Jarret Bencks photos
The fourth and final building of the first phase of Assembly Row ceremonially broke ground Thursday. The new building will feature 100,000 square feet of office space and 30,000 square feet of retail space. Above, Mayor Joseph Curtatone speaks to a crowd gathered under a tent at the site of the new building on Thursday morning.
An artist rendering of the building. The first phase of the project, which includes about 450 apartments, an AMC movie theater, and 330,000 square feet of retail space, is expected to be completed in 2014. A new MBTA Orange Line stop is also expected to be opened next year. A 6-acre park along the Mystic River is planned to open this summer.
A crowd gathered under a tent for the groundbreaking on Thursday morning. When completed, the project as a whole is expected to include 800,000 square feet of retail space, about 1.75 million square feet of offices, and more than 2,000 apartments.
Mayor Joseph Curtatone, US Senator William "Mo" Cowan, Donald Briggs of Federal Realty, and other dignitaries shovel some dirt. Below is one of the other three buildings in the first phase of the project.