Watertown’s Open: Hear About the State of Development in Town & Network

A panel of local experts will discuss the future development in Watertown. See more details in the announcement provided by the Watertown Business Coalition. Watertown’s Open

Hear about the State of Real Estate and Development in Watertown during the event at the Italian Design Interiors showroom in Watertown Square presented by the City of Watertown, Little Local Conversations, and the Watertown Business Coalition. The free event will take place on Thursday, Nov. 13, from 5:30-7:30 p.m. at Italian Design Interiors, 19 Spring St.

Watertown Mall Property Sold, Plans for Life Science Redevelopment Appears to be Over

(UPDATED on Oct. 21, 2025 at 2:20 p.m.: The first version incorrectly noted that the whole 24 acres of the proposed project were sold. Only 550 Arsenal Street were sold). Plans to turn the Watertown Mall and other properties on the north side of Arsenal Street into a life science campus appear to be over after the owners of the property sold to a Newton-based development firm. The Boston Globe reported that Alexandria Real Estate sold the Watertown Mall property in Watertown, which is located at 550 Arsenal St., to National Development for $100.25 million.

City Looking at How to Create Public-Private Partnership to Redevelop Watertown Square Parking Lots

An illustration from the Watertown Square Area Plan with the municipal parking lot behind CVS outlined in red. The City Council is considering redeveloping that area. City Councilors will be wearing a second hat when it comes to the redevelopment of the parking lots behind CVS, the Watertown Library and perhaps others in Watertown Square. On Sept. 2, consultants from Innes Land Strategies Group spoke to the Council about their role as a Redevelopment Authority, and some of the options for making the projects a reality.

Two Multistory Residential Projects Proposed in New Watertown Square Zoning

An illustration of the proposed residential building at 108 Water St. (WSQ Development LLC)

Two residential projects have been proposed in Watertown, south of the Charles River and another in a vacant site on Mt. Auburn Street. The projects are among the first that would be built the new Watertown Square Zoning districts created so the City would comply with the MBTA Communities Law. The first project in the new zones was a five-unit residential building at 75 Spring St., which is located in the WSQ1 zoning, which allows 3+ story (four stories with a stepped back fourth story) projects.

Planning Board Approves Master Plan for Watertown Mall Transformation

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.

REMINDER: Hear About Proposed Project on Cannistraro Site in West Watertown

Broder/CBTAn illustration of the potential designs for a project at Pleasant Street and Rosedale Avenue, which would include a life science building, a garage and retail space. The developers of the proposed project on the Cannistraro site on Rosedale Road will hold a community meeting on March 20. The project includes multiple life science lab buildings and a garage on the Westside property. Click here to see the documents submitted to the Planning Department (scroll down to Click Here for Applications, Reports, Plans, and other project documents). Dear Community Member:

Please join Broder (www.broder.com) for a presentation of its plans to redevelop the site at 275 & 313 Pleasant Street, 80 Rosedale Road, and 60 Acton Street.