KRS Chapter 100 is Kentucky’s planning and zoning law. It gives cities and counties the authority to regulate how land is used and developed, sets up the local bodies that make those decisions, requires a comprehensive plan before zoning can take effect, and defines how property owners challenge decisions they disagree with. If you are building, buying, rezoning, or fighting a neighbor’s project in Kentucky, this chapter governs the process.
Who Makes Zoning Decisions Under KRS 100
Two local bodies do most of the work, and they handle different things.
The planning commission prepares the comprehensive plan, reviews zoning applications, and makes recommendations to the local legislative body (city council or fiscal court) on map and text amendments. Under KRS 100.133, every commission has between five and twenty members, appointed by the local chief executive to four-year terms.1Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.133 – Planning Commission Members, Appointment
The Board of Adjustment is a separate body that handles case-by-case decisions on individual properties. Its three main jobs are:
- Granting or denying conditional use permits for uses the zoning ordinance allows only under certain conditions.
- Granting variances from dimensional requirements such as setbacks, height, or lot width when strict compliance would cause unreasonable hardship.
- Hearing administrative appeals from decisions by zoning enforcement officers.
The board operates as a quasi-judicial body. Its hearings function more like a courtroom than a public meeting: decisions must rest on evidence presented at the hearing, and members are expected to stay impartial until testimony is complete.
The Comprehensive Plan Requirement
Before a Kentucky local government can adopt permanent zoning regulations, its planning commission must prepare a comprehensive plan. KRS 100.183 describes the plan as a guide for public and private decisions about development.2Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.183 – Comprehensive Plan Required Without a valid plan, any zoning ordinance the legislative body adopts lacks legal standing.
The commission must review the plan at least once every five years and amend or readopt it as needed. A plan that has gone stale can undermine the legal basis for zoning decisions that depend on it, which is one of the first things to check if you are considering a challenge.
Zoning Regulations, Maps, and Nonconforming Uses
Once a comprehensive plan is in place, the legislative body can adopt permanent zoning regulations. KRS 100.201 authorizes those regulations to control population density, land-use intensity, parking, flood protection, fire safety, and preservation of historical districts and agricultural land, among other public welfare concerns.3Justia. Kentucky Code 100.201 – Interim and Permanent Land Use Regulations Authorized The zoning map divides the jurisdiction into zones, and the ordinance spells out what is permitted in each one, how tall structures can be, how far they must sit from property lines, and how many dwelling units are allowed per acre.
Grandfathered Uses
When new zoning takes effect, some properties end up out of compliance. A gas station in a newly residential zone becomes a “nonconforming use.” KRS 100.253 allows these uses to continue, but the Board of Adjustment cannot approve expanding or extending the use beyond its scope when the zoning changed.4Justia. Kentucky Code 100.253 – Existing Nonconforming Use, Continuance Switching to a different nonconforming use is only allowed if the new use falls in the same or a more restrictive zoning classification.
There is a ten-year wrinkle worth knowing. If a use has existed continuously for ten years without adverse enforcement action from local officials, it automatically becomes a recognized nonconforming use, even if it was technically illegal when it started.4Justia. Kentucky Code 100.253 – Existing Nonconforming Use, Continuance After the ten-year window closes, the use gains the same legal protections as any other nonconforming use. This catches people on both sides: owners who assume they were grandfathered from day one, and neighbors who wait too long to complain.
Conditional Use Permits
Some uses are listed in the zoning ordinance as conditional, meaning the Board of Adjustment can approve them case by case. Schools in residential zones, drive-through restaurants in commercial districts, and telecommunications towers are typical examples.
KRS 100.237 gives the board broad authority to approve, modify, or deny these applications. When it grants a permit, it can attach conditions such as time limits, pre-conditions that must be met before the use begins, or ongoing operational restrictions, all recorded in the board’s minutes and on the permit itself.5Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.237 – Conditional Use Permits The board can revoke the permit for violations and seek a court order to remove offending structures at the violator’s expense.
Timing is the trap. If the permit holder has not “exercised” the permit within the deadline the board set, or within one year if no deadline was specified, the permit lapses. Under the statute, “exercised” means signing binding construction contracts or making substantial progress on site work.5Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.237 – Conditional Use Permits Sitting on a permit without breaking ground is risky.
One more procedural point. If you modify your plans after approval to comply with building or housing codes, and that modification expands your footprint beyond the original permit boundaries, you must notify the board within fourteen days. Failing to do so is grounds for the board to revoke the permit after a hearing.5Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.237 – Conditional Use Permits
Rezoning Your Property: Map Amendments
To change how a property is zoned, say from residential to commercial, you apply for a zoning map amendment. KRS 100.212 requires you to provide the planning commission with the names and addresses of every adjoining property owner so they can receive notice of the proposed change.6Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.212 – Notice of Hearing on Proposed Map Amendment That information typically comes from current tax records.
The application usually includes a legal description of the property, a site plan showing existing and proposed structures, and documentation on setbacks, parking, and environmental features like floodplains. Local planning staff can help with technical fields such as utility access and drainage.
What the Commission Must Find
The planning commission cannot approve or deny a rezoning based on popularity. KRS 100.213 requires a specific finding: the change must be consistent with the adopted comprehensive plan.7Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.213 – Findings Necessary for Proposed Map Amendment If the commission cannot make that finding, it can still approve the amendment, but only if one of two alternatives applies:
- The current zoning is inappropriate for the property, and the proposed zoning is appropriate.
- Major economic, physical, or social changes have occurred in the area that were not anticipated in the comprehensive plan and have substantially altered the neighborhood’s character.
The findings must be recorded in the commission’s minutes. Many rezoning denials get overturned on appeal because the commission failed to document its reasoning.
KRS 100.211 also requires at least one public hearing on any proposed map or text amendment, with published notice under Kentucky’s legal advertising statute.8Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.211 – Procedure for Amending Zoning Map and Text of Regulation Because the hearing is quasi-judicial, the decision must rest on the record, not on private conversations or outside research.
Appeals: The 30-Day Deadline
If you disagree with a final decision by the Board of Adjustment, the planning commission, or the local legislative body on a zoning matter, KRS 100.347 gives you thirty days to file an appeal in circuit court. Miss that window and the decision becomes immune to judicial review.9Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.347 – Appeal from Board of Adjustment, Planning Commission
Standing is narrow. You must own real property in the same zone as the property that was the subject of the decision. Living nearby or objecting as a concerned citizen is not enough. The body whose decision is being challenged automatically becomes a party to the appeal.9Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.347 – Appeal from Board of Adjustment, Planning Commission
Two nuances on what qualifies. A planning commission’s recommendation to another governmental body is not an appealable final action; only decisions with their own legal effect, such as granting or denying a conditional use permit or variance, qualify. And where the commission grants a variance or conditional use as part of a map amendment, the thirty-day clock does not start until the legislative body acts on the map amendment itself.9Kentucky Legislative Research Commission. Kentucky Revised Statutes 100.347 – Appeal from Board of Adjustment, Planning Commission
Penalties for Violations
Violating zoning regulations under KRS 100.201 through 100.347 carries fines ranging from $10 to $500 per conviction. Each day the violation continues counts as a separate offense, so ignoring an enforcement notice for weeks can compound penalties quickly. Illegally subdividing or transferring lots carries a separate fine of $100 to $500 per lot involved in the transaction.
Where Federal Law Overrides KRS 100
Kentucky’s planning authority is not unlimited. Two federal laws cut into local zoning power on specific types of projects.
The Telecommunications Act of 1996 preserves local authority over cell tower placement but imposes hard limits. Under 47 U.S.C. § 332(c)(7), local governments cannot unreasonably discriminate among wireless providers, cannot effectively prohibit wireless service through zoning, and cannot regulate radio frequency emissions more strictly than FCC standards allow.10Office of the Law Revision Counsel. 47 USC 332 – Mobile Services Any denial must be in writing and supported by substantial evidence. Presumptive deadlines run 90 days for co-location requests and 150 days for new tower applications; missing them can give the applicant grounds for court intervention.
The Religious Land Use and Institutionalized Persons Act (RLUIPA) bars local governments from using zoning to impose a substantial burden on religious exercise unless the restriction serves a compelling interest and is the least restrictive means of achieving it. RLUIPA also prohibits treating religious assemblies worse than comparable secular ones, discriminating by denomination, or totally excluding religious institutions from a jurisdiction.11U.S. Department of Justice. Religious Land Use and Institutionalized Persons Act of 2000 A denial that would not have been applied to a secular community center is vulnerable to a federal challenge.