Accessory Dwelling Unit Contractor in Tempe, AZ

Looking for accessory dwelling unit contractor in Tempe, AZ? Call AccessoryDwellingUnit Direct 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 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.

About this service

A contractor oversees the physical construction, managing the subcontractors, materials, and daily site operations. You need a contractor when you have your designs finalized and are ready to transition into the building phase. They ensure the foundation is poured correctly, the framing is solid, and the utilities are hooked up safely. A good contractor acts as your primary point of contact, keeping the work on schedule while maintaining high standards of quality for your new dwelling.

Frequently asked in Tempe

What are the disadvantages of ADUs?

Disadvantages can include increased utility costs for the property owner and potential impacts on privacy or yard space. The initial construction cost is also a significant factor to consider. Thorough planning is essential to mitigate these concerns.

How much does an ADU cost in Massachusetts?

ADU costs in Massachusetts are influenced by many factors, including size, design, and location. Labor and material prices are key components. To get an accurate estimate for your project, a detailed quote tailored to your specific needs is necessary.

What are the rules for ADUs in California?

California has state laws designed to simplify ADU development, setting standards for size and setbacks. Local cities must adhere to these laws, though they can implement their own specific development requirements. Compliance with both levels is important.

Is ADU allowed in Maryland?

Yes, ADUs are generally permitted in Maryland, but specific regulations vary widely by county and city. Some jurisdictions have more lenient rules to encourage ADU construction. It's crucial to consult the local planning and zoning department for precise information.

California has offered financial assistance, including grants and loans, to support ADU construction, especially for lower-income households. These programs are intended to make ADUs more accessible. The availability and terms of these programs can vary.

What are the rules for ADU in California?

California's ADU laws provide clear guidelines for development, including allowances for junior ADUs and minimum unit sizes. These state regulations aim to increase housing supply. Local cities are mandated to follow these state laws.

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: University District, South Tempe, Tempe Town Lake, Downtown Tempe, ASU Research Park — and every surrounding area.