Johnson County's Department of Planning, Housing and Community Development at 111 South Cherry Street in Olathe holds an unusual dual role. Its Contractor Licensing Division issues around eleven classes of construction contractor licence used across every city in the county — Overland Park, Olathe, Lenexa, Shawnee, Leawood, Prairie Village and the others — while its planning and zoning function permits construction only in the unincorporated county. A contractor deals with the county for the credential and with a city for the permit; a landowner in the rural county deals with the county for both.
That arrangement exists because Kansas licenses no contractors at state level and adopts no state building code. Rather than leave twenty municipalities each running a separate licensing scheme, the county's cities pool the credential and keep their own codes and permits — which is why a Johnson County licence works across the county but a code answer from one of its cities does not transfer to the next. The county is the most populous in Kansas, with over six hundred thousand residents, and the licence stops firmly at its boundary.
This guide covers Johnson County, its contractor licensing for the county's cities, and its permitting for unincorporated territory. Overland Park, Olathe, Lenexa and Shawnee issue their own permits under their own adopted codes; Wyandotte, Miami and Douglas counties around it run their own arrangements.
One credential, twenty code regimes. The county licence covers contracting across all of Johnson County's cities, but each city adopts and amends its own codes and issues its own permits. Holding the licence answers who may do the work; it says nothing about what the work must comply with, and that varies from one city to the next inside the same county.
What requires a building permit in Johnson County?
Kansas has no statewide building code at all. It is a home rule state: the responsibility for adopting and enforcing building and energy codes lies entirely with cities and counties, and there is no state code agency. The one mandatory statewide instrument is the Kansas Fire Prevention Code, enforced by the Office of the State Fire Marshal, which a local jurisdiction may make more stringent but not less; the State Fire Marshal also holds plan review jurisdiction over particular occupancies such as schools, and the Department of Administration adopts the codes that apply on state-owned property. Everything else is Johnson County's own. What that means in practice is that the adopted edition and the local amendments must be verified for the specific address before design begins — what complies in one Kansas city may not comply in the next. Johnson County's layer is the whole of it: the adopted codes and amendments, the permit office, the fee schedule, zoning, contractor licensing, and the county's contractor licensing and its unincorporated-area permitting.
The exemption line is Johnson County's to draw, because the code is Johnson County's to adopt. Ordinary repairs and like-for-like replacement generally need no permit; new circuits, moved outlets, altered wiring, structural work and any change of occupancy generally do. The Kansas Fire Prevention Code applies regardless, and the Kansas State Board of Technical Professions decides when a licensed architect or engineer must seal the drawings.
Typically permit required
- A county contractor licence in the matching class, for contracting anywhere in the county's cities or its unincorporated area
- A county building permit for construction in unincorporated Johnson County
- A city permit from the relevant municipality for construction inside any city's limits
- New buildings, additions and any structural work on an existing building
- Alterations, repairs and renovations, and any change of occupancy
- Decks, accessory structures above the local threshold, retaining walls, storm shelters and swimming pools
Often exempt
- Handyman work — the county requires no handyman licence, its concern being that unlicensed work remains non-structural
- Ordinary repairs that do not alter structure, egress or systems
- Direct like-for-like replacement of a fixture, where the local jurisdiction allows it without a permit
- Painting, papering, flooring, cabinets and similar finish work
- Small accessory structures below the local threshold — the zoning ordinance still applies
What is actually local, and what is not
In Kansas almost everything is local. Johnson County adopts its own building, residential, mechanical, plumbing and electrical codes, amends them as it sees fit, sets its fee schedule, runs its permit office and inspections, administers zoning, and decides any contractor licensing. What is not local is the Kansas Fire Prevention Code, the State Fire Marshal's jurisdiction over certain occupancies and state-owned property, the Board of Technical Professions' rules on when a design professional must seal drawings, and the county licensing division serving every city in the county, and the county's own permitting in its unincorporated area.
Who handles permitting in Johnson County?
The Department of Planning, Housing and Community Development houses the Contractor Licensing Division issuing licences used across the county's cities, and the planning and zoning function permitting construction in unincorporated territory. Each city's own building department issues permits inside its limits under its own adopted codes, the Kansas State Board of Technical Professions sets the threshold for sealed drawings, and the Office of the State Fire Marshal enforces the mandatory Kansas Fire Prevention Code.
| Detail | Information |
|---|---|
| Department | Johnson County Planning, Housing and Community Development |
| Office | 111 South Cherry Street, Suite 3500, Olathe, KS 66061 |
| Phone | (913) 715-2201; contractor licensing (913) 715-2233 |
| Hours | Monday to Friday, 8:00 am to 5:00 pm |
| Licensing | Around eleven construction contractor licence classes |
| County permits | Unincorporated territory only; cities permit their own |
Permit types
Residential permits
A house in unincorporated Johnson County is permitted by the county against the codes the county has adopted, with the contractor holding a county licence in the matching class. A house inside any of the county's cities is permitted by that city under its own adopted codes — the licence is the same, the code is not, and the applicable ordinance is the city's.
How Kansas contractor credentials work
Kansas issues no statewide contractor licence of any kind — not for general contracting and not for the trades. Licensing and registration are set by each city and county, which means a credential earned in one jurisdiction does not carry into the next, and a contractor working across a metropolitan area may hold several. Some jurisdictions participate in regional reciprocity arrangements that recognise a neighbouring authority's examination; others do not. Johnson County's own requirement is the credential to confirm before a permit is pulled, and the Kansas State Board of Technical Professions separately decides the threshold at which a licensed architect or engineer must seal the construction documents.
Commercial permits
Commercial work in unincorporated Johnson County clears the county's zoning and site development, then plan review against the county's adopted codes. Inside the cities the county's role is the licence alone. Sealed drawings are required where the Kansas State Board of Technical Professions' threshold is met, and the State Fire Marshal reviews the occupancies within its jurisdiction.
Verifying the code before design
Because there is no state code, the first step on any Kansas project is confirming which editions Johnson County has adopted and which amendments it has made — the adoption ordinance rather than the model code is the governing document, and jurisdictions across the state sit on different editions. Local departments publish their adoption ordinances online or will supply them on request. The State Fire Marshal's review runs alongside on the occupancies it covers, and the Board of Technical Professions' thresholds decide whether sealed drawings are required. In unincorporated Johnson County the Blue River, Kill Creek and Cedar Creek corridors bring floodplain review into the file, rural water district service and on-site wastewater govern much of the buildable land, and the Kansas Fire Prevention Code applies as the one mandatory statewide instrument. An assumption that a neighbouring city's code is the same is the most common and most expensive mistake made in Kansas permitting.
Johnson County permit costs and fees
Licensing fees are the county's and charged whether the work is in a city or not; permit fees follow whichever authority issues the permit.
| Item | Fee or rule |
|---|---|
| Contractor licence | County application and licence fees, in the matching class |
| County building permit | The county's adopted fee schedule, for unincorporated territory |
| City permits | Each city's own schedule, for work inside its limits |
| On-site wastewater | County approval where the land is unsewered |
| Sealed drawings | Where the Board of Technical Professions' threshold is met |
| Codes | The county's for unincorporated land; each city's own inside its limits |
The licence stops at the county line. A Johnson County licence covers contracting across the county's cities, but it is not recognised outside the county — Wichita's joint department states plainly that it does not reciprocate, and Kansas has no state licence to bridge them. A contractor working the Kansas City metropolitan area on both sides of a county boundary carries more than one credential.
Trade permits and who may pull them
Trade work is permitted separately under the codes the jurisdiction has adopted, and inspected by its own inspectors under whatever licensing it requires.
Permit required
- Contracting anywhere in the county — a county licence in the matching class, before any city permit
- Electrical — separate permit under the locally adopted electrical code, with local licensing
- Plumbing — separate permit under the locally adopted plumbing code, with local licensing
- Mechanical — separate permit under the locally adopted mechanical code, with local licensing
- Fire protection — under the Kansas Fire Prevention Code and the State Fire Marshal's jurisdiction where it applies
Typically exempt
- Direct like-for-like fixture replacement where the local jurisdiction allows it
- Work the locally adopted trade codes place below the permit threshold
How to apply for a Johnson County building permit
There is no state code; confirm the editions and amendments this jurisdiction has adopted before design begins.
Zoning, platting and site development approvals precede the building permit and are entirely local.
Kansas licenses no contractors at state level; the requirement is the city's or county's own and does not transfer.
The Kansas State Board of Technical Professions sets the threshold for a licensed architect or engineer.
Reviewed against the locally adopted codes and amendments, with the Fire Prevention Code applying throughout.
Footing to final, with the trades on their own permits, then the certificate of occupancy.
Review, corrections and what actually causes delay
Johnson County reviews permits for unincorporated territory and verifies licences for work anywhere in the county. What delays a project here is a licence class that does not cover the work, and a design built to one city's amendments and filed in another.
Inspections in Johnson County
Inspections follow the sequence of the codes the jurisdiction has adopted — footing, foundation, framing, rough trades, insulation and final — requested from the city's inspection division by permit number, with the trades inspected on their own permits. Work that passes final receives a certificate of occupancy for new buildings and changes of occupancy. Johnson County inspects the work it permits in unincorporated territory in the sequence its adopted codes set; inside the cities, inspection is the city's, carried under its own adopted codes.
Johnson County permit search and official resources
- Johnson County Planning, Housing and Community Development — the department, its licensing division and its permitting
- Kansas State Board of Technical Professions — when a licensed architect or engineer must seal the drawings
- Office of the Kansas State Fire Marshal — the Kansas Fire Prevention Code, mandatory statewide
- Office of the Kansas State Fire Marshal — the Kansas Fire Prevention Code, mandatory statewide, and the occupancies it reviews
- Kansas State Board of Technical Professions — when a licensed architect or engineer must seal the construction documents
- Kansas Department of Administration, Facilities and Property Management — the codes applying to construction on state-owned property
Frequently asked questions
Does the county issue permits inside the cities?
No. The county permits construction in unincorporated territory; each city issues its own permits under its own adopted codes. The county's licence, however, covers contracting across all of them.
How many licence classes are there?
Around eleven classes of construction contractor licence, issued by the county's Contractor Licensing Division at Olathe.
Does the licence work in other Kansas counties?
No. Kansas licences are local and Wichita's department states it does not reciprocate; a contractor crossing county lines holds more than one.
Do I need a handyman licence?
The county does not require one; its focus is on unlicensed work remaining non-structural.
Which codes apply to my project?
The county's adopted codes in unincorporated territory, and the relevant city's inside its limits. Kansas has no statewide building code, so the adoption ordinance is the governing document.
Is anything mandatory statewide?
Only the Kansas Fire Prevention Code, enforced by the State Fire Marshal, which a local jurisdiction may make more stringent but not less.
Simplify Johnson County permitting with Alliance Permitting
Johnson County splits the credential from the code, and both matter. We hold the right licence class for the county and read the right ordinance for the city.
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Send us the scope and the parcel. We confirm the review path with the Johnson County Department of Planning, Housing and Community Development, assemble the submittal, file it, and track it through issuance — corrections included.
More Kansas permitting guides
More Kansas permitting guides
This guide is provided by Alliance Permitting for general information about Johnson County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.