Delivering the highest quality results at the best possible value.

Douglass Design + Build (DD+B) is an experienced, full-service construction and design firm serving the Greater Los Angeles area. Providing the expertise of a large general contractor with the personalized approach of a smaller firm, we forge lasting partnerships built on honesty, collaboration and results.

Our team has collectively delivered more than $1B in commercial, mixed-use and multifamily projects of all sizes across Southern California. This experience, combined with our extensive in-house resources, allow us to take on all types of commercial, mixed-use and residential projects – no matter the scale.

At DD+B, our work is guided by three simple tenets: We deliver quality. We deliver value. And we deliver on our promises.

Connect with DD+B


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Our first step is to understand your project objectives and constraints. From there, we build a realistic timeline, construction schedule and budget that addresses your goals and unique circumstances.

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Before ever breaking ground, our expert team conducts constructability reviews to maximize efficiency and troubleshoot potential issues before they become problems.

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Throughout construction, our leadership team is personally involved to ensure all work is impeccably executed. We’re able to identify opportunities to reduce costs and project duration without ever sacrificing the quality or design intent of the end product.

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We stand by our work and our people. We always go the extra mile to make sure you’re happy with the result now and down the road.

OUR FOCUSIndustry Specialties

We specialize in all types of commercial, mixed-use and multifamily work. While we typically serve clients in the Greater Los Angeles area, our expansive in-house resources give us the flexibility to partner with clients across California.



From large-scale tenant improvement and renovation to ground-up construction, no project is too complex – in fact, the unusual or complicated projects are where we really shine.


Mixed-Use & Multifamily

Mixed-Use & Multifamily

At DD+B, we bring the expertise, the resources and the experience to get your multifamily or mixed-use project completed on time and within budget.


Structural & Seismic

Structural & Seismic

Drawing on our background in structural concrete and steel, we’ve earned a reputation for the skill we bring to executing complex structural and seismic retrofitting work.


Educational & Institutional

Educational & Institutional

We understand the unique considerations that come with working in a campus setting, and bring the expertise to deliver next-generation environments with care.



Great partnerships are built on trust. We earn that trust every day by delivering on our promises. But don’t take our word for it. Here’s what our clients have to say.

DD+B is very oriented to meeting and exceeding the client and owner’s expectations for quality, budget and schedule. We have found that the culture of DD+B is very consistent, and provides a team effort to complete projects on time and on budget. Kevin’s team knows when to ask questions and when to move ahead. There is never a ‘problem’ on a project only a challenge requiring a solution. These solutions are found through dialogue between the Architect/Designer, the Tradesmen, and the Client. Kevin demonstrates a thorough understanding of construction and the construction process and his work is well coordinated and well organized. His project management and attention to detail are assets throughout the project. Catherine McKenna, Principle, Catherine McKenna Architects, LLP

Douglass Design + Build was a pleasure to work with on our retail build out. The condition of the building and municipal codes created several challenges for the master plan. In each instance, Kevin and his team came up with realistic solutions to keep the project tracking on time and on budget. The transformation of the space from a former municipal garage to a modern, cutting edge retail operation was truly amazing. Our client and all involved in the project are grateful for the professionalism and quality of workmanship provided by Kevin and his team at Douglass Design + Build. Timothy Johnson, Retail Services Executive, Giant Bicycle USA
Douglass Design + Build took a blank warehouse and made our vision for a world-class office and kombucha manufacturing site a reality! Kevin and his team supported us in every way with limited change orders and great-communication. Kevin offered a lot of great ideas to enable Health-Ade to move to the next level without simply ramping up cost. We’re so thankful to DD+B and we couldn’t be happier with the process and outcome.Justin Trout, COO/Co-Founder, Health-Ade, LLC

As a structural engineer, I consider DB+B a partner in always delivering client-focused high-quality results. Because the DD+B team thrives on solving problems, I strongly prefer having them as part of any challenging project. Not only can I rest assured the construction will be of very high quality, but also that I have a collaborative partner who will make my design even better. It is a joy to work with the DD+B team. Jim McDonald, Associate Principal, Simpson, Gumpertz & Heger


Let’s start the discussion!

Want to learn more about how we can support your next project? Drop us a line.