Accessory dwelling unit construction — 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
This involves the physical building process of your secondary unit, from site preparation and foundation pouring to framing and final finishes. You need professional construction services when you are ready to transition from blueprints to a finished, livable space. A skilled crew manages the structural integrity, plumbing, electrical, and HVAC installations, ensuring the entire building meets current safety standards and local building codes so you have a durable, high-quality home that is ready for move-in.
Frequently asked in Centennial
What is an accessory dwelling unit?
An accessory dwelling unit (ADU) is a secondary, independent living space on a single-family residential lot. It can be attached to or detached from the main house, offering flexibility for various needs. ADUs are valuable for accommodating family, generating rental income, or providing extra space. Understanding ADU potential is key for Centennial homeowners.
Are backyard accessory dwelling units a good option in Centennial?
What is the process for an ADU permit in Centennial?
What accessory dwelling unit homes are available in Centennial?
How do I get an ADU quote in Centennial?
Where can I find an ADU near me in Centennial?
What is the cost of an accessory dwelling unit 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, Cherry Creek, Greenwood Village (nearby), Aurora (nearby) — and every surrounding area.
Areas we serve
Browse by state, then city.
California (4)
All of California · Rialto · San Buenaventura (Ventura) · San Mateo · Vacaville