Current Proposals

133 Boston Post Road

Boston Properties has proposed a housing development and additional office space for the Biogen Idec/Monster site at 133 Boston Post Road. This proposal has been discussed with the Planning Board, Housing Trust, Board of Selectmen, School Committee and the Zoning Board of Appeals.

This project would help Weston meet its 10% affordable housing requirement and would help meet the housing needs and strategies identified in the Housing Production Plan. The Development Agreement for the site between the Town and Boston Properties will need to be amended, which will require approval by Town Meeting. 

Planning Board Negotiations

The initial proposal by Boston Properties called for 345 rental units with 25% set aside at the 80% area mean income (AMI) along with additional commercial office space. The development itself was identified and discussed as a friendly partnership development in the Housing Production Plan; however, the total unit count and size of the commercial space are larger than desired or outlined in the HPP, which prompted negotiations through the Planning Board.

Several meetings with Boston Properties and the community have been held since May of 2017 and the Planning Board has enlisted input and analysis from engineering and financial consultants for traffic impacts and a fiscal impact analysis of the site's development.

Boston Properties presented new concept sketches to a neighborhood meeting on March 6th for a 275-unit project with 195,000 s.f. of office space, which can be viewed online here.

Planning Board Recommendations

The Planning Board met with the Board of Selectmen on March 27th to give its recommendations. Unfortunately, the Planning Board and Boston Properties were unable to reach an agreement on a development size that would be mutually consistent with the goals of both Weston and Boston Properties. Details are included in the March 26th memo to the Selectmen, below.

Next Step

Modification to the Development Agreement will need the approval of Town Meeting, which is not coming to the 2018 Annual Town Meeting. Since a mutually agreed upon development size could not be reached in time for this Town Meeting, the Board of Selectmen is currently assessing the situation. To follow progress, subscribe to receive agenda and minutes from the Board of Selectmen.

Background Information
Conditions of Support

The Selectmen sent a conditional letter of support to MassHousing in 2016, requesting further investigation into school, traffic and financial impacts to the Town, as well as a request to reduce the total number of units and to find an appropriate access road for the development. These conditions were also outlined in the First Amendment to the 2008 Declaration of Restrictions with  Boston Properties.

The site access is currently proposed for Jones Road in Waltham, which is being heard through its city council. The project will continue through the public process in Weston through the Planning Board, as site issues are further discussed, and the Zoning Board of Appeals during the Comprehensive Permit hearings.

Development Plans

Details of this proposal can be found under the Zoning Board of Appeals or by following this link. To follow the various public meetings of this project, residents should follow the Planning Board, Zoning Board of Appeals, and Board of Selectmen, in addition to Latest Town News.


The traffic and financial impact studies have been conducted and are below. An alternate access road to the residential development has been proposed as Jones Road in Waltham, which is under city council review.  The Development Agreement with Boston Properties will also need to be modified, which will require a vote of Town Meeting in order for the proposal to move forward.

To follow progress of this review: 

Updates and Comments

Boston Properties has set up an online site with meeting updates and a comments section so residents can directly ask questions of the developer. Additionally, comments and concerns from abutting neighbors have been gathered that the Planning Board is reviewing. 

Unsupported 40Bs Before the Zoning Board of Appeals

There are currently three 40B projects in Weston that do not have the support of the Town but have applied for a comprehensive permit. Subscribe to receive notification of Zoning Board of Appeals agendas to follow progress.
  • 104 Boston Post Road - (150 rental units on 2.1 acres) ZBA denied the permit on Oct. 22, 2017. The decision has been appealed.
  • 269 North Avenue - (16 rental units on 1.49 acres). Comprehensive Permit decision received May 3, 2017. The decision has been appealed.
  • 255 Merriam St./11 Hallett Hill Rd - (10 ownership houses on 2.94 acres). Comprehensive Permit decision received Dec. 2, 2016. The decision has been appealed.