Cost of accessory dwelling unit

Looking for cost of accessory dwelling unit 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

Building an ADU involves several variables that influence the total investment, including your local site conditions, utility hookups, and the finishes you select for the interior. We focus on transparency throughout your project planning to keep you on budget. Exact pricing confirmed free on the call.

Frequently asked in Scottsdale

What are the disadvantages of ADUs in Scottsdale?

The main drawbacks can include the initial investment in construction and the time it takes to navigate permit processes with the city. You'll also need to consider how an ADU might impact your existing yard space and overall property aesthetics. However, many homeowners find the long-term financial and lifestyle benefits are well worth these considerations.

How much does an ADU cost in Arizona?

The cost of an ADU in Arizona can vary significantly based on its size, the chosen finishes, and the specific site challenges in Scottsdale. Factors like foundation type, utility connections, and landscaping will affect the final price. It's essential to get a custom quote tailored to your property for an accurate estimate.

What are the rules for ADUs in Arizona?

Arizona state law generally supports ADUs, but Scottsdale has its own specific zoning ordinances and design guidelines. These can cover aspects like lot coverage, setbacks, and the overall appearance of the unit to ensure it complements the existing neighborhood. Understanding these local nuances is key. A quick call can provide clarity.

Is an ADU allowed in Scottsdale?

Yes, ADUs are permitted in Scottsdale, provided they meet the city's established zoning and building code requirements. The city has policies in place to encourage the development of accessory dwelling units. This presents a great opportunity to add value and functionality to your property. Get advice specific to your home today.

What is the grant for ADUs in California?

How can I get a quote for an ADU in Scottsdale?

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

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