104.15 and 104.16 of the Kentucky Building Code divide jurisdiction, with the state Division of Building Codes Enforcement taking the larger projects.
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.
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.
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Jessamine County takes Lexington’s growth without Lexington’s rules, and splits permitting between the county and Nicholasville. We confirm the local requirement rather than importing the neighbour’s, and file with the office that owns the site.
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Send us the scope and the parcel. We confirm the review path with the Jessamine County – City of Wilmore Joint Planning Department, 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 Jessamine County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.