Accessory dwelling unit homes — 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
Accessory dwelling unit homes are fully functional, independent residences that share a lot with a main house. You need one of these if you are looking to increase the value of your property or accommodate changing family needs, such as adult children or elderly parents. These homes are designed to be comfortable and complete, offering all the amenities of a standard house in a smaller footprint. We specialize in designing these homes to complement your existing property and neighborhood aesthetic.
Frequently asked in Scottsdale
What are the general requirements for building an ADU in Scottsdale?
In Scottsdale, building an accessory dwelling unit typically involves meeting specific zoning ordinances related to lot size, setbacks, and maximum building coverage. The city requires that ADUs be subordinate to the primary dwelling and comply with all applicable building codes. Pros can review your specific lot to confirm eligibility and guide you through the necessary steps for approval. They will ensure your project aligns with all local regulations.
How much does it typically cost to build an ADU in Scottsdale?
What is the permitting process for ADUs in Scottsdale?
The permitting process for an ADU in Scottsdale involves submitting detailed architectural plans, structural engineering documents, and site plans to the city's planning and development department. The pros understand these submission requirements thoroughly. They can prepare and submit all necessary documentation on your behalf, streamlining the approval process. This ensures compliance and avoids delays.
What are the advantages of adding an ADU to a Scottsdale property?
Adding an accessory dwelling unit in Scottsdale can provide significant benefits, including generating rental income, accommodating family members, or increasing your property's resale value. An ADU offers flexible living solutions within your existing lot. The pros can help you design an ADU that maximizes these advantages for your specific circumstances. They'll ensure it meets your needs.
Can I build a 24-hour ADU in Scottsdale?
The concept of a '24-hour ADU' isn't a standard building term; however, accessory dwelling units in Scottsdale are designed for permanent occupancy and can be lived in at any hour, subject to local ordinances. The pros can explain the regulations concerning occupancy limits and usage. They ensure your ADU is fully compliant and habitable for its intended purpose. This means it's ready for immediate use.
What does 'accessory dwelling unit' mean in the context of Scottsdale zoning?
An accessory dwelling unit (ADU) in Scottsdale refers to a secondary, independent housing unit located on a single-family residential lot. It has its own living, sleeping, kitchen, and bathroom facilities. The pros can clarify how these definitions apply to your property and neighborhood. They ensure your ADU plans meet all city specifications for secondary housing.
Are there affordable ADU construction options available 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, Gainey Ranch, Kierland, Scottsdale Waterfront, DC Ranch — and every surrounding area.
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