Affordable accessory dwelling unit

Looking for affordable accessory dwelling unit in Tempe, AZ? Call AccessoryDwellingUnit Solutions 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 involves several moving parts that shape your total budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.

About this service

Building an affordable unit often comes down to choosing efficient designs and pre-planned layouts rather than full custom builds. By simplifying utility connections and minimizing complex excavation, you can keep your project within a reasonable budget. While we aim to make the process accessible, the final bill depends on your specific site conditions. Exact pricing confirmed free on the call.

Frequently asked in Tempe

What are the disadvantages of ADUs?

Potential disadvantages of ADUs include the initial construction costs and the time required to complete the project. You'll also need to consider the impact on your existing yard space and the ongoing maintenance. However, the benefits of added living space or rental income in Tempe are often significant.

How much does an ADU cost in Massachusetts?

This service is specific to Arizona. While Massachusetts has its own construction market, an ADU in Tempe will be priced based on local material and labor costs. Factors like the size, design complexity, and site conditions are crucial for an accurate quote.

What are the rules for ADUs in California?

California has statewide ADU laws that are different from Arizona's. In Tempe, you must follow the city's specific zoning ordinances and building codes. These local regulations dictate important aspects like size, placement, and the number of ADUs allowed per property.

Is ADU allowed in Maryland?

Our services are focused on Tempe, Arizona. While Maryland has its own ADU regulations, we specialize in the local laws and building practices within Tempe. We can provide accurate information and guidance for your ADU project here.

While Tempe may have its own local or state programs to support ADU development, they will differ from California's initiatives. We can help you explore any relevant financial assistance for your ADU project in Arizona.

What are the rules for ADU in California?

California's ADU rules are established at the state level, with local jurisdictions implementing them. For Tempe, Arizona, the governing rules are set by the city's planning and building departments. Understanding these local ordinances is essential for compliance.

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, South Tempe, Papago Park, Estrella — and every surrounding area.