Adu cost — Aurora, CO | AccessoryDwellingUnit Services

Looking for adu cost in Aurora, CO? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Aurora 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

The final cost of your ADU is influenced by factors like utility trenching, site excavation, and the complexity of the architectural design. Larger units or those requiring extensive foundation work will naturally cost more than simple interior conversions or small studios. We help you prioritize your budget items to get the most value out of your square footage. Exact pricing confirmed free on the call.

Frequently asked in Aurora

What are the disadvantages of ADUs in Aurora?

Potential disadvantages include the upfront construction costs and navigating Aurora's permitting process, which can involve specific review stages. You'll also need to consider zoning restrictions on size and placement, as well as potential impacts on your existing property's yard and privacy.

How much does an ADU cost in Colorado?

ADU costs in Colorado can vary widely based on location, size, and complexity. Factors like foundation requirements, utility extensions, and the quality of finishes will heavily influence the price. For an accurate ADU cost in Aurora, a professional estimate is your best bet.

What are the rules for ADUs in Colorado?

Colorado ADU rules are determined at the local city level. Aurora has specific ordinances that dictate requirements for ADUs, including aspects like lot size, setbacks from property lines, and maximum square footage. It's essential to consult the City of Aurora's planning and zoning department for current regulations.

Is an ADU allowed in Aurora?

Yes, Accessory Dwelling Units are allowed in Aurora, Colorado, provided they comply with the city's zoning and building codes. Aurora has established regulations that govern the size, placement, and use of ADUs to ensure they integrate well with existing neighborhoods. Proper planning is key.

What are the rules for ADUs in Colorado?

ADU regulations in Colorado are primarily managed by individual municipalities. This means rules can differ significantly between cities. Generally, you'll find requirements related to minimum lot size, maximum height, parking provisions, and how the ADU must be situated on the property.

Are there grants for ADUs in Colorado?

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

All cities in Colorado →

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

Service area details

395,052residents

2,423per sq mile

8ZIP codes served

Serving all of Aurora — population 395,052; about 2,423 residents per square mile across 163.0 sq mi. ZIP codes covered include 80010, 80011, 80012, 80013, 80014, 80015, 80016, 80017.

Neighborhoods served in Aurora: Saddle Rock, Aurora Hills, South Aurora, North Aurora, Green Valley Ranch, Aurora Highlands — and every surrounding area.