Hines Global REIT has acquired the Campus at Marlborough, a four-building complex with an undeveloped land tract approved for 650,000 square feet of development, in Marlborough for an undisclosed sum.

The seller was Bel Marlborough I LLC and Bel Marlborough II LLC. The Boston office of international real estate firm Hines will assume property management responsibilities on behalf of Hines Global REIT, according to a statement.

Completed in 1999, the two-, three-, four- and six-story buildings contain a total of 532,246 square feet. The complex includes a full-service cafeteria, fitness center and conference center with a 300-seat auditorium.  The property is 100 percent leased on a long-term basis to tenants including Hologic, Hewlett-Packard and Wellington Management.

"This is the dominant Class A property in the Interstate 495 submarket due to its unique setting, unparalleled building design, infrastructure and amenity base," said Hines Senior Vice President David Perry.  "With the additional land, we have the opportunity to expand the campus to accommodate our existing tenants’ growth needs as well as other companies seeking premium quality office space."

Hines Global REIT Inc. is a Houston-based, public, non-listed real estate investment trust sponsored by Hines. Hines Global REIT commenced its $3.5 billion initial public offering in August, 2009, and has raised more than $825 million. It invests in commercial real estate properties in the United States and internationally.  

The Campus at Marlborough represents the tenth acquisition for Hines Global.  Recently, the company also acquired an office property at 250 Royall St. in Canton.