Cambridge Planning Board backs Biomed Realty zoning petition for 320 Charles with conditions

The Cambridge Planning Board voted 5-0 April 29 to recommend the City Council adopt a zoning petition by BMR 320 Charles LLC (BioMed Realty) that would create an East Cambridge Community Enhancement Overlay District to allow greater height and floor area at 320 Charles Street, with conditions the board said address community concerns.

The petition would permit up to a 2.8 floor‑area ratio and up to 65 feet of building height at 320 Charles if approved by special permit under the new overlay. The petitioner committed in public materials to a minimum 20% lot open space for projects seeking the overlay, a minimum of 14,000 square feet of open space facing Charles Street, and other dimensional stepbacks and setbacks shown in supplemental materials submitted April 18, 2025. The project team also identified proposed community benefit estimates, including about $20 million suggested for East End House and on the order of $10 million to the Affordable Housing Trust.

Why it matters: the site is a roughly 2.4‑acre former industrial property adjacent to Ahern Field and residential neighborhoods. Supporters argued the overlay and accompanying design changes would turn a vacant, underused property into an active, better‑designed building and could fund a long‑needed replacement of East End House. Opponents said the change amounts to spot zoning and warned about scale, shadows on Ahern Field and neighborhood impacts.

Petition and project details

BioMed Realty representatives described extensive community engagement and said the current proposal is smaller and more carefully massed than an earlier six‑story concept. "I'm really excited to share our proposal for 320 Charles," Sal Zinno of BioMed Realty told the board. Architect Kishore Varanasi (CBT) described a stepped massing with three‑ and four‑story faces facing the field and courtyards and upper‑floor setbacks intended to reduce shadow effects. Jeff Roberts, director of zoning and development in the Community Development Department, told the board the overlay would permit increases in height and floor area only by special permit and that the planning board's role is to focus on zoning rather than the detailed community benefits package the council will consider.

Public testimony and community concerns

More than two dozen speakers addressed the board. Many — including union representatives and neighbors who worked with the project team — praised BioMed's engagement and supported the petition, and several urged that community benefit funds remain in East Cambridge to support East End House. Tim Ford, a retired member of Carpenter’s Local 328 and East End House board member, said of the organization, "This building has basically saved my life," and urged retention of benefits in the neighborhood. Susan LaPierre, chair of the East End House board of directors, urged the board to support the petition so the organization could secure funding to move to a modern facility.

Other speakers, including some abutters, opposed expanding zoning on the site. One speaker described the petition as "spot zoning" and urged the board to honor earlier East Cambridge Housing Overlay (ECHO) limits intended to protect adjacent residential streets. Several residents pressed for clarity that the April 18 supplemental materials — which added the stepbacks, setbacks and other dimensional clarifications — be the version transmitted to the council. Paul Cody, a member of a neighborhood subcommittee that worked with BioMed, told the board the April 18 amendment "is what we would like you to recommend to the council."

Board discussion and decision

Planning board members repeatedly said their charge was to evaluate the zoning text and map change, not the private community benefits contract. Board members praised the revised massing, the additional setbacks and the shadow analyses presented by the project team; several also urged stronger commitments on parking, activation of ground‑floor edges and accessible public restrooms facing the field.

The board voted to recommend the petition be adopted as amended in BioMed's April 18 submission, and it attached a set of clarifications and conditions: a recommendation that the City Council adopt the April 18 amendments; that the planning board recommend a cap on parking at 0.8 spaces per 1,000 gross square feet for development under the overlay; that open space required by the overlay be designed to be usable and functional for the public; and that city staff and the Law Department review the petition text and propose any ordinance edits needed for consistency with other zoning provisions. The motion was made by Ted Cohen and seconded by Mary Flynn and passed by roll call, 5‑0 (Ted Cohen, Mary Liedecker, Diego Macias, Ashley Tan and Chair Mary Flynn all voting yes).

Next steps

The petition will move to the Ordinance Committee and the City Council for consideration; BioMed noted it is scheduled before the Ordinance Committee on May 20. If the council approves the overlay, any future increase in height or floor area on the 320 Charles parcel would still require a Planning Board special permit and the project's site‑specific special permit process will address final design, open‑space programming, parking and transportation mitigation. The community benefits package — including the proposed East End House and Affordable Housing Trust contributions — will be negotiated separately between the developer, the city manager's office and the council.

Quotes

"I'm really excited to share our proposal for 320 Charles," Sal Zinno, BioMed Realty.

"This building has basically saved my life," Tim Ford, retired carpenter and East End House board member, describing the organization's role in the neighborhood.

"East End House is a cornerstone of equity and opportunity in East Cambridge," Susan LaPierre, chair, East End House board of directors.

Ending

The Planning Board recorded its recommendation at the April 29 meeting and transmitted its comments to the Council; Council and Ordinance Committee review are the next formal steps in the city's zoning and community benefits process. The Planning Board invited the public and project team to return for the project's special permit review if the overlay advances.