ADU Contractors | Los Angeles & Bay Area

Modern ADU interior by ADU Contractors in Los Angeles at Oro Coast Builders, featuring a compact kitchen, dining area, custom cabinetry, premium finishes, and functional open-concept design.

At ORO Coast Builders, we are your dedicated experts in crafting exceptional Accessory Dwelling Units (ADUs). ADUs, often referred to as in-law units, have become an increasingly popular housing solution in California’s densely populated cities. With a mix of changing legislation, housing shortages, and the need for multi-generational living, ADUs offer homeowners an efficient way to maximize their property space. Oro Coast Builders, with its exceptional track record and commitment to quality, stands out as a leading ADU contractor in both Los Angeles and the Bay Area. With over 25 years of experience upgrading homes in Los Angeles and the Bay Area, we know how to build a home extension that will fit seamlessly into the design of your property, utilizing excellent craftsmanship and attention to detail with every step of the process. 

Before + Afters | Recent ADU Projects

  • Home addition under construction by Home Addition Contractors in Los Angeles at Oro Coast Builders, showing framing, structural expansion, and the early stages of a custom residential addition.

    Before

  • Completed home addition by Home Addition Contractors in Los Angeles at Oro Coast Builders, featuring a new front porch, modern exterior finishes, custom entry, and seamless architectural integration.

    After

  • Existing backyard before ADU construction by ADU Contractors in Los Angeles at Oro Coast Builders, showing an aging detached garage, cracked concrete driveway, and undeveloped outdoor space in Studio City.

    Before | ADU in Studio City

  • Completed backyard ADU by ADU Contractors in Los Angeles at Oro Coast Builders, featuring a modern detached accessory dwelling unit, wood deck, open patio, and contemporary outdoor living space in Studio City.

    After | ADU in Studio City

What is An ADU?

An Accessory Dwelling Unit, or ADU, is an additional, independent housing unit that exists on the same lot as a primary residence. ADUs can be detached, attached to the primary dwelling, or even a part of the main residence, such as a basement or garage conversion.

Types of ADUs

There are a variety of ADUs that can be designed and built so that you can find one that best suits your budget and needs. Some of these include: 

  • Detached structure This will be a small residential building built away from the property, in the form of a small cottage or granny flat. This is a great way to increase your square footage and create separation from your home and the new structure. 

  • Basement or garage conversion. Breathe new life into your basement or garage and transform it into a living space with amenities and a space to sleep. This is a great way to utilize space that is collecting dust. 

  • Junior ADU. These are great if you have a small space to use and would still like to design and build a residential structure. These are similar to tiny homes. 

The right structure will depend on a variety of factors, including your intended use of the structure, your budget, your needs, the space you have available, local regulations, and more. 

Our addition and ADU specialists can work with you to find a solution that meets every one of your needs. We can incorporate the addition or ADU build as part of a bigger, home remodel project, or we can commission it as a single project. As a design and build company, we will work with you every step of the way, from the idea stage all the way to completion.

Contact us today to learn more. 

Benefits of Building an ADU

Income Opportunity: Renting out your ADU can provide an additional source of income.

  • Increases Property Value: Well-constructed ADUs can significantly increase the value of your property.

  • Multi-Generational Living: They offer a space for elderly family members or young adults.

  • Flexibility: They can serve as home offices, guesthouses, or rental units.

White hand-applied plaster wall texture used in luxury home remodeling by Oro Coast Builders.

Why Choose Oro Coast Builders?

As experienced ADU builders in Los Angeles and the Bay Area, we have the knowledge, skills, and experience to help you build the perfect structure that will extend your home. We can help you decide what home extension is best suited for your needs, goals, budget, and property structure, as well as assist in obtaining the correct permits. The design will be fully customized, as we work closely with you to meticulously plan every detail. We don’t offer prefab builds, and instead, source the best materials and create a structure that is built to last. 

When you choose Oro Coast Builders, you choose to work with high-quality and trusted professionals. Our specialist team includes every professional needed to complete the addition or ADU project within Los Angeles and the Bay Area, from interior designers to architects.

Studio City ADU Project

Modern backyard ADU by ADU Contractors in Los Angeles at Oro Coast Builders, featuring a detached accessory dwelling unit, wood deck, outdoor living space, and contemporary architectural design.

Check Out Our Recent Acessory Dwelling Unit Renovation

Commonly Asked Questions About ADUs