Best accessory dwelling unit — Tempe, AZ | AccessoryDwellingUnit Pros

Looking for best accessory dwelling unit in Tempe, AZ? Call AccessoryDwellingUnit Pros for a contact a provider — no obligation. Licensed adu builders serve Tempe and the surrounding area, and you'll get straight answers on timing and what affects the price.

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

The best ADU for your property is one that increases your home value while meeting your specific lifestyle needs. Whether you need a private office, a rental income source, or a space for family, the right unit features durable materials and an efficient layout. We focus on high-quality construction that stands the test of time, ensuring your investment is built to last. We help you design the perfect fit. Exact pricing confirmed free on the call.

Frequently asked in Tempe

What are the disadvantages of ADUs in Tempe?

Potential drawbacks include the initial construction costs and the impact on your current yard space. You'll also need to adhere to Tempe's specific zoning and building codes. It's important to consider these factors when planning.

How much does an ADU cost in Arizona?

The cost of an ADU in Arizona is highly variable, depending on size, design complexity, and site conditions. Factors like foundation type, utility connections, and interior finishes all contribute to the overall price. A personalized quote is the best way to know.

What are the rules for ADUs in Arizona?

Arizona has state laws that encourage ADUs, but cities like Tempe have their own local regulations. These often cover lot coverage, setbacks, and parking requirements. Our local pros are well-versed in these specific Tempe rules.

Is an ADU allowed in Tempe?

What's the best accessory dwelling unit for my Tempe home?

The best ADU for your Tempe home depends on your goals and property layout. Consider if you need a small studio, a one-bedroom unit, or something larger. Think about its intended use – rental income, family, or a home office. We can guide you.

Also serving nearby: Chandler · Gilbert · Mesa · Phoenix · Glendale

All cities in Arizona →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

189,834residents

4,748per sq mile

8ZIP codes served

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, ASU Area, Warner Ranch, South Tempe — and every surrounding area.