Cost of accessory dwelling unit — Glendale, AZ
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
The total price for an ADU depends on several moving parts, including the square footage, your foundation type, and local labor rates. Choosing high-end finishes or complex site prep will naturally increase the budget, while standard layouts help keep things manageable. Exact pricing confirmed free on the call.
Frequently asked in Glendale
Can I get an ADU built in Glendale within 24 hours?
What are accessory dwelling unit homes in Glendale?
What exactly is an ADU unit in Glendale?
Are homes with mother-in-law suites common in Glendale?
How does a modular accessory dwelling unit differ in Glendale?
Who is a qualified ADU builder in Glendale?
What should I look for in an accessory dwelling unit contractor in Glendale?
Also serving nearby: Phoenix · Surprise · Avondale · Tempe · Peoria
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Glendale — population 253,855; about 3,781 residents per square mile across 67.1 sq mi. ZIP codes covered include 85301, 85302, 85303, 85304, 85305, 85306, 85307, 85308.
Neighborhoods served in Glendale: Arrowhead Lakes, Cactus Corridor, Glendale Lakes, The Highlands, Westgate — and every surrounding area.
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