Welcome to Colorado’s Premier ADU Builders

Reliable ADU Services in Denver, CO

Top-rated Denver ADU builder delivering turnkey design, permitting, and construction, maximizing property value with energy-efficient, code-compliant backyard homes tailored to your lot and lifestyle.

Looking for Reliable ADU Builders in Denver, CO?

Unlock your property’s potential with expert ADU construction in Denver, CO. Our team navigates zoning, permits, and design standards to deliver detached or attached units optimized for rental income, multigenerational living, or home offices. We engineer for snow loads, energy codes, and alley access, maximizing lots with efficient layouts and durable finishes. From feasibility to final inspection, expect pricing, streamlined timelines, and quality. Schedule a consultation to start building value.

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As part of our ADU construction services, our team can handle:

Detached ADU

Unlock your property’s potential with a detached ADU—an independent, code-compliant living space designed for flexibility and value. Ideal for rental income, multigenerational living, or a home office, detached ADUs enhance privacy while maximizing land use. Our team streamlines design, permitting, and construction, delivering energy-efficient builds tailored to your lot. Increase resale value, diversify income, and future-proof your home with thoughtful layouts, finishes, and seamless project management from concept to completion.

Attached ADU

An Attached ADU enhances your property with flexible, code-compliant living space that integrates seamlessly with your home’s footprint. Ideal for multigenerational living or rental income, it boosts property value while preserving privacy and comfort. Enjoy efficient design, shared utilities, and lower construction costs versus detached units. Our team manages design, permits, and build, delivering energy-smart finishes, accessibility and cohesion—so you expand livable square footage and capture long-term returns with confidence.

Garage Conversion ADU

Transform your underused garage into a high-value Accessory Dwelling Unit (ADU) that adds livable space, rental income, and resale appeal. Our expert team handles feasibility, permitting, design, and construction, delivering code-compliant, energy-efficient results on time and on budget. Enjoy a private suite for family, a home office, or a rental with finishes and systems. Maximize your property’s footprint without expanding outward—fast, affordable, and tailored to your lifestyle and local regulations.

Prefab and Modular ADU

Prefab and modular ADUs deliver high-quality living with faster timelines and predictable costs. Precision factory construction minimizes waste, weather delays, and disruption, while customizable finishes align with style and budget. Add rental income, flexibility, or a dedicated office—installed on your property in weeks, not months. Energy-efficient envelopes and systems reduce operating expenses. Finance-friendly and code-compliant, our turnkey process handles permits, site work, delivery, and installation, so you move in sooner.

Basement ADU

Transform your underutilized basement into an ADU that generates income and expands livable space. A basement ADU offers private, code-compliant housing for renters or multigenerational families, boosting property value and flexibility. Our team manages design, permits, egress, moisture control, soundproofing, and natural light strategies to meet local regulations and maximize comfort. Enjoy construction timelines, layouts, and durable finishes—delivering strong ROI, lower vacancy risk, and resilience for your real estate investment.

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What to consider when building an ADU in Colorado

When planning an ADU in Colorado, consider zoning and permitting requirements, lot coverage, setbacks, height, and parking. Evaluate budget, financing, utilities, and site access. Design for snow loads, wildfire resilience, energy efficiency, and privacy. Coordinate with HOAs, neighbors, and qualified designers or builders. Plan for rental strategy, insurance, and long-term maintenance. Verify codes and timelines with local authorities to ensure a compliant, value-adding project.

How much does it cost to build an ADU in Colorado?

Thinking about an ADU in Colorado? Budget roughly: studio (300–400 sf) $130k–$200k; 1‑bed (450–650 sf) $180k–$300k; 2‑bed (700–1,000 sf) $280k–$500k. Costs vary with site work, utility capacity, foundation, local fees, finishes, and prefab vs. custom. Typical timelines: design/permits 2–4 months; construction—studio 3–4 months, 1‑bed 4–6, 2‑bed 6–8. Get precise estimates after a site review.

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FAQs

Common Questions About ADUs

What are ADUS?

Accessory Dwelling Units (ADUs) are small, self-contained homes built on the same lot as a primary residence, enabling flexible housing, rental income, and multigenerational living through backyard cottages, garage conversions, or basement apartments.

Are ADUs legal in my area?

ADU legality depends on your local and state zoning laws. Check your city’s municipal code, planning department website, and state ADU statutes, or call the local planning office for parcel-specific guidance and permitting requirements.

How much does it cost to build an ADU?

Building an ADU typically costs $100,000–$400,000, or $250–$500 per square foot, varying by size, type (detached, attached, conversion), region, site conditions, permits, utility upgrades, design complexity, finish level, and local labor rates.

Can I rent out my ADU?

Yes, in many areas you can rent out an ADU, but rules vary. Confirm zoning, owner‑occupancy requirements, permits, short‑term rental bans, HOA rules, and comply with building, safety, and landlord‑tenant laws.

How long does it take to build an ADU?

Building an ADU typically takes 6–12 months from start to finish: about 2–4 months for design and permits, plus 4–8 months for construction, varying with site conditions, customization, contractor availability, and local approvals.

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Colorado’s Premier ADU Builders | ADU Construction in Denver, CO

Choose Denver, CO’s trusted ADU builder for compliant design, permitting, construction, and streamlined management—delivering quality, value, and on-time accessory dwelling units across the metro.

Phone

(303) 857-5592