The master plan for Alexandria Real Estate’s Watertown Mall Transformation was approved by the Planning Board. (Courtesy of Alexandria Real Estate)
The basic plan for remaking a large portion of Arsenal Street, including the Watertown Mall, has been approved by the Planning Board. Before the multiple lab buildings, residential units, retail, and garages can be built, however, developers will have to come back for approval of each building. Almost all of the project falls within Watertown’s Regional Mixed Use District (RMUD), which allows for additional height and density that most of the town but requires a master plan to be approved. On Nov.