High-end Design/Build Firm Specializing in ADU Design & Construction in LA

Eli and Donna will design and build a home addition that is so good nobody will know it wasn’t there all along.

Eli and Donna - ADU Construction & Design Experts in Los Angeles

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 when you’re ready to discuss how to get started.

ADU Construction Project in Los Angeles

Check out one of our recent ADU construction projects that we completed for our awesome client in Los Angeles. See the pictures of our work and listen to them share their experience of working with us!

Please check out the video that shows the work done on this project.

Photos of Completed Projects

Take a look at some of our previous renovation projects and if you like what you’re seeing then give us a call or fill out the form below and we will be calling you as soon as we can to talk about your project.

"Working with Eli & his wife for the duration of my Woodland Hills bathroom remodeling project has been a pleasant experience from start to finish. They have an average of 5 stars for a reason - because they're timely, communicative, affordable, and professional."

- Al Bundy

"Our bathroom remodel is completed and we couldn't be happier with how everything turned out. Eli and his crew worked diligently to complete the project. Eli and his crew stand by the quality of their work."

- Anh P.

"Eli and his team are easy to communicate with, trustworthy and very fast! They did an amazing job remodeling our kitchen and wet bar. Will use them again for our bathroom!"

- James P.

Totally New Look

Starting With a Dream

Every ADU project starts with a dream. You close your eyes and see yourself occupying a space that only exists in your mind. Everything is perfect, just the way you want it. It’s not a clear vision, but the feeling is there. You know exactly what you want and you’re trying to figure out what it looks like. It’s the job of Donna, our all-star designer, to help you visualize the possibilities.

Starting With Your Existing Property

Whenever we’re working with an existing property, we have an existing space in which to work. We have to carefully measure what is already there and find a way to replace it or add to it with something else. Modern technology makes it possible to build these projects in a digital environment so we can move around inside of it and see from every angle what the end result will be.

Let's Talk About Your Vision

Reach out to us, describe what you are trying to create and we will provide a detailed explanation of how we can make your dream come true!

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.

A Totally New Look



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

Pricing out the design

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.

Getting the necessary permits and lining up inspections

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.

Scheduling the project

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.

Building The Project

Day one arrives and it’s finally time to begin the construction process. Out with the old and in with the new! The demolition team gets to work with their sawzalls, sledgehammers, and crowbars disassembling the existing structure.

Orchestrating Trades and Quality Control

Each phase of construction builds on the last. What happens during demolition affects the foundation. The foundation affects the framing, and so on. If one piece is messed up even a little bit, it will come back to cause huge problems down the line. This is the biggest fear of the general contractor. Experience has taught him to pay extremely close attention to the end result during each phase of construction so he can keep an eye out for problems that might arise in the future.

Clear and consistent communication is a large part of the general contractor’s role, keeping you, the client, apprised of the status and progress of your project and facilitating on-the-fly decision-making that inevitably happens on every project. Where others fail in this area, Eli excels. His passion and enthusiasm for the remodeling process and serving his clients helps him tackle issues head-on as soon as they come up. His clients appreciate this about him.

Punch List: The final pieces to the puzzle

Near the end of the construction process, there is always a list of small things that need to be taken care of. This is when you’ll see the clipboard come out with a long list of items, half of which are checked off. The punch list is well underway and the moment the last item is checked off, it’s time to clean up and move on to the next project.

The Final Walkthrough

You will have undoubtedly spent a lot of time walking around your project when nobody is there looking at the progress as it unfolded but it’s still important that we do a final walkthrough together and make sure everything is to your satisfaction. This is a great time to ask questions about that other project that’s been in the back of your mind and get an idea of what the cost might be and when you would like to do it.

All of our work is guaranteed with a standard warranty that covers any problems with workmanship for up to 2 years. We take pride in our work and back it up 100% so if there is ever a problem, no matter how small, don’t hesitate to call us and give us a chance to fix it.

Reach Out To Us

Give us a call or fill out the form below and we will be calling you as soon as we can to talk about your project.

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Get in Touch

Reach out to us, describe what you are trying to create and we will provide a detailed explanation of how we can make your dream come true!

Let's Talk About Your Vision

Describe what you are trying to create and we will provide a detailed explanation of how we can make your dream come true!