Accessory dwelling unit contractor

Looking for accessory dwelling unit contractor 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 contractor oversees the physical build, managing the subcontractors, materials, and daily construction progress. They are responsible for making sure the structure is built according to the approved plans and local safety standards. You need a contractor when you have your designs finalized and are ready for the actual building phase to begin. They act as the primary point of contact for all site activity.

Frequently asked in Los Angeles

What are the disadvantages of ADUs in Los Angeles?

Some potential disadvantages of ADUs in Los Angeles can include the initial investment in design and construction, as well as the time it takes to secure permits. You might also consider how it impacts your current yard space. However, the benefits of increased property value and rental income are significant.

How much does an ADU cost in Los Angeles?

The cost of an ADU in Los Angeles is influenced by many factors, including the size, type of ADU (e.g., attached or detached), materials used, and specific site conditions. Permit fees and utility connection costs also contribute. To get an accurate price, it’s essential to discuss your project details with a local ADU specialist.

What are the rules for ADUs in California?

California has state-level laws that simplify ADU development, but Los Angeles also has its own local ordinances. These rules cover aspects like minimum lot size, setbacks, and height restrictions. Working with professionals familiar with both state and city regulations is crucial for compliance.

Is an ADU allowed in Los Angeles?

Absolutely. Los Angeles has been very proactive in encouraging ADU development to address housing shortages. There are specific zoning codes and streamlined processes designed to make building an ADU more accessible. Understanding these regulations for your specific area is key.

Can I build an ADU on a small lot in Los Angeles?

California state law has made it easier to build ADUs on smaller lots. Los Angeles has specific guidelines, but generally, if your lot meets certain size requirements and other zoning criteria, an ADU is feasible. The pros can assess your lot's specific potential.

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 Hills, Venice, Pasadena, Silver Lake, Burbank, Long Beach — and every surrounding area.