Combined Properties held a ribbon-cutting ceremony to celebrate the completion of the Exchange Street Apartments, a 210-unit development at 100-150 Exchange St. The complex, located near the MBTA Orange Line station, offers a mix of studios and one- and two-bedroom units, along with common amenities such as a fitness center, a business center, and a media center. The development also features onsite parking and 1,610 square feet of available retail space. Rents range from $1,925 to $3,195. Combined Properties held a separate ceremony to mark the laying of the last beam atop the office building it is constructing at 295 Canal St. The 55,117 square foot structure will house offices on all five floors, with retail on a portion of the first floor, along with 178 on-site parking spaces.John Laidler can be reached at email@example.com.