Wichita, KS Accessory Structures: ADU Permits (2026)

ADUs (called accessory dwelling units or secondary dwelling units in the Wichita-Sedgwick County UZC) are governed by Section IV.C of the zoning code. Permitted accessory dwellings are allowed in SF-5, SF-6, and SF-20 single-family districts as a permitted accessory use, provided the lot meets minimum area requirements and the ADU is subordinate in size to the primary dwelling. The Office of Central Inspection administers permits at 271 W 3rd St N, Suite 101. Required: building permit application, site plan showing setbacks, floor plan, structural drawings, and trade permits for plumbing/electrical/mechanical. Building must meet the 2018 International Residential Code as adopted by Wichita with local amendments. Setbacks typically follow underlying district rules (commonly 7 ft side, 25 ft rear). Detached ADUs are reviewed by Metropolitan Area Planning Department. Plan review averages 10-15 business days. Tornado-prone region: structures must meet IRC wind-load requirements for 115 mph wind speeds per ASCE 7. No statewide Kansas ADU statute exists — KSA 12-741 et seq. leaves zoning to local control.