Summer 2026
At Addition Building & Design, building homes is more than a service—it's a long-term commitment rooted in experience, trust, and family. At the center of the company is a true father-daughter partnership: Mike Ross and Christine Ross, who together bring both decades of construction expertise and a forward-thinking approach to the evolving needs of homeowners in Los Angeles.
Mike Ross, founder and master builder, has spent over 40 years in construction, with more than 20 of those years dedicated specifically to building in Los Angeles. His reputation is built on deep, hands-on knowledge—from structural framing to complex hillside construction—and an unwavering commitment to quality. Having built thousands of homes, remodels, and additions, Mike understands not just how to build, but how to build right in one of the most demanding and highly regulated environments in the country.
Working alongside him is his daughter, Christine Ross, who leads sales, marketing, and client experience. Christine has played a pivotal role in elevating Addition Building & Design into a more modern, transparent, and client-focused company. She is often the first point of contact, guiding homeowners through the early stages of their project, helping them clarify their vision, and setting the tone for a collaborative and well-managed process.
Christine has also helped bring the company to the next level through the integration of advanced project management tools, including Buildertrend. By implementing systems like this, clients are able to track progress in real time, review updates, communicate with the team, and stay fully informed—even if they are out of town. This level of transparency has become a defining feature of the company's approach.
Buildertrend is a cloud-based construction management platform designed for residential home builders, remodelers, and specialty contractors. It combines project management, customer communication, scheduling, financial management, and sales tools into a single system, helping construction businesses manage projects from lead to final payment.
Hillside experts
Together, Mike and Christine have built a reputation as true hillside experts. Their extensive experience in hillside construction includes complex grading, slope stabilization, retaining systems, and engineered foundation solutions designed to maximize safety, stability, and long-term performance. They work closely with geotechnical engineers and structural professionals to deliver homes that are built to withstand the unique challenges of Southern California's hillside terrain.
Their extensive Los Angeles experience gives them a distinct advantage in navigating challenging terrain, stringent building codes, fire-resistant construction, and energy-efficient building practices. They understand the expectations of local building departments and the attention to detail required to successfully deliver complex projects. Their longstanding relationships with Los Angeles City and Los Angeles County Building and Safety staff help foster clear communication, streamline plan reviews, and resolve permitting issues efficiently—keeping projects on schedule and reducing unnecessary delays.
Long-term partners, not transactional builders
But beyond experience, what truly sets Addition Building & Design apart is their commitment to their clients. Mike and Christine are not transactional builders—they are long-term partners. They take pride in being present, responsive, and deeply involved in every project, ensuring that clients feel supported from the first conversation through completion.
In a market increasingly filled with out-of-area builders looking to capitalize on demand, Addition Building & Design stands apart as a company that has been here, understands the landscape, and plans to be here for the long haul. For Mike and Christine Ross, every project is personal—and every home is built with the intention of lasting for generations.