Homes with mother in law suites — 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
These homes include a dedicated living area for family members, often equipped with a private bathroom or small kitchenette. You need this if you want to keep family close while respecting everyone’s need for personal space. The cost of adding this to your home is typically driven by your plumbing needs, electrical requirements, and the scale of the interior renovation. Exact pricing confirmed free on the call.
Frequently asked in Scottsdale
What's the deal with modular versus traditional ADU construction in Scottsdale?
What makes an ADU 'best' for a Scottsdale property?
What are the specific challenges of building a backyard ADU in Scottsdale?
Are there specific regulations for ADUs in Scottsdale, Arizona?
What are the advantages of accessory dwelling units (ADUs) in Scottsdale?
How can I make my ADU construction in Scottsdale more affordable?
What constitutes a standard ADU unit 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, Gainey Ranch, Kierland, DC Ranch, Olde Scottsdale — and every surrounding area.
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