Cost of accessory dwelling unit

Looking for cost of accessory dwelling unit in Glendale, CA? Call AccessoryDwellingUnit Services 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 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

Building an ADU involves several variables that shift the total investment. Your site conditions, the type of foundation, and the quality of finishes you choose will dictate whether you land on the lower or higher end of the spectrum. Because every lot is unique, we provide a breakdown of your specific project requirements to ensure full transparency. Exact pricing confirmed free on the call.

Frequently asked in Glendale

What are the disadvantages of ADUs in Glendale?

Potential disadvantages in Glendale might include the upfront construction investment and the need for adequate space for the ADU. You should also consider how it might affect your property taxes. A local professional can help you assess these aspects.

How much does an ADU cost in California?

ADU costs in California, including Glendale, vary widely based on size, materials, and site complexity. Factors like foundation type and whether you need to upgrade utilities play a big role. Getting a custom quote is the only way to know for sure.

What are the rules for ADUs in Glendale?

Glendale has specific zoning ordinances and building codes that govern ADU construction. These rules often cover setbacks, lot coverage, and parking requirements to ensure they fit within existing neighborhoods. Understanding these rules is crucial for a smooth project.

Is an ADU allowed in Glendale?

Yes, accessory dwelling units are generally allowed in Glendale, with specific zoning and building code requirements to follow. The city has regulations in place to guide their development. We can help you navigate those.

While there have been grant programs to help with ADU costs in California, these can change and have specific eligibility requirements. It's best to check current state and local funding options for your Glendale project. We can point you in the right direction.

Can I build an ADU on my property in Glendale?

Whether you can build an ADU in Glendale depends on your property meeting specific zoning criteria, including lot size and setbacks. The city's planning department has detailed requirements. A consultation will confirm your property's eligibility.

Also serving nearby: Pasadena · El Monte · Los Angeles · Inglewood · South Gate

All cities in California →

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

Service area details

187,050residents

6,137per sq mile

8ZIP codes served

Serving all of Glendale — population 187,050; about 6,137 residents per square mile across 30.5 sq mi. ZIP codes covered include 91201, 91202, 91203, 91204, 91205, 91206, 91207, 91208.

Neighborhoods served in Glendale: Downtown Glendale, Montrose, La Crescenta-Montrose, Verdugo City, Chevy Chase — and every surrounding area.