How to Pull a Permit for a Home Remodel in Johnson County, KS

A practical homeowner guide to finding the right permit authority, preparing plans, budgeting fees, and scheduling inspections for a Johnson County, Kansas remodel.

Planning · 6 min read · Updated 2026-09-26 · By Kris Kohrs, Owner — Precision Home Concepts (2001-present)

If your remodel address is in an incorporated Johnson County city—such as Overland Park, Olathe, Lenexa, Shawnee, or Prairie Village—start with that city’s building-permit office, not Johnson County Building Codes. Johnson County Building Codes handles projects in unincorporated Johnson County; first confirm the address, then submit the right plans and application, pay the jurisdiction’s fees, and complete the required inspections before closing the permit.[1][2]

A permit is the local review-and-inspection path for the scope you are proposing. For a kitchen, basement, addition, structural change, or trade work, identify the authority and document requirements while the design is still flexible. This is a homeowner roadmap, not a substitute for directions from the jurisdiction serving your address.

Confirm who has jurisdiction before you design

“Johnson County” is a location, but it is not always the permitting authority. The county’s Building Codes division tells applicants to search the property address or KUPN number first. If the result is Unincorporated Area, proceed with the county application. If the result shows a city name, contact that city’s planning or building department instead.[1] Johnson County’s unincorporated-area guidance likewise says the county’s regulations apply outside city limits and that cities have their own zoning requirements and building codes within their boundaries.[2]

The portal, checklist, fees, review comments, and inspection scheduling can differ by city. Olathe, for example, requires online submittal and lists construction documents, fees, and a homeowner affidavit when an owner does primary-residence work without a licensed contractor.[5] Treat that as city-specific administration—not a rule for another Johnson County municipality.

Before applying, use the responsible agency’s current project page to check whether the described work needs a building permit or separate trade permits. For unincorporated Johnson County, the county says a permit is required to enlarge, alter, repair, move, or demolish, and it specifically calls out work involving electrical, gas, mechanical, or plumbing systems. It also says decks, roofs, and new structures need permits; do not assume a “repair” is automatically exempt.[3] If the project includes a wall change, begin with the scope and structural question in our wall-removal permit guide, then verify the answer with the jurisdiction serving the address.

Assemble a permit-ready scope and documents

A complete submission begins with a clear scope: what is being removed, built, relocated, or replaced; which rooms and systems are affected; and who will perform each part. Put that scope on drawings rather than relying on a verbal description. A good homeowner package also identifies the property, contractor or homeowner applicant, and the mechanical, electrical, plumbing, roofing, or framing work that may require separate paperwork.

For a residential remodel in unincorporated Johnson County, the county checklist calls for a residential building permit application, scaled site plan, and land-disturbance certification. The site plan must show new and existing structures, lot-line distances, street and finished grades, and, where relevant, septic components; it must be based on an accurate boundary-line survey.[1] Upload plans with the application, including elevations plus framing, floor, and footing/foundation plans.[1]

Add documents triggered by the property and scope. The county identifies possible septic documentation, an entrance/driveway permit, subcontractor forms, and a homeowner-installation form. Existing septic systems need an Environmental location check, projects adding bedrooms may need a DHE permit, and a first or additional property entrance requires a Public Works inquiry.[1] For floodplain or land-use questions, call Planning and Zoning at 913-715-2200.[1]

Special design conditions can require more than ordinary drawings. The county says unusual construction, including its examples of steel framing, pole/post-frame construction, log homes, ICF, and straw bale, must be designed and sealed by a Kansas-registered licensed design professional. It also calls for sealed truss packages and I-joist floor/roof layout plans where used.[1] Settle structural and product decisions before upload. A coordinated design-build process can keep scope and documents aligned.

Submit, budget for fees, and allow review time

For unincorporated Johnson County projects, applications have been online-only since January 1, 2020, and the county uses MGO Connect for applications, plan uploads, payment, inspection requests, status checks, approved-plan downloads, and inspection reports.[1][3] Create the account early, upload required materials together, and retain the permit number and approved documents.

Budget separately for permit and construction costs. Johnson County says residential permit fees are due when the permit is issued rather than when it is submitted. The county’s published fee chart specifies a $50 residential plan-review fee for residential projects and says the building-permit valuation includes the total value of the permitted work, including permanent electrical, gas, mechanical, plumbing equipment, materials, and labor.[3][4] That $50 figure is a county plan-review fee, not a universal price for every city or every remodel. Ask the responsible jurisdiction to calculate or confirm the entire fee before treating it as a project budget line.

The county estimates approximately seven to 10 business days for residential permits.[3] Use that as a planning window for a complete, ordinary submission—not a promised approval date or a start-work authorization. Missing plans, property-specific conditions, design revisions, or extra approvals can change the path. Wait for issuance and any required approvals before work that requires the permit begins.

If hiring a contractor, put permit responsibility in the written agreement: applicant, included permits, review comments, and inspections. The Kansas Attorney General advises consumers to check local permit requirements and be cautious if a contractor asks the homeowner to obtain the permit, because it can signal a registration issue.[6] Verify credentials and roles; it is not a conclusion about any particular contractor. See our Overland Park remodeling contractor services.

Build to the approved plans and manage inspections

Keep the issued permit and approved plans accessible at the jobsite. Johnson County states that an inspection will not be performed without approved plans on site.[1] Do not cover work simply because the installation looks complete; schedule the inspection at the stage required by the authority having jurisdiction. Typical county remodel inspection categories include underground plumbing or electrical, rough electrical/plumbing/mechanical/framing, insulation, drywall before taping, window installation, exterior wall coverings, gas piping, electrical service, and final inspection.[1]

Plan lead time into the schedule. For unincorporated Johnson County, concrete inspections for a same-day pour need at least two hours’ notice; the other listed inspections need at least a half-day.[1] Coordinate trades so rough work remains visible for inspection.

Johnson County says a residential permit is valid for six months from issue and remains valid while an inspection occurs within six months. Expiration can bring a renewal fee, and a failure to obtain required inspections within six months may result in a citation.[3] If the remodel needed a septic or entrance permit, the related final report is required before the final building inspection.[1] Save final approval with home records.

References

[1] Johnson County Residential Remodel Permit

[2] Johnson County Unincorporated Area

[3] Johnson County Building Permits

[4] Johnson County Building Permit Fee Chart

[5] City of Olathe Building Permit Information

[6] Kansas Attorney General Roofing Information for Consumers

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