Adair County, Kentucky Building Permit Guide

Adair County has a local building inspection program: the state’s contact sheet for the county, updated May 27, 2026, lists a local building inspector whose coverage includes the city (the sheet prints “City of Columbus”; the county’s only city is Columbia). Electrical permits come from the local authority through the County Judge/Executive’s office or Columbia City Hall (270-384-2501), plumbing and HVAC permits from the state, and septic permits from the Adair County Health Department on Wellness Way.

What requires a building permit in Adair County?

Because the state lists a local inspector for Adair County, buildings in local jurisdiction go to that inspector rather than to the state’s default for places with no program. The published sources do not include a county building ordinance or a list of the jobs the county permits, so ask the local inspector whether a given job, from a house to a garage, needs a county permit and what it costs. What the state requires is published and applies here whatever the local rule:

The state’s plumbing rules carry a farm carve-out: a farmstead exemption is available for a farm dwelling and farm buildings on 10 acres or more outside a city’s corporate limits, on property with a bona fide agricultural use.

What the county decides and what the state holds

The state’s building code division says a single-family home is reviewed and inspected by the local county or city building official wherever such a program exists, so in Adair County that review sits with the local inspector if the county’s program takes in houses; confirm that with the inspector. Where a county has no single-family program, the state says the builder must still meet the Kentucky Residential Code, but the only inspections are of the mechanical systems, by the state HVAC division and the local electrical inspector. Larger and higher-risk buildings follow the Kentucky Building Code’s split between local and state jurisdiction, and any building the code gives to the state goes to the Division of Building Code Enforcement (502-573-0373) before work begins. The state also issues and inspects plumbing and HVAC permits and licenses the trades.

Adair County building department: who handles permitting

The state’s inspector contact sheet for Adair County lists the local building inspector, notes that the local electrical inspection is arranged through the County Judge/Executive’s office or the city office where the work is done, and gives the state building, manufactured housing, electrical, elevator, HVAC, plumbing and boiler inspectors for the county.

The city in Adair County

Columbia is the county’s only city; all other addresses are unincorporated. The City of Columbia Gas Department, founded in 1953, serves more than 1,300 customers in the city and parts of the county, which matters for gas appliance hookups on a new house.

Adair County permit types

The local inspector supplies the building permit application; the state supplies its own plumbing, HVAC and plan review applications through its online portal.

Residential permits

A house project in Adair County involves up to five separate approvals: the local building permit, an electrical permit through the local authority, a state HVAC permit (bought only by a licensed or authorized person), a state plumbing permit, and a septic permit from the health department where there is no sewer. A homeowner may take out the state plumbing permit personally for a home they occupy or will build for their own use, if they apply before starting, file an affidavit, follow the state plumbing code and do all the work themselves; only one homeowner permit for a new home is issued to a person in five years.

Manufactured homes fall under the state’s manufactured housing section (502-573-1795) for installation. On a septic lot the health department’s electrical release matters too: the district issues no temporary release for a mobile home, so power waits for the permanent release after the septic system passes its final inspection.

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

Commercial permits

For commercial work the first question is jurisdiction. The Kentucky Building Code assigns the larger and higher-risk buildings to the state’s Division of Building Code Enforcement and the rest to the local program; the state’s online portal starts with the instruction to determine whether a project is under local, expanded or state jurisdiction before applying. Commercial plumbing permits are $50 plus $20 per opening, and the state reviews plumbing plans for buildings serving the public.

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

What comes before the building permit

• Septic. A site evaluation and permit from the Adair County Health Department. The Lake Cumberland district’s new-home procedure runs in four steps: apply for the site evaluation ($227) with a floor plan; dig two to four backhoe test pits 42 inches deep and 50 to 100 feet apart in the proposed system area and tell the department; after the soil evaluation the owner receives the system write-up and a temporary electric sticker; then a certified installer applies for the septic permit ($271) with a detailed drawing, and the plumbing inspector receives a copy of that permit before writing the water permit. The district keeps a list of septic tank installers.
• Lot size. The district board of health’s lot size regulation applies to lots created after January 1, 2007: a lot for a home on a private system must have at least 22,000 square feet, and a subdivision of three or more lots needs the health department’s approval of its plat before development. Under the same regulation, where public sewer becomes available the building must connect and a private system is no longer allowed, and no water meter may be installed until a state plumbing permit has been issued.
• City zoning. Inside Columbia, check with the Planning & Zoning Administrator at City Hall.
• Floodplain. Adair County participates in the federal flood program, so a lot in a mapped flood zone needs floodplain review.
• State highway access. A Kentucky Transportation Cabinet permit for any entrance or work in a state road right-of-way. Adair County is in Highway District 8, whose permit supervisor works from Somerset (606-307-6273).
• Gas or utility service. Arranged with the utility, such as the Columbia Gas Department inside its service area.

Adair County permit costs and fees

Local building and electrical fees are quoted by the local inspection program. The state’s published fees apply in every county:

The plumbing figures make a simple check possible: a new house with 15 openings pays the state $50 + (15 × $14) = $260 for its plumbing permit. On a lot without sewer, the health department’s $227 site evaluation and $271 septic permit bring the published state and district charges for that house to $260 + $227 + $271 = $758, before the local building and electrical fees.

Trade permits and who may pull them

• Electrical. The state’s portal does not issue private-property electrical permits and sends applicants to the County Judge/Executive’s office; the Adair sheet adds the city office for work inside Columbia.
• Plumbing. Licensed master plumbers, or homeowners under the state’s homeowner rules, pull the state permit. All other plumbing must be installed by a licensed journeyman working under a licensed master. The state plumbing inspector’s office hours are Tuesdays, 8:00 to 9:30 a.m. Central, at the health department (270-384-2286).
• HVAC. Kentucky has required a permit for all new construction since January 1, 2011, available only to licensed or authorized applicants.
• Licensing. Electricians, plumbers and HVAC contractors are licensed by the state; a plumbing license from another state does not allow work in Kentucky.

How to apply for a building permit in Adair County

Review, corrections and what causes delay

The common delay on a rural lot is septic: the health department must evaluate the site before a system can be permitted, the site application must carry a floor plan signed by the owner, builder or developer showing bedrooms, laundry, kitchen and baths, and a lot created after 2007 must meet the 22,000-square-foot minimum. The district also says an on-site sewage permit must be obtained before a plumbing permit is issued. Commercial projects stall when the jurisdiction question is skipped; a building that belongs to the state cannot start before the state approves its plans. A homeowner plumbing permit covers only the owner’s own residence and work the owner does personally, so a builder or landlord needs a licensed plumber.

Inspections in Adair County

The local building inspector inspects the work in local jurisdiction, including single-family homes if the county’s program covers them, as the state assigns houses to the local building official wherever such a program exists. Separate inspectors handle the trades: the local electrical inspector, the state HVAC inspector and the state plumbing inspector, each tied to its own permit. The health department inspects septic installations, and the district runs training classes for septic installers. Any electric service not on municipal sewer needs an electrical release from the health department: a temporary release once the site is found suitable, and a permanent one after the department approves the septic system’s final inspection; an existing system can be inspected for a release sticker for $110.

Elevators and boilers in commercial buildings have their own state inspectors, listed on the Adair sheet.

Kentucky building code in Adair County

FEMA’s Community Status Book lists Adair County as participating in the National Flood Insurance Program, with a current effective flood map dated December 17, 2010.

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

Permit search and official resources

Local building permit records are held by the local inspection program; ask Columbia City Hall about city records. State plumbing, HVAC and building code filings run through the state’s online portal.

• State contact sheet for Adair County inspectors (May 27, 2026)
• City of Columbia
• City of Columbia departments and staff
• Adair County Health Department
• Lake Cumberland District environmental services
• Septic tank installers list
• New home on-site sewage procedure
• District lot size regulation
• Transportation Cabinet district permit contacts
• State building codes: local and state jurisdiction
• State Division of Building Code Enforcement
• State plumbing permits and fees
• State plumbing permit FAQ and homeowner permits
• State HVAC permits
• State online permit portal (SmartGov)
• Kentucky Transportation Cabinet permits
• FEMA Community Status Book, Kentucky

Adair County permit FAQs

Does Adair County have a building inspector?

Yes. The state’s contact sheet updated May 27, 2026 lists a local building inspector for the county, with coverage that includes the city.

Who reviews a new house?

The local building official if the county’s program covers houses, because the state assigns single-family homes to the local program wherever one exists; ask the inspector.

Where do I get an electrical permit?

Through the County Judge/Executive’s office, or Columbia City Hall for work in the city; not through the state portal.

How much is a plumbing permit for a house?

$50 plus $14 for each opening, paid to the state.

Can I do my own plumbing?

Yes, on a state homeowner permit for a home you live in or are building for yourself, with an affidavit.

Who handles septic systems?

The Adair County Health Department, 801 Wellness Way, Columbia; 270-384-2286.

What does a septic system cost in fees?

The district charges $227 for the site evaluation and $271 for the septic permit, which a certified installer applies for.

Who handles zoning in Columbia?

The city’s Planning & Zoning Administrator at City Hall, 116 Campbellsville Street; 270-384-2501.

Simplify Adair 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 Adair County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.