Alexandria Real Estate Equities Inc. has purchased a lab and office property from Skanska USA Commercial Development in Cambridge for $94.5 million.

The three-story building at 150 Second St. in Kendall Square totals 123,000 square feet of Class A construction. The property is currently 15 percent vacant.

Tenants include Foundation Medicine Inc., a molecular information company that uses genomic analysis to help doctors identify cancer treatments, that occupies 61,591 square feet. Bluebird bio, a clinical-stage biotech firm focusing on gene therapy, will occupy 43,586 square feet beginning in January 2014.

The property’s construction and design achieved a LEED Platinum designation from the U.S. Green Building Council. To reduce water waste, the project includes an underground rainwater storage and filtration system that captures and treats stormwater runoff from 90 percent of the annual rainfall and removes at least 95 percent of total suspended solids. That way, the onsite landscaped rain garden with native vegetation does not require irrigation. In total, water consumption at the site is reduced by approximately 250,000 gallons per year.

"Skanska is pursuing additional opportunities in the Boston area that will bring value to Boston’s residents and businesses, while also creating healthy, efficient space for companies and tenants," Shawn Hurley, executive vice president of Skanska USA Commercial Development in Boston, said in a statement.