MANSFIELD - Highland-March Executive Suites has more than doubled the size of its offices in Cabot Business Park.

The additional space includes 21 individual offices and a large conference room, increasing the overall size to 22,000 square feet and 46 offices.

Previously, the suites totaled 9,000 square feet of office space.

Highland-March opened its Mansfield doors in 2005.

Located in Cabot Business Park, the office business center is housed in a building that had once been occupied by Motorola Corp. "When the additional space on this floor became available, we decided to go forward," said Leslie Libeskind, president of the firm.

"This Boston-Providence corridor is growing quickly. We get many calls each week asking about office availability in the region."

Libeskind, who owns and manages executive office parks in other Massachusetts locations, said that activity within Cabot Business Park and the surrounding area has increased dramatically over the last couple of years, making this an ideal time to expand.

"With proximity to Routes 95, 495, and 140, in addition to ever-increasing commercial real estate prices in both Boston and Providence, Mansfield has become a very desirable location for many businesses," she said.