Adu housing — Scottsdale, AZ
Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
About this service
ADU housing refers to the creation of independent living units on the same lot as a primary residence. You might need this if you want to provide a private space for guests, generate rental income, or create a flexible home office. These units include their own kitchen, bathroom, and entrance. Whether you are looking for a detached cottage or a garage conversion, we help you navigate the process of adding functional, long-term living space to your existing property.
Frequently asked in Scottsdale
What are the local rules for building an ADU in Scottsdale?
Are there any ADU grants or incentives available in Scottsdale?
How do I find reputable ADU companies in Scottsdale?
Who are the best ADU builders serving Scottsdale?
What does accessory dwelling unit actually mean in Scottsdale?
In Scottsdale, an accessory dwelling unit (ADU) refers to a secondary housing unit on a single-family residential lot. This can be a detached structure, like a casita, or an attached addition to the primary home, providing independent living quarters. The term signifies a smaller, self-contained living space designed to be subordinate to the main dwelling, adhering to specific local zoning parameters.
What's the most cost-effective way to build an ADU in Scottsdale?
Where can I find an ADU for rent in Scottsdale?
Also serving nearby: Phoenix · Glendale · Tempe · Mesa · Peoria
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
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.
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