L&B Realty Advisors, an employee-owned, SEC-registered real estate investment advisor headquartered in Dallas, has purchased 1050 Massachusetts Ave. in Cambridge, MA from Putnam Circle Associates for an undisclosed amount.

The property is a six-story, 62,474-square-foot office and retail building located adjacent to Harvard University and blocks from the MBTA-Harvard Square station in Harvard Square.

Developed in 1974 by current owner Thomas…