MARLBOROUGH, MASS. — Construction management firm J. Calnan & Associates has completed the multi-phase renovation of Acosta's corporate headquarters in Marlborough. Construction at the 90,000-square-foot building consisted of two main components. The first was the renovation of the sales and marketing company's new space, consisting of a basement and four floors of the building. New offices and conference rooms were constructed, and multiple floors received new paint, carpet and millwork. The first-floor kitchen and cafeteria were demolished and a new cafeteria and dining lounge were constructed in the basement. Also, energy efficient windows, modern furniture and a new entry door were installed. The project architect was Nelson. The second component, which J. Calnan completed on behalf of building owner TA Associates Realty, consisted of the renovation of the space Acosta formerly occupied in the building. A new atrium was created out of the first-floor entry stair and mezzanine. The vacant first-floor kitchen space was remodeled into finished office space with executive offices, a conference room and a kitchenette. The common areas were also refinished and a new glass door entryway was installed.