Wyandotte County, KS Building Safety: Building Permits (2026)

Section 123 (codified at Unified Government Code § 8-25) requires any owner or authorized agent to file an application with the building official and obtain a permit before starting the listed work, and it separately flags that a hazardous-materials permit may be required first if the fire chief determines the project involves regulated quantities of hazardous materials. Section 125 requires the application to be submitted in writing on a form the building official furnishes, and Section 126 gives the building official authority to reject an application in writing, stating the reasons, if the plans do not conform to code.

Section 127 deems an unpursued application abandoned 180 days after filing, though the building official can grant 90-day extensions for good cause. Once issued, a permit itself expires under Section 129 if work does not start within 180 days or is suspended for 180 days, with the building official able to grant additional 180-day extensions at half the original permit fee. Section 124 exempts a specific list of minor work from the permit requirement altogether, including four-foot-or-shorter retaining walls, six-foot-or-shorter fences, and one-story detached sheds of 120 square feet or less.

Fees are set under the unified government fee schedule referenced in Sections 143 through 146, and Section 147 imposes an additional fee equal to the permit cost on anyone who starts work before the permit issues.