Last updated: September 24, 2026
What affects the price
Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.
About this service
Building an ADU involves several variables that shift your final total, such as the size of the unit, whether you choose a detached structure or a garage conversion, and the complexity of your site’s plumbing and electrical needs. We help you navigate these choices to keep your project on track. Exact pricing confirmed free on the call.
Frequently asked in Scottsdale
What are the disadvantages of ADUs?
Potential downsides include the initial construction costs and the time involved in the permitting process. You'll also want to factor in ongoing maintenance. However, for many Scottsdale homeowners, the advantages like generating rental income or providing family space often outweigh these considerations. A personalized discussion can help you assess this.
How much does an ADU cost in Arizona?
The cost of an ADU in Arizona can vary widely. Major factors include the size of the unit, the quality of finishes, and the site's terrain. Any necessary utility upgrades or complex foundation work will also impact the price. To get an accurate figure for your Scottsdale home, obtaining a personalized quote from a local professional is the best approach.
What are the rules for ADUs in Arizona?
Arizona has state-level laws encouraging ADUs, but individual cities like Scottsdale have their own specific zoning ordinances. These rules often cover aspects like minimum lot size, setback requirements, and maximum height. Understanding these local nuances is vital for a successful project, making a call to an experienced builder very beneficial.
Is ADU allowed in Maryland?
That question pertains to a different state. In Scottsdale, Arizona, ADUs are generally permitted, provided they comply with the city's specific zoning regulations. It's always a good idea to confirm the latest local ordinances with the city planning department or a builder who is well-versed in our area's building codes.
What are the rules for ADU in California?
California has laws designed to promote ADUs, but their regulations don't apply to projects in Arizona. For your needs in Scottsdale, we focus on the local Arizona state and city-specific rules. Understanding these tailored regulations is essential for a smooth ADU project here.
That specific grant program is exclusive to California and is not applicable to ADU projects in Arizona. While there aren't widely available grants of that nature for ADUs in Scottsdale, the potential for increased property value and rental income typically offers a strong return on investment. Discussing your project scope will clarify financial aspects.
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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