Affordable accessory dwelling unit — Denver, CO

Looking for affordable accessory dwelling unit 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

Affordability in backyard homes often comes down to choosing efficient designs and standardized floor plans. By selecting a model that fits your existing utility footprint and requires minimal site excavation, you can keep your budget manageable. Exact pricing confirmed free on the call.

Frequently asked in Denver

What are the disadvantages of ADUs in Denver?

Disadvantages in Denver can include initial construction costs, potential impacts on existing utility services, and navigating specific city building codes. You'll also want to consider how it might affect your property taxes. Getting a quote helps clarify these potential downsides.

How much does an ADU cost in Colorado?

What are the rules for ADUs in Denver?

Denver has specific regulations regarding ADU size, placement, and setbacks from property lines. Understanding these rules is crucial before you start. The pros can explain these requirements and how they apply to your lot.

Is an ADU allowed in Colorado?

Yes, Colorado has made it easier for homeowners to build ADUs. Denver, in particular, has updated its codes to encourage their development. We can help you confirm your property's eligibility.

What is an affordable accessory dwelling unit?

An affordable ADU is one where the construction costs are managed effectively, and the resulting unit provides a cost-effective housing solution. Focusing on efficient design and smart material choices helps. Call for a quote to see how affordable yours can be.

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, Uptown, Five Points, Cheesman Park, Congress Park — and every surrounding area.