ADU rules in Colorado Springs, CO β also called accessory dwelling unit regulations or granny flat ordinances β cover setbacks, owner-occupancy, parking, and permit requirements.
Colorado Springs now allows one ADU on any lot with a single-family detached home citywide (except WUI wildfire zones) following Ordinance 25-45 (April 8, 2025) implementing state HB 24-1152. ADUs are limited to 1,250 sq ft or 50% of primary home, whichever is less.
Ordinance 25-45 (effective April 2025) replaced prior ADU regulations. ADUs are now allowed in all single-family zones (R-E, R-1, R-2, etc.) except high wildfire risk (WUI) areas where attached/interior ADUs only are permitted. Types: attached (connected to home), interior/basement, or detached (separate structure). Maximum size: 50% of primary residence's square footage or 1,250 sq ft, whichever is less. Detached ADUs: 1-story maximum (16 feet), except above-garage ADUs up to 25 feet. Setbacks: 5 feet rear and side for detached ADUs. One dedicated off-street parking space required per ADU. ADUs cannot simultaneously be used as STRs. Owner-occupancy is no longer required (per HB 24-1152). HOAs cannot ban ADUs per state law. Permit through PPRBD; public notice poster required for 14 days.
Unpermitted ADUs subject to stop-work orders, fines, and required demolition or bring-up-to-code.
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