Adding an ADU in Centennial starts with understanding how your property can support a new or converted living space. Our team works with homeowners to plan and build accessory dwelling units that fit both layout and long-term use. We develop backyard ADUs, garage conversion ADUs, and attached dwelling units designed to make the most of available space while meeting local requirements. From early planning through full ADU construction, every step is structured to keep the project clear, efficient, and aligned with your goals. Whether you’re building a new ADU or converting an existing area into a functional dwelling unit, the focus is always on usability, smart design, and long-term value.
Expand your home with an attached ADU, designed for seamless integration and efficient use of existing space.
Custom backyard ADUs designed as fully independent living spaces, built to match your property and long-term use.
Full-service ADU construction including planning, design, and building an accessory dwelling unit tailored to your needs.
Convert your garage into a functional accessory dwelling unit, including full garage to ADU conversion
A successful ADU project depends on how well each phase is handled — from planning and layout to final construction. Our team focuses specifically on building accessory dwelling units that meet structural requirements while making practical use of the space. We work with Centennial homeowners to design ADUs that fit the property, whether it’s a detached unit, garage conversion, or integrated addition. With a clear process and attention to detail, each ADU is built to function properly from day one, with no guesswork throughout the project.
Our ADU builds in Centennial include a mix of detached ADUs, garage conversions, and fully custom accessory dwelling units designed for different property setups. Each ADU is planned around how the space will actually be used whether it’s a small ADU, a one bedroom unit, or a separate living area built for flexibility. We focus on creating ADUs that are efficient, functional, and designed to fit naturally within the property while maximizing usable space.
FAQ
Building an ADU includes planning, design, permits, and full construction. Each accessory dwelling unit is developed based on property layout, utilities, and intended use, whether it’s a detached ADU or a converted space.
In many cases, a backyard ADU can be built if the property meets zoning and space requirements. We evaluate your lot and design an ADU that fits within local guidelines while maximizing usable space.
Yes, a garage conversion to ADU is one of the most efficient ways to create a separate dwelling unit. It allows you to use existing structure while converting the space into a functional living area.
You can build detached ADUs, attached ADUs, or convert existing areas into a dwelling unit. Each type of ADU is designed based on property conditions and how the space will be used.
The timeline depends on design, approvals, and construction scope. We manage the entire process of building an ADU to ensure each phase is completed efficiently and without delays.
An ADU can be used as a rental unit, guest house, or private living space. Many homeowners build an accessory dwelling unit to increase property value and create additional usable space.
Centennial properties offer a range of opportunities for adding an ADU, whether through new construction or converting existing space into a separate dwelling unit. We design and build accessory dwelling units based on property layout, access, and how the space will be used long term — from backyard ADUs to garage conversion projects. Each ADU is planned to function independently while still integrating with the main home, creating a practical and efficient living solution. Our focus is on building ADUs that make sense for the property, maximize usable space, and support flexible living needs.
Nearby Areas We Serve
Littleton
Castle Rock
Englewood
Greenwood Village
Denver
Lone Tree
Plan Your Accessory Dwelling Unit with a Clear, Structured Approach Book a consultation to discuss your backyard ADU, garage conversion ADU, or custom accessory dwelling unit. Tell us about your project, and we’ll provide a clear plan for design, permits, and construction.
+1 (303) 704-8235