At the heart of the Potrero Power Station redevelopment, one of San Francisco's most significant urban transformation projects, Webcor is delivering a clinical and life sciences building that is anything but typical.

Below grade sits a Proton Therapy Center, one of only three such facilities on the West Coast and among the most technically demanding building types in healthcare construction. Proton therapy uses a focused beam to target cancer cells with greater precision and less damage to surrounding tissue than conventional radiation treatment. Delivering the infrastructure to support it requires exact structural tolerances, mass concrete for radiation shielding, and miles of underground conduit for utility feeds, all engineered with future equipment removal and replacement in mind.

Rising from that base is a multi-story structure housing UCSF clinical space on floors two through five, with a life sciences incubator occupying floors six through eight. The project is delivered through a P3 model on UCSF-owned land, with Associate Capital as developer, and designed by an exceptional team including Herzog & de Meuron, Stantec, and Flad, with structural engineering by MKA and MEP engineering by Interface Engineering.

Webcor entered the project late in preconstruction, inheriting an established subcontractor base and absorbing roughly 11 bought-out scopes, including Webcor Concrete, Southland, Cupertino, and the Malcolm Drilling/Silverado JV. The Hitachi-supplied proton therapy equipment sets the tolerance requirements that drive every structural decision in the building, making coordination between design, construction, and specialty vendors a defining challenge from day one. Construction is underway, with completion expected in late 2028.

‍