Welcome to Colorado’s Premier ADU Builders

Reliable ADU Services in Centennial, CO

Centennial’s top-rated ADU builder delivering turnkey, code-compliant backyard homes with custom design, transparent pricing, and on-time construction—maximizing property value and livable space, stress-free.

Looking for Reliable ADU Builders in Centennial, CO?

Unlock your property’s potential with expert ADU construction in Centennial, CO. Our team delivers custom, code-compliant accessory dwelling units for rental income, multigenerational living, or a dedicated workspace. We handle design, permits, and construction, ensuring a streamlined, on-time build that complements your primary residence. From energy-efficient materials to layouts that maximize space, we focus on durability and appeal. Start your project with a transparent estimate and discover flexible, high-return housing.

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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 that delivers flexibility, privacy, and real value. Ideal for multigenerational living, rental income, or a home office, our turnkey solutions streamline design, permitting, and construction. Energy‑efficient materials, smart layouts, and finishes maximize comfort and ROI. Customize footprints and features to match your lot and lifestyle. Build faster, build smarter, and elevate your home’s functionality with a Detached ADU that pays lasting dividends.

Attached ADU

An Attached ADU elevates your property with flexible, revenue-generating living space seamlessly integrated into your home. Ideal for rental income, multigenerational living, or a private office, it maximizes square footage while sharing utilities for cost efficiency. Designed to meet local codes and enhance curb appeal, an Attached ADU can boost resale value, support aging-in-place, and deliver energy savings. Choose our expert team for turnkey design, permits, and construction with quality.

Garage Conversion ADU

Transform your underused garage into a high-performing ADU that adds value, flexibility, and income. Our expert team manages design, permits, and construction, delivering code-compliant, energy-efficient space for rentals, multigenerational living, or a premium home office. Enjoy a streamlined process, transparent pricing, and swift timelines without sacrificing quality. From seismic upgrades to custom finishes, we handle every detail, maximizing square footage and ROI while enhancing curb appeal and long-term property resilience.

Prefab and Modular ADU

Discover the efficiency of prefab and modular ADUs—flexible solutions that expand living space faster and affordably. Factory-built components ensure precision, quality control, and reduced waste, while streamlined permitting and installation minimize disruption to your property. Customize layouts, finishes, and energy-efficient systems to create a rental unit, home office, or multigenerational suite. With predictable timelines and pricing, modular ADUs deliver lasting value, boosting property income and versatility with modern, code-compliant design.

Basement ADU

Transform your underutilized basement into a high-performing ADU that elevates property value and flexibility. Our team designs code-compliant layouts with proper egress, soundproofing, and natural light strategies, creating comfortable, independent living spaces. We handle zoning reviews, permits, waterproofing, and utility upgrades, delivering a turnkey solution ready for rental income or multigenerational living. From separate entrances to smart finishes, we optimize every square foot for safety, comfort, and long-term ROI today.

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What to consider when building an ADU in Colorado

Planning an ADU in Colorado? Consider zoning compatibility, lot size, setbacks, height limits, and owner-occupancy rules; confirm permit pathways and utility connections early. Evaluate budget, financing, and potential rental returns. Design for climate, including snow loads, insulation, and energy efficiency. Assess access, parking, and privacy. Choose an experienced designer-builder, align timelines, and verify HOA requirements. Professional guidance helps streamline approvals and deliver a compliant, high-quality, value-adding ADU.

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

Considering an ADU in Colorado? Budget roughly: studio/400-600 sf $150k-$250k (6-9 months), 1-bed/600-800 sf $200k-$325k (8-12 months), 2-bed/800-1,000 sf $275k-$450k (10-14 months). Costs vary with site access, foundation and utility upgrades, local permits/impact fees, design complexity, finish level, and prefab vs stick-built. We streamline approvals, accurate bids, and schedule certainty to maximize value and speed from concept to keys.

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FAQs

Common Questions About ADUs

What are ADUS?

Accessory Dwelling Units (ADUs) are small, independent residential units on the same lot as a primary home, such as backyard cottages or garage conversions, offering flexible housing for family, rental income, or aging in place.

Are ADUs legal in my area?

ADU legality depends on your state and local zoning rules. Check your city’s municipal code, zoning map, and state ADU laws, or contact the planning department. Some states mandate allowances, but local standards still apply.

How much does it cost to build an ADU?

Building an ADU typically costs $100,000–$400,000, or roughly $200–$500 per square foot, depending on size, type, site conditions, labor rates, finishes, utilities, permits, impact fees, design complexity, local codes, and structural upgrades.

Can I rent out my ADU?

Yes, you can often rent out an ADU, but rules vary. Check local zoning, permits, and owner-occupancy requirements; short‑term rentals may be restricted. Use a compliant lease, report rental income, and update insurance.

How long does it take to build an ADU?

An ADU typically takes 6–12 months from concept to completion, including 1–3 months design, 2–4 months permitting, and 3–6 months construction, varying with jurisdiction, site conditions, size, utilities, financing, and prefabrication versus stick-built.

Book a Free Consultation

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

Trusted Centennial, CO ADU builder delivering compliant design-build services, seamless permitting, and quality craftsmanship on time and budget—call for a consultation tailored to your property.

Phone

(303) 857-5592