Looking for accessory dwelling unit companies in Scottsdale, AZ? Call AccessoryDwellingUnit Experts 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 is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.

About this service

These companies provide end-to-end management for property owners looking to add a secondary unit. They typically offer a mix of design, permitting, and construction management services to streamline the project. You need to hire a company when you want a structured, professional approach to the entire build process rather than managing individual subcontractors yourself. They help ensure your unit is built to code, on time, and aligned with your budget goals.

Frequently asked in Scottsdale

What are the disadvantages of ADUs in Scottsdale?

Disadvantages might include the initial cost of construction and the need to comply with Scottsdale's specific zoning ordinances and design guidelines. You should also consider potential impacts on your property's landscaping and utility expenses. A local professional can help you assess these.

How much does an ADU cost in Arizona?

What are the rules for ADUs in Arizona?

Arizona has state laws encouraging ADUs, but cities like Scottsdale have their own detailed ordinances. These typically cover lot size, setbacks, parking, and how the ADU relates to the primary residence. An expert can clarify these rules for your specific location.

Is an ADU allowed in Scottsdale?

Yes, accessory dwelling units are permitted in Scottsdale, provided they meet the city's comprehensive zoning and building codes. These regulations are in place to ensure ADUs are well-integrated into the existing community. A consultation can confirm your property's eligibility.

What are the rules for ADU in Scottsdale?

Scottsdale's ADU rules often focus on maintaining neighborhood character, including requirements for lot coverage, setbacks, and architectural compatibility. Parking requirements are also a key consideration. Getting a quote will help you understand these specific regulations for your project.

Can I get advice on ADU planning in Scottsdale?

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