Accessory dwelling unit companies — 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.
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Frequently asked in Scottsdale
What's involved in getting an affordable ADU built in Scottsdale?
Can you explain what an accessory dwelling unit is?
An accessory dwelling unit (ADU) is a secondary housing unit on a single-family residential lot. In Scottsdale, this typically refers to a detached structure like a guest house or garage conversion, or an attached unit within the primary home. ADUs provide independent living quarters with their own kitchen, bathroom, and sleeping area. They are a versatile solution for increasing housing density and accommodating diverse household needs within existing neighborhoods.
Who are the reputable ADU builders serving Scottsdale?
What influences the cost to build an ADU in Scottsdale?
What are the downsides of having an accessory dwelling unit?
Potential disadvantages of ADU homes can include increased utility usage and potentially higher property taxes, though these are often offset by rental income or added living space. Some homeowners may also experience a reduction in their backyard usable space. However, with proper planning and design, these drawbacks can be minimized. We help you consider all aspects when planning your ADU.
How much does it cost to construct an ADU in the Scottsdale area?
How do I get an ADU quote for my property?
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, Kierland, McCormick Ranch, Gainey Ranch, DC Ranch — and every surrounding area.
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