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Sustainable building certifications, also known as green building certifications, recognize buildings and projects that have achieved environmental sustainability and energy efficiency standards in their design, construction, and operations. The linked map shows the locations of buildings and projects in Cambridge that have been certified under one or more of four sustainable building certification programs.

Raymond Park, located at 106 Raymond Street in Neighborhood Nine, is scheduled for renovations beginning in November 2025. Planned improvements include: Improved circulation and more accessible pathways New playground equipment An expanded basketball court Drainage improvements and rain gardens Additional seating and gathering areas New trees and plantings Learn more about the community and design process here.

When a beloved apple tree was removed as part of the reconstruction of the City of Cambridge's Tobin Montessori and Darby Vassall Upper Schools complex, cuttings from the tree were saved. A new exhibition at Cambridge Arts’ Gallery 344 shows how “The Community Grafting Project,” a public art project the city has commissioned from the architectural and design studio TSKPxIKD, is giving the original tree new life.

Harvard Book Store and the Cambridge Public Library welcome Sahil Bloom—inspirational writer, owner of SRB Holdings, and content creator, captivating millions of people every week through his insights and biweekly newsletter, The Curiosity Chronicle—for a discussion of his debut book The 5 Types of Wealth: A Transformative Guide to Design Your Dream Life. Registration is required.

Come try your hand at making a beautiful pin or magnet! Draw your own design, and learn to use our button making machine. Each attendee will have the opportunity to make one or two printed designs as well. This event is recommended for school-age children. No registration necessary - just drop in anytime during the event (while supplies last).

The Cambridge Community Development Department, in collaboration with other city departments and guided by the Cambridge community, will craft a vision for the future of Mass Ave between Cambridge Common and Alewife Brook Parkway. The planning study will address topics of land use, urban design, housing, climate resiliency, small business support, mobility, and public space, as well as zoning recommendations for future development.

It's a monthly block party! Join friends to design and build amazing LEGO structures. Let your imagination run wild! For children ages 5 and up (children under age 7 must be accompanied by a caregiver). The library has plenty of LEGO pieces, so you don't need to bring your own. For more information, please contact the Central Square Branch Library Children's Room at 617-349-4012.

It's a monthly block party! Join friends to design and build amazing LEGO structures. Let your imagination run wild! For children ages 5 and up (children under age 7 must be accompanied by a caregiver). The library has plenty of LEGO pieces, so you don't need to bring your own. For more information, please contact the Central Square Branch Library Children's Room at 617-349-4012.

It's a monthly block party! Join friends to design and build amazing LEGO structures. Let your imagination run wild! For children ages 5 and up (children under age 7 must be accompanied by a caregiver). The library has plenty of LEGO pieces, so you don't need to bring your own. For more information, please contact the Central Square Branch Library Children's Room at 617-349-4012.

It's a monthly block party! Join friends to design and build amazing LEGO structures. Let your imagination run wild! For children ages 5 and up (children under age 7 must be accompanied by a caregiver). The library has plenty of LEGO pieces, so you don't need to bring your own. For more information, please contact the Central Square Branch Library Children's Room at 617-349-4012.