Adu services — Denver, CO | AccessoryDwellingUnit Pros

Looking for adu services in Denver, CO? Call AccessoryDwellingUnit Pros for a contact a provider — no obligation. Licensed adu builders serve Denver and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.

About this service

ADU services simplify the complex process of turning unused yard space into a functional, independent living unit. This involves architectural drafting, structural engineering, and managing municipal building departments to secure necessary approvals. You should look for these services when you are ready to expand your home’s footprint for rental income, guest accommodations, or multi-generational living. Engaging experts ensures the project stays compliant with state codes while meeting your specific design goals for a secondary dwelling.

Frequently asked in Denver

What are the disadvantages of ADUs in Denver?

Disadvantages can include upfront construction costs and potential impacts on existing utilities like water and sewer lines in Denver neighborhoods. You'll also need to consider permitting and zoning compliance, which can take time. It's important to weigh these against the benefits of increased property value and rental income potential.

How much does an ADU cost in Colorado?

What are the rules for ADUs in Denver?

Can I build an ADU in any Denver neighborhood?

Generally, ADUs are permitted in most residential zones across Denver, but there can be specific neighborhood restrictions or historic district considerations. It's always best to confirm the rules for your exact Denver address. We can help you get that clarity.

What is the process for getting an ADU permit in Denver?

The permit process involves submitting detailed plans to the Denver planning department for review and approval. This usually includes architectural drawings, site plans, and engineering reports. Working with experienced pros can streamline this process.

Are there grants for ADUs in Colorado?

While specific grants can change, it's worth investigating available programs that might offer financial assistance for ADU construction in Colorado. The pros can often advise on potential funding opportunities relevant to Denver projects.

Also serving nearby: Aurora · Thornton · Centennial · Westminster · Lakewood

All cities in Colorado →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

716,577residents

4,681per sq mile

8ZIP codes served

Serving all of Denver — population 716,577; about 4,681 residents per square mile across 153.1 sq mi. ZIP codes covered include 80201, 80202, 80203, 80204, 80205, 80206, 80207, 80208.

Neighborhoods served in Denver: Capitol Hill, LoDo, Cherry Creek, Highlands, Wash Park — and every surrounding area.