PITTSFIELD â Except for a few tangibles, like site plans and environmental assessments, visible signs of development at the William Stanley Business Park had been few and far between, until last year. The biggest achievement was the opening of the much-anticipated $13.8 million Berkshire Innovation Center, which officially was dedicated last year, two weeks before the COVID-19 pandemic shut down the local economy. But, the momentum appears to be continuing. This year, the city of Pittsfield and the Pittsfield Economic Development Authority have received $1.1 million in state money to prepare the parkâs largest building site for development, and construction on a 20,000-square-foot marijuana-cultivation facility is expected to begin this summer, on a parcel located across from the center.