This Denver ADU project was designed and built within a landmark context and presented unique site challenges, including extremely sandy soil conditions. Through a coordinated design-build approach, Prenvalley Builders engineered a durable foundation solution and carefully executed construction on a tight urban lot. The result is a thoughtfully integrated accessory dwelling unit built for long-term performance and compatibility with its surroundings.

This beautiful Sunnyside ADU was completed in the summer of 2024. It features a 2.5 car garage, 2 bedrooms, 1 bathroom, a kitchen/ living area and vaulted ceilings/ dormers that provide a lot of character in and out of the structure.

This custom two-story ADU in Denver was designed and built in partnership with the Denver Housing Authority as part of the West Denver Renaissance Collaborative. Built above a garage with exterior stair access, the project delivers durable, high-performance housing while demonstrating how thoughtful ADU design can support neighborhood density, long-term livability, and citywide housing goals.

This garage ADU in Denver was built on a narrow urban lot with significant site constraints, requiring careful planning and execution throughout construction. Prenvalley Builders delivered a two-car garage with a studio, one-bedroom apartment, rooftop deck, and solar array—maximizing livability and long-term value despite challenging logistics.

This design-build ADU showcases how thoughtful planning can deliver a large, flexible living space within Denver’s urban zoning constraints. With a two-story layout, integrated garage, and adaptable work areas, the project balances square footage, performance, and cost-conscious decision-making. It stands as one of Prenvalley Builders’ largest ADUs to date, designed to support long-term use and evolving needs.

This compact Denver ADU was constructed by Prenvalley Builders as an efficient, small-footprint backyard residence. Built on a helical pier foundation to reduce site impact and control costs, the project required thoughtful sequencing, precision framing, and careful coordination to maximize usable space. The result is a durable, well-built accessory dwelling unit designed to perform efficiently within a tight urban lot.

This cost-effective garage ADU in northwest Denver was designed and built to create flexible living space and long-term rental potential. Prenvalley Builders delivered an efficient layout with durable, rental-ready finishes, maximizing comfort and functionality within a compact footprint.

A thoughtfully designed detached ADU built to provide comfortable, independent living within a compact footprint. This Denver backyard ADU showcases Prenvalley Builders’ ability to deliver efficient planning, durable construction, and a fully functional home that supports everyday living while fitting seamlessly into the existing property.

This Denver basement renovation transformed an underutilized lower level of a 1920s home into a fully functional accessory dwelling unit. Prenvalley Builders navigated the challenges of aging concrete walls, settled framing, and uneven floors to deliver a code-compliant living space that includes a kitchenette, full bathroom, living area, and private bedroom. Careful coordination and precise execution allowed the team to modernize the structure while preserving the integrity of the existing home. The result is a durable, comfortable lower-level ADU designed to support long-term use and added property value.