ADU · Denver
ADU Construction in Denver, CO
The highest long-term ROI of any addition.
Basement-finishing capital with radon and snow load baked into every plan.
ADUs are the fastest-growing residential category in 2026 for a reason: they pay for themselves. We match you with firms that build to code and to rent, detached, attached, or garage conversion, with the local ordinance know-how that makes or breaks the project.
Denver market
ADU in Denver: what the market looks like
Denver homeowners add square footage in the basement. Radon mitigation and egress are routine here, and snow-load engineering governs every addition.
Permits in Denver
Denver requires radon-resistant construction and snow-load calcs; complete submittals move through the queue faster, which is how the pros we match file.
Denver conditions
What adu projects in Denver actually take
Denver's lot rules, setbacks, and parking requirements decide what's buildable before any design starts, so the firms we match confirm zoning feasibility on your specific parcel first. A small footprint loses heat fast, so in Denver's mile-high sun, snow load, and high radon the envelope and mechanical sizing matter more per square foot than they would on the main house.
Our standard
What we require from adu construction firms in Denver
- Detached, attached, and garage-conversion ADUs
- Built to rent: separate metering and entrances
- Local ADU ordinance and setback expertise
- Income-property finish, built to rent well for years
ADU Construction in Denver, CO: your questions
What does adu construction cost in Denver, CO?
Denver homeowners add square footage in the basement. For adu construction specifically: Detached 400–800 sq ft: $100k–$250k. Garage conversions: $50k–$120k. Avg build ~$180k. National range: $50,000–$250,000. In Denver, CO, costs land toward the higher end of national ranges for urban markets. Use our cost estimator for a scope-adjusted figure.
How long does adu construction take in Denver, CO?
A typical adu construction project runs 4 to 8 months. In Denver, the permit timeline matters as much as the build window: Denver requires radon-resistant construction and snow-load calcs; complete submittals move through the queue faster, which is how the pros we match file. The firms we match commit the completion date in writing.
What permits does adu construction require in Denver, CO?
Denver requires radon-resistant construction and snow-load calcs; complete submittals move through the queue faster, which is how the pros we match file.
How do you match adu construction contractors in Denver, CO?
We vet remodeling firms in Denver before the first introduction: license verified, insurance confirmed, references called, complaint history reviewed. You describe the project, we send a short matched list of firms that work in Denver and specialize in adu construction. Free for homeowners.
Get matched for adu construction in Denver.
Tell us about your project. We hand you a short list of vetted local remodelers, free, and stay out of the rest. No phone-blasting, no pressure.