100 College Street

100 College Street represents the first phase of the City of New Haven’s Downtown Crossing initiative. Winstanley designed and constructed the 513,000 sf, 14-story office/laboratory building. 100 College is complete with a rooftop garden that meets certification under the Leadership in Energy and Environmental Design (“LEED”) to a Silver Standard level, and is accompanied by an 850 space parking garage.

The project at 100 College featured a complicated construction coordination effort as the site was surrounded on all four sides by city streets. In addition, there was construction of, and over, two tunnels that provide access to the lab/office building, the 100 College Street parking garage, and the adjacent Air Rights Garage. In addition, a State highway (Route 34) had to be shut down and rerouted. Lastly, Yale New Haven Hospital’s mission critical delivery and emergency vehicle access had to be maintained.

The building construction and related extensive off-site improvements commenced in mid-2013 and were completed in July 2015. At the time of construction, 100 College Street was Alexion Pharmaceuticals, Inc.’s new worldwide headquarters (NASDAQ: ALXN). The property is now fully leased to Alexion and Yale University. Since 2000, Winstanley has owned, operated, and developed over 2 million square feet of lab, office, and retail properties in the New Haven market, including 300 George Street, the 520,000 SF redeveloped office and lab building next door.