Alexion expansion will double lab floor space

Alexion, AstraZeneca’s Rare Disease group, has announced plans to expand in New Haven by leasing space at the new bioscience tower currently under construction at 101 College St. The expansion will double its lab floor space and grow its research capabilities, according to the company, which has been on a hiring spree.

Developer Carter Winstanley is building the 10-story tower at 101 College St., and once finished, it will have roughly 500,000 square feet of laboratory, research and meeting space.