Accessory dwelling unit services — Chandler, AZ

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

These services cover the end-to-end process of adding a secondary home to your property. This includes initial zoning checks, architectural design, permit filing, and final construction. You need these services when you want to create a separate living space for family, guests, or as a rental unit, but don’t want to manage the complex legal and structural requirements on your own.

Frequently asked in Chandler

Also serving nearby: Gilbert · Tempe · Mesa · Phoenix · Glendale

All cities in Arizona →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

Serving all of Chandler — population 280,167; about 4,268 residents per square mile across 65.6 sq mi. ZIP codes covered include 85224, 85225, 85226, 85244, 85246, 85248, 85249, 85286.

Neighborhoods served in Chandler: Downtown Chandler, Ocotillo, Sun Lakes, Windham, The Lakes at Chandler, Old West Chandler — and every surrounding area.