ADU Construction in Castle Rock, CO

Build an Additional Dwelling Unit That Adds Value and Flexibility

Accessory Dwelling Units (ADUs) are a smart solution for homeowners looking to expand their property’s functionality. Whether you need space for extended family, a private guest suite, or a rental opportunity like an Airbnb, ADUs provide independent living areas right on your existing lot.

At Prestige Contractors, Inc., we design and build high-quality ADUs that are code-compliant, stylish, and tailored to your property. With 20+ years of construction experience in Castle Rock and Douglas County, we know how to deliver ADUs that look and feel like they’ve always been part of your home.

What is an ADU?

An Accessory Dwelling Unit (ADU) is a self-contained residential unit that sits on the same property as a single-family home. It may be detached, attached, or built above a garage. ADUs include essentials like a kitchen, bathroom, living area, and sleeping space — making them perfect for:

 

  • Rental income (Airbnb, long-term tenants)

  • Guest houses or in-law suites

  • Home offices or studios

  • Multigenerational living

  • Aging-in-place options

 

We work closely with you to design an ADU that fits your goals, budget, and lot requirements.

Types of ADUs We Build

  • Detached Units: Freestanding buildings placed in the backyard or on available land.

  • Garage Conversions: Turn unused garage space into a fully livable residence.

  • Above-Garage ADUs: Build upward for space-saving solutions.

  • Attached Additions: Expand your existing home with a private living suite.

Why Build an ADU with Prestige?

  • 20+ years of experience with complex residential builds

  • Full-service design/build process — we handle everything

  • Knowledge of Castle Rock zoning and Douglas County building codes

  • Custom solutions tailored to your property and lifestyle

  • Trusted, licensed, and local remodeling experts

ADU Construction — FAQs

Yes. ADUs require permits and zoning approval. We handle all documentation and submissions for you.

Send Us a Message!

Contact Prestige Contractors, Inc. today for a free in-home consultation and estimate.

Start Building Your ADU

Let’s talk about how an Accessory Dwelling Unit can bring more flexibility, comfort, and income potential to your property. Get a free consultation and let’s explore your options.

Our Process

Our ADU Construction Process

We meet on-site to discuss your goals, zoning regulations, and property conditions. Then we create a full design package (floorplan, layout, renderings) through our PSA agreement.

 

Once you approve the design, we handle all permit applications and code checks. A 10% retainer secures your project on our schedule.

From foundation to finish, we manage all aspects of the build with clear communication and daily updates through your online client portal.

Our Gallery

Recent ADU Projects

Testimonials

What People’s Say

Awards & Affiliations

Recognized for Excellence

We’re proud to be affiliated with the industry’s most respected organizations and honored by our community.

Charitable Partners

Giving Back to Our Community !

We actively support local charities and missions that make a difference.

Get a Fast Estimate for Your Remodel

Use our smart estimator tool to get a quick quote for your kitchen or bathroom project — powered by Demand IQ.

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