Accessory dwelling unit companies

Looking for accessory dwelling unit companies in Scottsdale, AZ? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Scottsdale 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

These companies provide comprehensive support for homeowners, often pairing design experts with construction crews to handle the entire project under one roof. They are helpful when you want to avoid hiring separate architects and builders. You should look into these companies when you want a streamlined experience and a single point of accountability for your backyard project from start to finish.

Frequently asked in Scottsdale

What are the disadvantages of ADUs in Scottsdale?

Some potential downsides include the initial investment in construction and the time it takes to navigate permits and build. You'll also want to consider how an ADU might affect your property taxes and insurance. A local pro can help you weigh these factors.

How much does an ADU cost in Arizona?

The cost for an ADU in Arizona can vary significantly based on size, design complexity, and materials chosen for your Scottsdale project. Site conditions and the type of foundation required also play a role. A free, personalized quote from a local expert will provide the most accurate pricing.

What are the rules for ADUs in Arizona?

Is an ADU allowed in Scottsdale?

Yes, Accessory Dwelling Units are permitted in Scottsdale, provided they adhere to the city's specific zoning and building codes. These regulations are designed to ensure ADUs are a good fit for the community. A local specialist can clarify all requirements.

What are the rules for ADU in Arizona?

What is the process for building an ADU in Scottsdale?

The typical process involves initial design and planning, obtaining necessary permits from the city, and then construction. A local licensed pro can guide you through each phase, ensuring compliance and quality workmanship for your Scottsdale ADU.

Also serving nearby: Phoenix · Glendale · Tempe · Mesa · Peoria

All cities in Arizona →

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

Service area details

244,394residents

1,328per sq mile

8ZIP codes served

Serving all of Scottsdale — population 244,394; about 1,328 residents per square mile across 184.0 sq mi. ZIP codes covered include 85250, 85251, 85252, 85254, 85255, 85256, 85257, 85258.

Neighborhoods served in Scottsdale: Old Town, McCormick Ranch, Gainey Ranch, Grayhawk, North Scottsdale, Kierland — and every surrounding area.