Adu company — Los Angeles, CA | AccessoryDwellingUnit Services

Looking for adu company in Los Angeles, CA? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Los Angeles 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

A professional company handles the heavy lifting, including architecture, engineering, permit submittals, and the actual construction labor. You need an experienced team when you want to ensure your unit is built to code, structurally sound, and completed on a predictable schedule. We act as your single point of contact, coordinating every trade and inspection so you aren't managing subcontractors yourself. We provide professional oversight from start to finish. Exact pricing confirmed free on the call.

Frequently asked in Los Angeles

What are the rules for ADUs in California?

California has state-level ADU laws encouraging their creation, but local jurisdictions like Los Angeles have their own specific ordinances. These cover lot coverage, setbacks, and parking requirements. A local professional will know exactly what applies to your property in LA.

The California ADU Grant Program offers funds to help offset pre-construction and soft costs for ADU projects. Eligibility and specific amounts can vary. It's worth discussing with a local ADU expert who stays current on these programs for homeowners in Los Angeles.

How much does an ADU cost in Los Angeles?

What are the disadvantages of ADUs in Los Angeles?

Potential disadvantages include navigating LA's building codes and permitting process, which can be complex. Also, consider impacts on existing utilities and potential neighborhood concerns. A local ADU professional can help you anticipate and address these issues.

Is an ADU allowed in my area of Los Angeles?

Generally, ADUs are permitted in most residential zones across Los Angeles, thanks to state and local incentives. However, specific lot size, setbacks, and zoning details matter. A quick call can help you confirm feasibility for your specific address.

How long does it take to build an ADU in Los Angeles?

The timeline can vary, typically ranging from several months to over a year, depending on design, permitting, and construction. Permitting can take a significant portion of that time. Local specialists can provide a more precise timeline after assessing your project.

Also serving nearby: Santa Monica · Inglewood · South Gate · Compton · Torrance

All cities in California →

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

Service area details

3,820,914residents

8,120per sq mile

8ZIP codes served

Serving all of Los Angeles — population 3,820,914; about 8,120 residents per square mile across 470.5 sq mi. ZIP codes covered include 90001, 90002, 90003, 90004, 90005, 90006, 90007, 90008.

Neighborhoods served in Los Angeles: Hollywood, Downtown LA, Santa Monica, Pasadena, West Hollywood — and every surrounding area.