Accessory dwelling unit permit — Denver, CO | AccessoryDwellingUnit Services

Looking for accessory dwelling unit permit in Denver, CO? Call AccessoryDwellingUnit Services 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 investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

An accessory dwelling unit permit is the official authorization from your local municipality required to build a backyard home. You need this to verify that your project follows height, setback, and safety regulations. Navigating this process is a mandatory step that keeps your property compliant and insurable. Exact pricing confirmed free on the call.

Frequently asked in Denver

What should I know about prefab ADUs in Denver?

Can I get financing for an accessory dwelling unit in Denver?

Accessory dwelling unit financing in Denver is available through various channels, including home equity loans, personal loans, and specialized construction loans. Licensed financial advisors can help you explore these options. They will assess your financial situation and guide you toward the best loan product for your ADU project. Understanding your financing options upfront is crucial for a smooth building experience in Denver. We can help you find the right resources.

What are the different types of ADU units for Denver homes?

What's involved in building a detached accessory dwelling unit in Denver?

What are the benefits of a backyard accessory dwelling unit in Denver?

A backyard accessory dwelling unit in Denver offers significant benefits, including increased property value, rental income potential, and extra living space for family. Licensed ADU specialists can help you design a unit that maximizes your backyard's usability while complying with Denver's zoning ordinances. They will ensure the construction is efficient and meets all local building standards. This adds valuable square footage and functionality to your home.

What is a modular accessory dwelling unit and how does it work in Denver?

What services are available for accessory dwelling units in Denver?

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: LoDo, Capitol Hill, Uptown, Cherry Creek, Highlands, Wash Park — and every surrounding area.