ADU Design & Construction in Los Angeles

High-End Design/Build Firm Serving the San Fernando Valley & West LA

Our in-house designer, Donna, is well-versed in construction matters, and, with her general contractor partner Eli, will help you bring together a design that is both beautiful, feasible, and achieves the goals you have for your ADU project.

We have worked extensively with dozens of contractors throughout Southern California on some of the most exclusive properties in the area. Our portfolio speaks for itself, as does our commitment to high quality. 

Feel free to browse our pictures to get an idea about the level of projects we build throughout the Los Angeles area and contact us at (310) 254-9687 when you’re ready to discuss how to get started.

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Why Choose Quality First Builders?

What Makes Us Different

Serving the Greater Los Angeles Area Since 2014

  • One-Stop Shop

    From remodels, to home additions, to new construction, we've got you covered.

  • Affordable Financing Options
    Our flexible financing options support you however you'd like to pay.
  • Licensed & Insured
    You can rest assured that our team is licensed, insured, and thoroughly vetted.
  • 100% Satisfaction Guarantee
    You can be confident you'll be happy when our team drives away.

An Amazing Look for Your ADU


The colors of materials that go into your new ADU will make or break the design. That’s why we rely on the keen design-eyes of Donna to make sure everything flows and provides the desired effect and feel we’re going for. The walls will often be painted early in the process before the cabinets and trim go up. Touch-ups will be done near the end as needed to make sure the final product is 100%.

Kitchen and Bathroom Cabinets

The cabinets will be delivered in carefully packaged boxes. Our carpenters will take the checklist and check through each box to make sure the cabinets are the correct shapes and sizes and also make sure they’re not damaged. When it’s time to install them, you’ll be amazed at how fast it goes. One minute your walls are bare. A few hours later, your kitchen has been transformed.

Countertops and Backsplashes

Once the cabinets are installed, the countertop company will send a technician to take a careful laser-guided measurement. He’ll take that measurement back to the factory to cut the stone in the exact shapes and sizes that will fit your home. Once they come back and secure the countertops in place, the tile installer will install your backsplash. This is where things really start to come together.

Layouts, Foundations, and Framing

ADU projects come in all shapes and sizes. Some exist as an attachment or subsection of a house while others are entirely their own building. The great thing about working with Quality First Builders is the flexibility they have when it comes to custom buildings.

Our background in remodeling and custom homes gives us a large bank of experience to draw on when we’re working with complex projects that are not cookie-cutter. We will carefully select the best contractors from our large network to carry out each individual part of your project at the highest level of quality.

Electrical and Plumbing

Though typically smaller, an ADU is basically another house. It has all of the amenities a normal house has and that requires an ample supply of electricity and water. Wastewater must also be carried away from the building and connected to the sewer or septic system.

These aren’t the exciting, glamorous parts of an ADU project but they are arguably some of the most important. Thinking ahead on these things will save a lot of time and money and provide you with a complete ADU that is ready to be lived in immediately.

Design, Blueprints, Engineering, and Permits

The laws and regulations around building ADUs in Los Angeles are constantly changing so it’s extremely important to stay up to date with what is allowed and what rules need to be followed. Eli and Donna at Quality First Builders will take you through the entire process from discussing your vision for your ADU project to design to construction.

Discover the Quality First difference by calling (310) 254-9687. We can also be reached through our online contact form.

Contact Us Today

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Hear From Our Happy Customers

At Quality First Builders, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

    “First-Class Team”
    “We learnt about Quality First builders while they were doing a project near our home. We met them and had really good vibes from the get-go.”
    - Bharat C.
    “Clean & Orderly”
    “What we appreciated most was Eli’s honesty–he provided a detailed quote with line items broken down. It was very clear what was included and what was not.”
    - Rosemarie W.
    “Fun & Convenient”
    “Having an interior designer was definitely a big plus especially since it was at no charge and was part of the service. We both loved how they worked so well together.We will definitely be using quality first builders for our room addition project in the f”
    - Chris S.
    “Definitely Recommend”
    “A remodel like this has the potential to be extremely stressful, but this process went smoothly.”
    - Clark H.
    “Extremely Patient”
    “Quality First Builders is definitely a company that we will be using in the future and recommend them to anyone that needs remodeling”
    - Sylvie M.
    “Fell In Love!”
    “I am very happy with the decision I made to go with Quality First Builders.”
    - Debbie K.
    “Great Interior Design”
    “He showed me pictures of projects that he had done on the same level and I was very impressed with his work, I even went to see one of the projects”
    - Arieh S.
    “They Delivered”
    “From start to finish Eli, the owner, made us feel secure and comfortable with the entire process.”
    - Dr. S.



The trim is what frames your floors, ceilings, windows, and doors. It’s what adds a depth of field to your walls and makes you take notice when you walk into a different room. The type of trim that goes into your ADU will depend on the other major design features of the project and add an elegant transition to each room.


The flooring doesn’t only need to look great, but it needs to hold up to the abuse it’s surely going to receive from the day-to-day life of the inhabitants of your ADU. Dropping things, dogs running around, and spilling liquids are only a few of the challenges your floor must be facing so we’ll take special care when choosing the materials and construction methods for this part of your project.


Finally, lighting is what makes the magic happen. A proper lighting installation accents the amazing features of your new ADU while shining light, literally, on your day-to-day activities. Again, Donna’s eye for design when it comes to lighting puts the finishing touches on every ADU remodel project we complete.

Technical details & help of engineers

Going back and forth on what the design will look like is the fun part. Next comes the technical parts. With the help of architects and engineers, we figure out what kind of structural elements will support the visual designs that were decided on. The end result is a blueprint that can be used to plan and then execute the project.

Save Time by Involving a General Contractor from Day One


Usually, the finished blueprint is handed over to a general contractor, but at Quality First Builders, the general contractor has been involved since day one. This means that he already knows what’s going on and the plans already reflect the reality that is our physical world. There’s no need to spend months going back and forth between the whimsical designer and the realist contractor because they already know each other very well. They are man and wife. It’s up to the general to craft the plan of attack and make a list of all of the tradesman that will be necessary to complete this complex process. He reaches out to the proven professionals in his network and tasks them each with analyzing their part of the project and producing an estimate to complete his part. They’ve been working together for years so the process is smooth and efficient.


The general contractor also interacts with city officials to make sure all of the necessary permits are purchased and the inspections lined up for each stage of construction. He uses his years of experience and personal contacts in the city to make this process move along quickly while avoiding getting held up for no good reason.


Once these necessary pieces of the puzzle have been gathered, it’s time to plan how they will go together. With careful attention to detail and the natural order of operations of construction, the general contractor coordinates his army of tradesman and gets everyones’ schedules aligned so they can be ready to do their part when the time comes.

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