Adu company — Scottsdale, AZ | AccessoryDwellingUnit Services

Looking for adu company 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

A professional company handles the heavy lifting, including architecture, engineering, permit submittals, and the actual construction labor. You need an experienced team when you want to ensure your unit is built to code, structurally sound, and completed on a predictable schedule. We act as your single point of contact, coordinating every trade and inspection so you aren't managing subcontractors yourself. We provide professional oversight from start to finish. Exact pricing confirmed free on the call.

Frequently asked in Scottsdale

How much does an ADU cost in Arizona?

The cost of an ADU in Arizona can vary significantly based on size, materials, and complexity. Factors like site preparation, foundation type, and desired finishes all play a role. To get an accurate understanding for your specific Scottsdale property, it's best to get a personalized quote from a local expert.

What are the rules for ADUs in Arizona?

Arizona has specific regulations regarding ADU size, setbacks, and occupancy, which can vary by city. The specialists you'll speak with understand these requirements and can guide you through the approval process for your Scottsdale project. They'll ensure your plans meet local zoning.

Is an ADU allowed in Scottsdale?

What kind of ADU designs are popular?

Popular ADU designs often include detached backyard cottages, garage conversions, and additions to existing homes. Many homeowners opt for designs that complement their main house's architecture. The pros can show you examples and discuss what works best for your Scottsdale property.

How long does it take to build an ADU?

The timeline for building an ADU can range from a few months to over a year, depending on design complexity, permitting, and construction. Factors like weather and the availability of specialized crews also contribute. Get advice on typical timelines for Scottsdale projects when you call.

What are the disadvantages of ADUs?

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 Scottsdale, McCormick Ranch, Kierland, Gainey Ranch, DC Ranch — and every surrounding area.