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Kenton County, KY Building Safety: Building Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Adopted codes
Kentucky Building Code and Residential Code
Enforcement agency
Northern Kentucky Area Planning Commission
Minimum permit fee
$100 building permit
New construction fee
$.10 per square foot
Early-start penalty
fees doubled under § 150.31
State code fine
$10 to $1,000 per offense
Coverage
unincorporated Kenton County only

Summary

Kenton County has adopted the Kentucky Building Code and Kentucky Residential Code in full, extending mandatory permits and inspections to every single-family dwelling built or remodeled in the unincorporated county. The Northern Kentucky Area Planning Commission enforces the codes, and a minimum $100 building permit fee applies to covered projects.

These county ordinances apply to unincorporated areas of Kenton County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(A) The Kentucky Building Code, promulgated in 815, KAR 7:120, and the Kentucky Residential Code, promulgated in 815 KAR 7:125 by the Board of Housing, Buildings and Construction, Commonwealth of Kentucky, together with any future amendments, are hereby adopted in full as a county ordinance as if set out fully at length herein. ... (C) Pursuant to KRS 198B.060(8), a building inspection program is hereby established in the county for application to all buildings, including single-family dwellings, as provided in the adopted codes. ... § 150.02 APPLICATION. The application of the Kentucky Building Code is hereby extended to all single family dwellings in unincorporated Kenton County which are to be constructed or remodeled. ... § 150.32(B): There shall be a minimum building permit fee of $100 for any permit issued under divisions (B)(1) or (B)(2) detailed below.

Full Breakdown

01 adopts the Kentucky Building Code (815 KAR 7:120) and Kentucky Residential Code (815 KAR 7:125), together with future amendments, in full as county ordinance, with a copy kept on file in the Office of the County Clerk. The Northern Kentucky Area Planning Commission (NKAPC) is designated the local enforcement agent for the Kentucky Building Code in unincorporated Kenton County, and every building and electrical inspection must be performed by a person certified by the Kentucky Department of Housing, Buildings and Construction. 060(8), the county has established a building inspection program covering all buildings, including single-family dwellings.

02 makes that requirement explicit for houses: the Kentucky Building Code applies to every single-family dwelling in unincorporated Kenton County that is constructed or remodeled, so a permit and inspection are required whether the project is new construction or a remodel. 10 per square foot of total floor area, including garage space. Projects that require state plan review pay half the published county rate. 32(E) and (F).

Violations & Fines

Starting work before the permit issues does not carry a stand-alone criminal fine in this chapter; instead § 150.31 doubles all fees owed to the county for work begun without the necessary permits. Violating the adopted Kentucky Building Code itself is punishable under § 150.99(B)(1) with a fine of not less than $10 nor more than $1,000 per offense under KRS 198B.990(1).

Frequently Asked Questions

Do I need a permit to remodel a single-family house in unincorporated Kenton County?
Yes. Section 150.02 extends the Kentucky Building Code to every single-family dwelling in unincorporated Kenton County that is constructed or remodeled, and § 150.01 requires Northern Kentucky Area Planning Commission inspection of the work.
How much does a Kenton County building permit cost?
Section 150.32(B) sets a $100 minimum building permit fee, with new single- and two-family construction billed at $.10 per square foot of total floor area including the garage. Projects needing state plan review pay half the published county rate.
What happens if I start construction before getting a Kenton County building permit?
Section 150.31 doubles every fee that would have been owed to the county for work performed at that location before the required permit was obtained.
Who inspects building work in unincorporated Kenton County?
The Northern Kentucky Area Planning Commission, designated under § 150.01(B) as the local enforcement agent, and every inspection must be performed by a person certified by the Kentucky Department of Housing, Buildings and Construction.

Sources & Official References

Other rules in Kenton County

All Kenton County rules

Compare Kenton County to another location·View the Kentucky building safety overview

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