Accessory Structures in Topeka, KS (2026)
8 verified accessory structures rules for Topeka, Kansas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Topeka's zoning code allows accessory dwelling units in certain residential zones. ADUs must comply with setback, size, and lot coverage requirements.
Topeka ADU / Accessory Dwelling Rules
Some RestrictionsADU Permits
Topeka regulates accessory dwelling units under Chapter 18 (Zoning) of the Topeka Code of Ordinances. ADUs are reviewed by the Planning and Development Services Department and must meet underlying single-family district standards for setbacks, lot coverage, and height. Building permits are issued by Development Services under the Kansas-adopted 2018 International Residential Code. Kansas has no statewide ADU statute — KSA 12-741 et seq. delegates zoning to home-rule cities.
Topeka ADU Permits (Code Chapter 18 Zoning + Building Permits)
Some RestrictionsADU Impact Fees
Topeka does not impose traditional municipal impact fees on residential ADUs. Costs are limited to building permit fees, plan-review fees, separate trade permits, and Topeka Water / sewer connection charges if a new service is required. Kansas law (KSA Chapter 12) does not authorize school impact fees on residential development.
Topeka ADU Impact Fees (No Municipal Impact Fees — Permit & Utility Fees Only)
Few RestrictionsADU Owner Occupancy
Topeka's Chapter 18 (Zoning) frames the ADU as a subordinate accessory use to the principal single-family dwelling. While Topeka has not enacted an explicit statewide-style owner-occupancy preemption, the accessory-use framework typically requires the owner to occupy either the primary dwelling or the ADU, verified at certificate of occupancy. HOA covenants in newer Topeka subdivisions may add stricter rules under KSA 58-3801 et seq.
Topeka ADU Owner-Occupancy (Subordinate Accessory Use Implies Occupancy Linkage)
Some RestrictionsADU Rental Restrictions
Topeka allows long-term rental of ADUs subject to Chapter 18's accessory-use and owner-occupancy framework. Short-term rentals (under 28-30 days) are subject to Kansas Transient Guest Tax under KSA 12-1696 et seq. and to local transient guest tax administered by the City. Kansas has no statewide STR preemption and no rent control. Tenancies fall under the Kansas Residential Landlord and Tenant Act (KSA 58-2540 et seq.).
Topeka ADU Rental Restrictions (Long-Term Allowed; STR Subject to Transient Guest Tax)
Some RestrictionsShed Rules
Topeka regulates sheds and accessory structures. Small sheds under 120 square feet may not require a building permit but must meet setback requirements.
Topeka Shed & Outbuilding Rules
Some RestrictionsGarage Conversions
Garage conversions in Topeka require a building permit and must meet building code standards for habitable space. Required parking must be maintained.
Topeka Garage Conversion Rules
Some RestrictionsCarport Rules
Topeka regulates carports as accessory structures under TMC 18.60.020 (Density/Dimensional Standards). Detached carports cannot sit within a required front yard or beyond the front face of the principal structure and must observe a 20-foot setback from all street rights-of-way. An unenclosed carport less than six feet from the principal building may extend to within three feet of a side property line, and accessory-building height is capped at 15 feet for a one-story principal home or 20 feet when the principal building is two or more stories.