Marion County, Kentucky Building Permit Guide

The state’s contact sheet for Marion County, updated May 5, 2026, lists one local building inspector, marked as a city inspector, with an office line of 270-692-6272, and a separate local electrical inspector. It names no countywide building program. So outside the city that inspector serves, non-residential buildings go to the Department of Housing, Buildings and Construction (HBC) for plan approval, while a house is built to the state code with state HVAC and plumbing inspections and a local electrical inspection. Septic and plumbing permits run through the Marion County Health Department on North Spalding Avenue in Lebanon.

What requires a building permit in Marion County?

What you need depends on where the site is and what you are building. The sheet’s city inspector covers building permits in the city it serves; ask the office at 270-692-6272 whether your address is inside that program before you plan around anything below.

What the county decides and what the state holds

Kentucky’s codes are the same everywhere; the local choice is whether to run an inspection program. On the published record, the program in Marion County belongs to a city. HBC’s Division of Building Code Enforcement reviews plans and inspects the larger and higher-risk buildings everywhere, and every non-residential project wherever there is no local program. Manufactured home installation and the site placement of factory-built Kentucky Industrialized Buildings are also state matters, handled by HBC’s manufactured housing and modular sections (502-573-1795).

Marion County building department: who handles permitting

HBC’s county sheet is the published list of who inspects here. Besides the local building and electrical inspectors it names the state building, manufactured housing, electrical, elevator, HVAC, plumbing and boiler inspectors assigned to Marion County.

Cities in Marion County

Lebanon, the county seat, holds most of the county’s city population. The sheet does not name the city its inspector works for, and it lists no inspector for any other city.

Marion County permit types

There is no county permit portal. Local building permits go through the city inspector’s office; state approvals are filed with HBC through its SmartGov portal.

Residential permits

Inside the city program, ask the office which residential work it permits, for its application and for the plans it wants; the sheet does not say whether the program covers houses. Outside it, the house still has to meet the 2018 Kentucky Residential Code, and three things are permitted no matter where you build: the electrical work, the HVAC system and the plumbing. A homeowner can take out the plumbing permit for a home they live in or are building for themselves, but HBC issues only one homeowner permit for a new home to the same person in five years.

Building or remodeling a home here? Alliance handles residential permit filing, so the crew isn't waiting on the counter.

Commercial permits

Non-residential buildings outside a local program are submitted to HBC’s Division of Building Code Enforcement for plan review before construction, and the state building inspector for the county inspects them. Commercial plumbing plans are reviewed by HBC’s Division of Plumbing, which reviews plans for all buildings serving the public. Inside the city program, the local office reviews the smaller buildings the code leaves to it.

For tenant improvements and new commercial builds, Alliance handles commercial permit expediting through issuance. More on this: commercial building permits explained.

What comes before the building permit

• Septic. On a lot without sewer, the health department’s onsite sewage permit settles where the house can go. The Marion County Health Center is part of the Lincoln Trail District Health Department, whose environmental office inspects septic systems in Marion County and posts its septic site evaluation application online.
• Zoning and plats. Ask the city inspector’s office about zoning inside the city; for land outside it, ask the county judge/executive’s office whether any land use or subdivision approval applies.
• Floodplain. Marion County participates in the National Flood Insurance Program, so building in a mapped flood zone needs local floodplain approval.
• State roads. A driveway or other work in a state highway right of way needs a Kentucky Transportation Cabinet encroachment permit from District 4.

Marion County permit fees

Get the local building permit fee from the city inspector’s office (270-692-6272) before you budget. The state publishes its plumbing permit fees, effective March 1, 2022.

Worked example. A new house with 12 plumbing openings: $50 + (12 × $14) = $218 for the state plumbing permit.

Trade permits and who may pull them

• Electrical. The sheet lists a local electrical inspector for Marion County as well as the state electrical inspector; electrical permits and inspections go through the local inspector. HBC licenses electricians and electrical contractors, and a homeowner may wire their own home with a permit.
• HVAC. Marion County is not on HBC’s list of local HVAC jurisdictions, so the HVAC permit is bought from HBC through SmartGov by a licensed or authorized person, and the state HVAC inspector for the county inspects.
• Plumbing. HBC’s Division of Plumbing issues permits and inspects; the plumbing inspector holds office hours Thursday mornings at the health department in Lebanon. Permits go to licensed master plumbers or to homeowners for their own residence; a homeowner must apply before starting, file an affidavit and do all the work personally.
• Boilers and elevators. Each has its own state inspector on the sheet.

How to apply for a building permit in Marion County

Review, corrections and what causes delay

The common mistake is assuming a rural house needs nothing: the trade permits still apply, and plumbing work may not start before the permit is issued. Commercial owners lose time by starting before HBC has approved the plans, which the state requires wherever no local program applies. Plumbing questions are easiest to settle during the inspector’s Thursday office hours.

Inspections in Marion County

Inside the city program, the local building inspector inspects the work that program permits. Outside it, a house gets no building inspections, only the mechanical inspection by the state HVAC inspector and the electrical inspection by the local electrical inspector, plus the state plumbing inspection. Non-residential buildings under state jurisdiction are inspected by HBC’s state building inspector for the county. Manufactured homes are covered by the state manufactured housing inspector.

Kentucky building code

Every building in Marion County is built to the 2018 Kentucky Building Code or Kentucky Residential Code, whether or not a local inspector checks it. FEMA’s Community Status Book lists Marion County as participating in the National Flood Insurance Program, on a flood map dated May 23, 2023.

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 program reviews smaller ones. Kentucky rules

Marion County permit search and official resources

HBC’s SmartGov portal is where state plan approvals and trade permits are filed and tracked. Records of local permits stay with the city inspector’s office; ask there.

• HBC Marion County inspector contact sheet
• HBC Contact an Inspector: all county sheets
• HBC Building Codes: state and local jurisdiction
• HBC Division of Building Code Enforcement
• HBC Division of Plumbing: permits and fees
• HBC plumbing FAQ: homeowner permits and farmstead exemption
• HBC Division of HVAC
• HBC local HVAC jurisdictions
• HBC SmartGov portal
• KYTC highway districts by county
• KYTC permit contacts by district
• Lincoln Trail District Health Department: Marion County Health Center
• Lincoln Trail District Health Department: environmental health and septic
• FEMA Community Status Book, Kentucky

Marion County permit FAQs

Is there a county building inspector in Marion County?

The state contact sheet lists one local building inspector, marked as a city inspector (270-692-6272), and no countywide program.

Does a new house outside the city need a building permit?

The published sources show no local building permit for houses outside a local program. The house must still meet the state residential code, and its electrical, HVAC and plumbing work need permits.

Who approves a commercial building?

HBC’s Division of Building Code Enforcement (502-573-0373) wherever no local program covers the site, and always for the larger buildings the code assigns to the state.

Where do I get a septic permit?

The Marion County Health Department, 516 North Spalding Avenue, Lebanon (270-692-0200).

Can I do my own plumbing?

Yes, in a home you live in or are building for yourself, with an HBC homeowner permit taken out before you start.

What does a plumbing permit cost for a house?

$50 plus $14 for each opening, under HBC’s fees effective March 1, 2022.

Simplify Marion County permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Kentucky. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Marion County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.