Accessory dwelling unit permit cost

Looking for accessory dwelling unit permit cost 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

Permitting is a necessary step that varies significantly depending on your local city or county regulations. These fees often cover zoning reviews, impact assessments, and building inspections. Because every jurisdiction has different fee structures, these costs fluctuate based on where your property is located. We help you navigate these requirements during the planning phase to ensure everything is handled correctly. Exact pricing confirmed free on the call.

Frequently asked in Tempe

What are the disadvantages of ADUs?

Potential disadvantages include higher utility bills, the responsibilities of managing tenants if rented, and the impact on property taxes. You'll also need to account for ongoing maintenance and potential neighborhood considerations. These are important factors for homeowners in Tempe.

How much does an ADU cost in Arizona?

ADU costs in Arizona depend heavily on the size, materials used, and site conditions. Adding a kitchen or bathroom, the type of foundation, and the chosen finishes will all affect the price. A custom quote is necessary for an accurate cost estimate in Tempe.

What are the rules for ADUs in Arizona?

Arizona has state laws that support ADU development, and cities like Tempe have their own specific zoning ordinances. These typically address lot size, setbacks, parking requirements, and maximum unit size. Adhering to local regulations is crucial for a successful project.

Is ADU allowed in Maryland?

This information is specific to Arizona. Tempe, Arizona, operates under specific state laws and its own local zoning ordinances for Accessory Dwelling Units. We can provide details relevant to Arizona's ADU framework.

That particular grant is specific to California. Tempe, Arizona, may have different types of incentives or programs available. It's recommended to check with the city of Tempe or Maricopa County for any current funding opportunities or grants applicable to ADU construction.

What is the accessory dwelling unit permit cost?

Permit costs for ADUs in Tempe can vary based on the complexity of your project and the city's fee schedule. These fees typically cover plan reviews and inspections. The specifics of your ADU design will influence the final permit expenses. We can help clarify these potential costs.

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, Downtown Tempe, South Tempe, Papago Park, University Heights — and every surrounding area.