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.
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Frequently asked in Tempe
What are the disadvantages of ADUs in Tempe?
Disadvantages of adding an ADU in Tempe can include the upfront construction costs and the potential reduction in your yard space. You'll also need to consider utility connections. However, the benefits of increased property value and rental income often make ADUs a worthwhile investment for many homeowners. We can help you assess these trade-offs.
How much does an ADU cost in Arizona?
The cost of an ADU in Arizona, including Tempe, varies significantly based on its size, design, and the materials used. Factors like site preparation, foundation type, and interior finishes all influence the total price. Getting a personalized quote from a local professional is the most accurate way to determine your project's cost. A quick call can set that up.
What are the rules for ADUs in Tempe?
Tempe has specific zoning ordinances and building codes that govern the construction of accessory dwelling units. These regulations typically address lot coverage, setbacks, parking requirements, and design standards. It's important to be familiar with these local rules. We can help you find a specialist who understands Tempe's ADU requirements.
Is an ADU allowed in Tempe?
Yes, accessory dwelling units are generally allowed in Tempe, provided they comply with the city's zoning and building regulations. Tempe has policies to encourage the development of ADUs. To confirm eligibility for your specific property and understand all the necessary steps, it's best to consult with a local ADU professional. They can review your site and offer guidance.
This grant is specific to California and does not apply to ADU projects in Tempe, Arizona. We can help you explore potential local funding sources for your ADU project.
What are the rules for ADU in California?
Also serving nearby: Chandler · Gilbert · Mesa · Phoenix · Glendale
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Tempe — population 189,834; about 4,748 residents per square mile across 40.0 sq mi. ZIP codes covered include 85280, 85281, 85282, 85283, 85284, 85285, 85287, 85288.
Neighborhoods served in Tempe: Downtown Tempe, University District, South Tempe, Warner Ranch, Hudson Park — and every surrounding area.
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