Modular accessory dwelling unit — Centennial, CO
Last updated: September 24, 2026
What affects the price
Building an ADU involves several moving parts that shape your total budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.
About this service
A modular ADU is built in a factory and then transported to your property to be assembled on a foundation. You should consider this if you want a faster construction timeline and less disruption in your backyard. Because the units are built off-site, they are often cost-effective and efficient. We help you choose the right model and ensure the site is ready for delivery. Exact pricing confirmed free on the call.
Frequently asked in Centennial
What is involved in accessory dwelling unit construction in Centennial?
Are backyard accessory dwelling units a good option in Centennial?
What is the cost to build an accessory dwelling unit in Centennial?
Where can I find ADU builders near me in Centennial?
What does 'accessory dwelling unit' mean in Centennial?
In Centennial, an accessory dwelling unit (ADU) is a secondary housing unit on a single-family residential lot. It can be attached to the main home or be a separate structure. ADUs typically include independent living facilities, such as a kitchen, bathroom, and sleeping area. They are a valuable way to add flexible living space to your property.
Can I get an ADU quote for my property in Centennial?
What are accessory dwelling unit homes like in Centennial?
Also serving nearby: Aurora · Denver · Lakewood · Westminster · Arvada
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Centennial — population 106,883; about 3,544 residents per square mile across 30.2 sq mi.
Neighborhoods served in Centennial: Southglenn, Dove Valley, The Streets of Southglenn, Heritage Village, Pine Tree Meadows — and every surrounding area.
Areas we serve
Browse by state, then city.
California (4)
All of California · Rialto · San Buenaventura (Ventura) · San Mateo · Vacaville