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 service refers to rapid-response consulting where a team reviews your site feasibility, zoning potential, and design goals within a single day. You need this if you are in the early research phase and want immediate clarity on whether your property qualifies for an ADU. It cuts through the uncertainty of property development by giving you actionable information about setbacks and utility access right away, allowing you to move forward with confidence instead of waiting weeks for an initial assessment.
Frequently asked in Centennial
What is the process for obtaining an accessory dwelling unit permit in Centennial?
Are modular accessory dwelling units a good option in Centennial?
What is the accessory dwelling unit construction cost in Centennial?
What is an ADU company?
Who are the best accessory dwelling unit builders in Centennial?
What is an ADU permit?
Are there ADU services available 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, Littleton, Cherry Creek, Aurora Highlands, Greenwood Village — and every surrounding area.
Areas we serve
Browse by state, then city.
California (4)
All of California · Rialto · San Buenaventura (Ventura) · San Mateo · Vacaville
