Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
A dedicated contractor manages the heavy lifting of your ADU project. This involves hiring skilled tradespeople, ordering materials, and ensuring that every phase of construction passes municipal inspections. You need a contractor when you want a single point of contact to oversee the transition from a vacant backyard area to a fully finished, livable home. They bridge the gap between initial architectural designs and the final move-in date for your new space.
Frequently asked in Scottsdale
What are the disadvantages of ADUs?
Potential disadvantages of ADUs include the initial construction costs and the impact on your existing property's yard space. You may also see an increase in utility bills. However, for many Scottsdale homeowners, the benefits of increased living area, rental income, and enhanced property value significantly outweigh these drawbacks.
How much does an ADU cost in Arizona?
What are the rules for ADUs in Arizona?
Arizona has state legislation supporting ADUs, but local cities like Scottsdale have their own specific zoning ordinances. These typically address requirements for lot size, setbacks from property lines, maximum unit size, and parking. It’s essential to consult with professionals who are familiar with Scottsdale’s precise regulations to ensure compliance.
Is an ADU allowed in Scottsdale?
Yes, ADUs are permitted in Scottsdale, provided they meet the city's zoning and building code requirements. These regulations govern aspects like the size of the ADU, its placement on the property, and any limitations on occupancy. Our service can help you connect with experts who understand these specific Scottsdale ordinances.
Can I build a casita as an ADU?
Building a casita, or detached guest house, as an ADU is a popular option in Scottsdale. You'll need to ensure it complies with setback requirements, lot coverage limits, and any other specific regulations the city has for detached accessory structures. A quick call will help you confirm the feasibility for your property.
What permits do I need for an ADU in Scottsdale?
You will likely need building permits, zoning approvals, and potentially separate permits for electrical and plumbing work. The exact requirements depend on the scope and complexity of your ADU project. The professionals you speak with can guide you through the necessary permitting process with the City of 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, Kierland, McCormick Ranch, Gainey Ranch, DC Ranch — and every surrounding area.
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