Best accessory dwelling unit — Tempe, AZ | AccessoryDwellingUnit Services

Looking for best accessory dwelling unit in Tempe, AZ? Call AccessoryDwellingUnit Services 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 investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

Frequently asked in Tempe

What are the disadvantages of ADUs?

Potential drawbacks include the initial construction cost and the impact on your yard. You'll also need to comply with Tempe's zoning and building regulations. It's best to have a detailed discussion with a local ADU specialist who can assess your specific property and explain any potential challenges. They can offer tailored advice.

How much does an ADU cost in Massachusetts?

This service is for Tempe, Arizona. ADU costs in Massachusetts are dependent on that state's market. For an accurate ADU cost estimate in Tempe, it is recommended to consult with local builders. They can provide a quote tailored to your property's specific needs and the current local rates for materials and labor.

What are the rules for ADUs in California?

Our focus is on Accessory Dwelling Units in Tempe, Arizona. California has its own distinct set of regulations for ADUs. If you require assistance with ADUs in California, you will need to find a service provider that specializes in that state's specific legal framework and building practices.

Is ADU allowed in Maryland?

We provide ADU services for Tempe, Arizona. Maryland has its own unique regulations concerning Accessory Dwelling Units. For ADU projects in Maryland, it's essential to seek out professionals who are knowledgeable about that state's particular building codes and permitting requirements.

What are the rules for ADU in California?

Our expertise lies in Accessory Dwelling Units within Tempe, Arizona. The rules for ADUs in California are different from those in Arizona. If you need help with ADU projects in California, you should look for a service that focuses on that state's specific regulations and construction standards.

Our services are for Accessory Dwelling Units in Tempe, Arizona. For information on any potential grants or financial incentives for ADUs in Arizona, it's advisable to consult with local city planning departments or ADU specialists in the Tempe area.

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: Tempe Town Lake, ASU Research Park, Papago Park, Broadmoor, Center City — and every surrounding area.