Denver ADU Builders
Denver is Colorado's ADU hub, with a dense cluster of dedicated builders offering detached, garage, and basement conversions. Many designs are marketed as compliant with the state's HB24-1152 ADU framework.
7 builders based in the Denver area
Cost basics
Detached ADU projects commonly run $150,000–$400,000+ depending on size and finishes; garage conversions cost less. Builders focused on the Denver area can give project-specific pricing — several publish real example budgets on their profiles.
Permit basics
State law requires by-right approval of compliant ADUs in most cases, but local rules (setbacks, height, parking, historic districts) vary. Confirm requirements with your city's planning department before finalizing a design — or ask a local design-build firm, which handles permitting as part of the project.