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
Searching for an ADU near you helps you find design and construction firms that are already familiar with your local zoning laws and permit offices. This is a great starting point when you want to see what is possible on your specific piece of land. Local experts can visit your site to determine if your lot qualifies for a detached unit or garage conversion based on local setbacks and utility access. Exact pricing confirmed free on the call.
Frequently asked in Tempe
What are the disadvantages of ADUs in Tempe?
Disadvantages can include the initial cost of construction and potential impacts on your yard. You'll also need to navigate Tempe's specific permitting process. Understanding these factors upfront is crucial for a successful project.
How much does an ADU cost in Arizona?
What are the rules for ADUs in California?
This service is specific to Arizona cities like Tempe. California has its own distinct set of rules and regulations for ADUs that differ from those in Arizona. For California ADU information, you'll need to consult resources specific to that state.
Is ADU allowed in Maryland?
Our focus is on Arizona cities like Tempe. Maryland has its own unique regulations regarding accessory dwelling units. To find information about ADUs in Maryland, you should seek out local resources within that state.
Grant programs for ADUs can be very specific and have varying availability. While some incentives have existed in California, they likely wouldn't apply to projects in Arizona. It's best to inquire about current local incentives during your consultation.
What are the rules for ADU in California?
California's ADU laws are designed to streamline their creation, but local ordinances still apply. These often cover aspects like parking and lot coverage. Understanding both state and local guidelines is vital for a successful ADU build.
Also serving nearby: Chandler · Gilbert · Mesa · Phoenix · Glendale
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
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 Downtown, ASU Research Park, South Tempe, East Tempe, West Tempe, Papago Park — and every surrounding area.
Areas we serve
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