The Physical Sciences Building (PSB) is the University of Massachusetts – Amherst's flagship building, supporting scientific discovery in organic chemistry, materials science and condensed matter physics. The 95,000 GSF facility is a keystone project for the State of Massachusetts, funded to strategically place the state as a leader in innovative Science related industries. The project also included the relocation and recreation of West Experiment Station, one of the University’s oldest building, built in the 1890’s. The site design resolved complex circulation issues and provided universal access to the two buildings as well as three existing buildings on site. The five buildings are interconnected on three different levels. A new bridge, accessible walkways that were once plagued by stairs and other obstacles were designed to achieve universal access.

The ‘Green Roof’ plaza constructed over new condensed matter labs, creates a new pedestrian destination at the heart of the 1,000,000 GSF science district. The project established the first phase of a unifying pedestrian campus connector ‘Ellis Way’
as identified by the University Master Plan.