Accessory Structures in Overland Park, KS (2026)
8 verified accessory structures rules for Overland Park, Kansas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Overland Park allows accessory dwelling units with an owner-occupancy requirement. The property owner must live in either the primary residence or the ADU. Additional parking spaces are typically required for the ADU.
Overland Park ADU / Accessory Dwelling Rules
Some RestrictionsADU Permits
Overland Park regulates accessory dwelling units under the Unified Development Ordinance (Title 18 of the Overland Park Municipal Code), administered by Planning + Development Services. An Accessory Unit is defined as a building or addition for living purposes with a maximum footprint of 650 square feet (or the principal-structure footprint for English Basement types). Building permits are issued under the City-adopted 2018 IBC/IRC. Kansas has no statewide ADU statute — KSA 12-741 et seq. delegates zoning to home-rule cities.
Overland Park ADU Permits (UDO Title 18 + 2018 IRC)
Some RestrictionsADU Impact Fees
Overland Park does not impose traditional municipal impact fees on residential ADUs. Costs are limited to building permit fees, plan-review fees, separate trade permits, and connection fees if a new water or sewer service is required (WaterOne for water, Johnson County Wastewater for sewer). Kansas law does not authorize school impact fees on residential development. Johnson County Appraiser will reassess the property after construction.
Overland Park ADU Impact Fees (No Municipal Impact Fees — Permit & Utility Fees Only)
Few RestrictionsADU Owner Occupancy
Overland Park's Unified Development Ordinance (Title 18 OPMC) frames the ADU as a subordinate accessory use to the principal single-family dwelling. 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 Overland Park subdivisions may add stricter rules under KSA 58-3801 et seq. (Kansas Uniform Common Interest Owners Bill of Rights Act).
Overland Park ADU Owner-Occupancy (UDO Accessory Use Implies Occupancy Linkage)
Some RestrictionsADU Rental Restrictions
Overland Park requires a Rental License for all rental properties (including ADUs) — $120 per building, valid two years. Long-term rental of ADUs is allowed subject to the UDO's accessory-use and owner-occupancy framework. Short-term rentals (under 28-30 days) are subject to a 9% local transient guest tax plus state-level lodging/sales tax. Kansas has no rent control. Tenancies fall under the Kansas Residential Landlord and Tenant Act (KSA 58-2540 et seq.).
Overland Park ADU Rental Restrictions (Rental License Required; STR Subject to 9% Transient Guest Tax)
Some RestrictionsShed Rules
Overland Park regulates sheds and accessory buildings through zoning setbacks and size requirements. Small sheds under 120 square feet typically do not require a building permit but must meet setback and height limits.
Overland Park Shed & Outbuilding Rules
Some RestrictionsGarage Conversions
Overland Park allows garage conversions to living space with a building permit. The converted space must meet residential building code, and minimum off-street parking requirements must still be met.
Overland Park Garage Conversion Rules
Some RestrictionsCarport Rules
Under the Overland Park UDO, one-family and two-family lots may have one detached garage or carport, which must meet the same setbacks as the main structure. Detached carports are limited to the rear yard and must stay 3 ft from interior lot lines and 20 ft from any street right-of-way.
accessory-structures/carport-rules
Some RestrictionsLooking for Johnson County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Overland Park city rules.
Accessory Structures in Johnson County →