Accessory dwelling unit contractor

Looking for accessory dwelling unit contractor in Los Angeles, CA? Call AccessoryDwellingUnit Pros 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 is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.

About this service

A contractor manages the trades, materials, and timeline required to complete your backyard home. You need a contractor when you have design plans ready or need a lead to coordinate electricians, plumbers, and carpenters to get the structure move-in ready. They act as your project manager, ensuring that the work is finished on schedule and adheres to the building plans filed with your local municipality. Their role is essential for keeping the construction phase organized and safe.

Frequently asked in Los Angeles

What are the disadvantages of ADUs in LA?

Potential disadvantages for ADUs in Los Angeles can include increased utility costs, potential impacts on neighborhood parking, and the initial investment in construction. You also need to consider how it might affect your property's insurance. The pros can help you weigh these factors.

How much does an ADU cost in California?

What are the rules for ADUs in California?

California has state-level laws encouraging ADUs, but local Los Angeles city and county ordinances provide specific details on setbacks, height limits, and parking requirements. These rules are designed to make ADU construction more accessible. The pros are well-versed in these regulations.

Is ADU allowed in Los Angeles?

Absolutely. Los Angeles has actively promoted ADU development to address housing needs. The city has streamlined many of the permitting processes for ADUs. Contacting a pro will confirm your property's specific eligibility and requirements.

How long does it take to build an ADU in LA?

The timeline for building an ADU in Los Angeles can range from several months to over a year, depending on permitting, design complexity, and construction speed. Factors like site preparation and material availability also play a role. A good pro will provide a realistic project schedule.

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, Santa Monica, Pasadena, Downtown LA, San Fernando Valley — and every surrounding area.