Accessory dwelling unit contractor

Looking for accessory dwelling unit contractor in Denver, CO? Call AccessoryDwellingUnit Solutions 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 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 contractor oversees the daily building process, ensuring the foundation, framing, and finishes meet safety standards. You need one when you are ready to break ground and want a single point of contact to supervise tradespeople like electricians and plumbers. They act as the primary manager for your project, ensuring the work stays on track and adheres to the approved blueprints throughout the entire construction phase.

Frequently asked in Denver

What are the disadvantages of ADUs in Denver?

How much does an ADU cost in Colorado?

The cost for an ADU in Colorado varies significantly based on size, materials, and site complexity. Factors like foundation type, finishes, and whether you're building a detached unit or converting existing space all play a role. To get an accurate picture for your Denver property, it's best to get a personalized quote from the pros.

What are the rules for ADUs in Denver?

Denver's zoning code permits ADUs in most residential zones, with specific rules on maximum size, height, and lot coverage. You'll need to adhere to setback requirements and ensure adequate off-street parking. Understanding these regulations for your specific Denver address is crucial, and a professional can guide you.

Is an ADU allowed in Colorado?

Yes, ADUs are allowed in many municipalities across Colorado, including Denver. State legislation has encouraged their development. However, local ordinances dictate the exact size, placement, and design requirements. We can help you find out what's permitted on your property.

While Colorado may have different incentive programs, the focus here is on making ADU construction accessible. Understanding the financial aspects for your Denver project is important, and a quote can provide clarity on potential costs.

What are the rules for ADUs in Denver?

Denver has specific rules regarding ADUs, including limits on the number of bedrooms, maximum square footage, and restrictions on lot coverage. You'll also need to comply with parking requirements and ensure your ADU is compatible with the existing neighborhood character. A professional assessment will clarify these details for your Denver home.

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, Uptown, LoDo, Congress Park, Wash Park, Highlands — and every surrounding area.