Since 1907


Years in Business


California Infrastructure


Awards Won


Rock Solid Reliable

We are a fifth generation family business passionately committed to our craft, fiercely loyal to our clients, and grateful for our community. We’re honored to have helped shape California’s infrastructure over the last century and we are determined to keep building for its future.

Real Builders

We are a self-performing builder — a rarity among large commercial contractors today. We don’t just add a layer of management to your project, we figure out the most efficient building solutions and implement them with our own skilled teams.


General Contracting

We are here for one purpose: to build. We typically self-perform 800,000 craft hours annually, leveraging our field expertise and deep project experience to hand deliver real solutions to our clients. 


Our subject matter experts provide leadership to improve project outcomes.  Our precon services are so valuable that we have never not been awarded a construction contract after providing preconstruction services.

Collaborative Delivery

70% of our work is Collaborative Delivery, such as design build. We enthusiastically endorse and recommend alternative delivery approaches that foster teamwork and save time and money.

Agile & Competitive

Overaa’s depth of experience enables us to serve diverse markets including commercial, industrial, education, municipal infrastructure, healthcare, life sciences and multi-unit housing. Performing a mix of project types and delivery methods keeps us sharp and on the cutting-edge. 


Overaa is a recognized leader in the construction industry for worker safety and health. Logging 782,153 average annual craft hours, we have been awarded the Construction Employers Association (CEA) President’s Safety Award annually for the past 10 years.



Urban Tilth Farm Topping Out

With the final white oak truss in place, the Richmond community celebrates the topping out of the Urban Tilth North Richmond Farm. Urban Tilth is

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Safety Award at LBNL

Overaa was recognized by Lawrence Berkeley National Laboratory for achieving 50,000 safe work hours on the Welcome Center & Transit Hub project last week. The

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