Rocky Mountain ADUs is a family-owned and operated ADU builder based in Denver, Colorado. Founded by a 5th-generation Coloradan, this dedicated team has grown from a personal family project into one of the region's most trusted accessory dwelling unit builders. Their mission is simple: to make ADUs easy, beautiful, and attainable for Colorado homeowners — bringing families closer together while unlocking long-term property value.
From the very first conversation to long after move-in day, Rocky Mountain ADUs guides clients through every step of the process. It begins with a free property analysis, where they assess whether the land is suitable for an ADU, discuss the homeowner's vision, and determine project feasibility. From there, their team works closely with clients to explore design options, evaluate the site, and align on key details that fit the client's needs and lifestyle.
A Streamlined Process from Design to Completion
Once a design is refined, Rocky Mountain ADUs formalizes the project with a detailed contract and clear plans. Clients finalize their selections for materials, finishes, and features, and confirm the budget before construction begins. Throughout the build, their experienced team maintains open communication and provides regular progress updates, ensuring quality at every stage.
Upon completion, they walk clients through their new space to ensure full satisfaction. After move-in, they continue to offer ongoing support and warranties, with regular check-ins and maintenance assistance to ensure the ADU continues to meet the homeowner's needs for years to come.
ADU Floor Plans Built for Every Lifestyle
Rocky Mountain ADUs offers a range of thoughtfully designed floor plans to suit a variety of living situations across Denver and the broader Colorado area:
- Studio ADUs — Starting at 240 sq ft, these compact, open-concept units are ideal for singles, couples, guest accommodations, or rental units.
- 1-Bedroom ADUs — Starting at 360 sq ft, these units offer a separate bedroom, full kitchen, bathroom, and living area — perfect for downsizing or creating a guest house.
- 2-Bedroom ADUs — Starting at 535 sq ft, these models are well-suited for small families, shared living, or spacious guest accommodations.
- 3-Bedroom ADUs — Beginning at 1,000 sq ft, these larger designs are a great fit for primary residences, growing families, or income-producing rentals.
- Loft ADUs — Starting at 448 sq ft, these modern designs make clever use of vertical space with open-concept main floors and elevated loft areas.
As a full-service ADU contractor, Rocky Mountain ADUs handles design, permitting, and construction — so homeowners can focus on the people who will enjoy the space. Their granny flat builder expertise and backyard cottage builder capabilities make them a go-to resource for Colorado families looking to add functional, stylish living space to their property.
A Team Built on Craftsmanship and Community
The Rocky Mountain ADUs team brings together decades of combined experience in construction, project management, and customer success. Their general contractor oversees every build with precision, drawing on over 20 years of Front Range construction experience. Their project manager ensures each build runs on time and within budget, while their leadership team keeps operations running smoothly and clients well-supported throughout the journey.
Rocky Mountain ADUs is guided by core values including integrity, craftsmanship, sustainability, innovation, and community. They are committed to minimizing environmental impact through thoughtful design and efficient building practices, while delivering ADUs that are functional, durable, and beautiful. Whether the goal is multi-generational living, rental income, or simply creating more space for family, Rocky Mountain ADUs approaches every project with care — treating each client like family.