Park Square Building poised for office-to-apartment conversion

An 11-story block-long office building at 31 St. James St. in the Back Bay, known as the ‘Park Square Building,’ is now poised to be redeveloped into 490 apartments, The Boston Globe first reported last week.New York-basedVanbarton Group has proposed what would become Boston’slargest office-to-residential conversion project, entailing the redevelopment of the 540,000-square-foot property located on St. James Street between Arlington and Berkeley streets. If approved, the projec