Accessory dwelling unit construction cost

Looking for accessory dwelling unit construction cost in Glendale, AZ? Call AccessoryDwellingUnit Experts for a contact a provider — no obligation. Licensed adu builders serve Glendale 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 is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.

About this service

The cost to build an ADU varies based on whether you are converting an existing garage or building a new detached structure from the ground up. Factors like foundation work, utility extensions, high-end finishes, and site access all influence the final total. Exact pricing confirmed free on the call.

Frequently asked in Glendale

What are the disadvantages of ADUs?

How much does an ADU cost in Arizona?

What are the rules for ADUs in Arizona?

Arizona has statewide ADU laws that encourage their development, but local jurisdictions like Glendale may have specific regulations. These often cover things like minimum unit size, owner occupancy, and parking requirements. Knowing these rules is crucial. Call us for advice on Glendale's regulations.

Is an ADU allowed in Maryland?

This question pertains to a different state. Our services are focused on ADU construction in Arizona, including Glendale. If you're looking to build an ADU here, we can provide you with the most relevant and accurate information. Let's focus on your local project needs.

What are the rules for ADU in California?

That specific grant is a California initiative and not available in Arizona. While there may not be similar large-scale grants widely advertised for ADUs in Arizona currently, the financial benefits of an ADU through rental income and increased property value are substantial. Let's discuss your project's potential.

Also serving nearby: Phoenix · Surprise · Avondale · Tempe · Peoria

All cities in Arizona →

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

Service area details

253,855residents

3,781per sq mile

8ZIP codes served

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: Downtown Glendale, Arrowhead Lakes, Cimarron Hills, Glenmoor, Lake Pleasant, Palmcroft — and every surrounding area.