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Building Codes

Phone: 913-715-2200

111 S. Cherry St., Suite 2000, Olathe, KS 66061

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Frequent Questions

If you have any questions that have not been answered in from the following list of questions, please call us at (913) 715-2233 and we will answer them as soon as possible and may post them on this website.

If you live in Johnson County but within city limits, contact that City Hall (a listing of all the cities in Johnson County). If you live in Johnson County but outside city limits, contact this office. 913-715-2200 or by email.

Speak with or email a Planner for the Unincorporated Area of Johnson County. They will give you information on any restrictions and flood plain information for the property. 913-715-2200.

Records & Tax Administration office, 913-715-0775 or email.

If you live in the Unincorporated Area of Johnson County, view this Instructional Guide on how to register for an account with MyGovernmentOnline and apply for a permit. If you live within city limits contact your City Hall (a listing of all the cities in Johnson County).

Go to the Building Permits page and select type of structure. You will find a check list.

Residential approximately 7 to 10 business days. Commercial approximately 10 to 14 business days. Please allow staff a few more days during the current COVID pandemic. 

You can calculate your own or call for the fee amount, 913-715-2200 | FEE CHART | When do I pay? Residential permits, fees are due when your permit is issued, not submitted. Commercial permits, the plan review fee is due upon submittal and the balance or permit fee is due when the permit is issued. Method of payment: check (payable to: Johnson County Building Codes), ACH, or credit card (there will be a 2.4% service fee assessed to all transactions), American Express is not accepted. 

Unincorporated Johnson County requires that all General, Plumbing, Electrical, Mechanical, Roofing, Pool, Demolition and Sprinkler Contractors be licensed. Each City may vary - See Minimum Class Required.

View the Exemptions page, choose the code that applies. All decks, roofs and new structures require a permit. A permit is required to enlarge, alter, repair, move or demolish. A permit is required to repair, remove, convert, or replace electrical, gas, mechanical, or plumbing. This includes repairs to decks or replacing siding and windows.

For residential purpose, any structure with floor area exceeding 200 sq.' requires a permit. For commercial purpose, any structure with floor area exceeding 120 sq.' requires a permit. Any structure regardless of size has setback requirements, contact the Planning Department, 913-715-220 or by email.

The site plan should include the following information; to scale the size and location of new construction and existing structures on the site, distances from lot lines, the established street grades and the proposed finished grades; and it shall be drawn in accordance with an accurate boundary line survey. Example.

A building permit for residential or commercial properties is not needed unless the fence is over 7' in height. For any fencing under 7' you will need to contact the Planning Department, 913-715-2200, for details pertaining to your area.

Six months from the issue date and remains valid as long as there is an inspection within 6 months. If a permit expires, there may be an additional fee due to renew it. If a permit expires and the required inspections are not performed within 6 months of the issue date, it may result in a citation being issued. It is the responsibility of the General Contractor to ensure a project is final and the permit is closed, unless work was performed by the Homeowner.

Residential plans do not have to be sealed unless non-conventional framing is used. Non-conventional framing can include ICF, straw bale, post framed or steel framed construction. Commercial plans all need to be sealed. 

913-715-2200. As of January 1, 2020 inspections request can be made through the Customer Portal at MyGovernmentOnline.

Call this office, 913-715-2200, to speak with an inspector. We will work with you to bring your inspections up to date.

No, your home must be completely finished. Completely finished includes such commonly overlooked items such as the address being posted, all flooring and wall covering, all landings, and decks. You must also have had your final inspection done from Public Works and Environmental before calling. If a performance energy rated home, the Confirmed HERS report must have been sent to the Plans Examiner or Building Official for approval. 

In order to receive an exemption to the Johnson County Contractor Licensing Regulations, which requires the use of a licensed contractor to do the work, the residence MUST be for the use and occupancy of the homeowner only. It may not be built for sale or lease. Note: All commercial projects must have a licensed General Contractor and licensed Subs listed, the owner cannot do the work.

Contact the City Hall of the city in which you intend to operate/headquarter/locate your business for licensing and zoning approvals. The County has no business licensing requirements except for itinerant daily, door to door sales and auctions, may contact the Records & Taxation Department at 913-715-0775 to confirm.

If you intend to locate a business in the unincorporated area of the County, contact the County Planning Department at 913-715-2200 to receive approval for locating your business in the proper zoning district. Also check: Operating a business in Kansas.

Yes. Arc-Fault Circuit –interrupter protection are required in accordance with 2012 IRC section E3902.12 as amended by Johnson County Code of Regulation.

Floor drains are permitted in detached buildings. The shall be run to daylight. They do not require an inspection.

The Certificate of Occupancy will be emailed to the contact on file once the inspector has entered the passing final inspection results and all other requirements are completed. 

We will only set scheduled times for concrete inspections or inspections on occupied structures.

Due to schedule conflicts and other situations that may cause us to be unexpectedly late, we will no longer give call aheads.

You can call the office at 913-715-2200 with the address of the property and a brief description of what work is being done.

As of January 1, 2020 all permits must be submitted online. Please see this Instructional Guide to assist you with registration and application on MyGovernmentOnline.