LEED Rating System: LEED-NC


Date Completed: August, 2009

Completed in August 2009, 641 Huntington Avenue is a 25,000 square foot building in Boston Massachusetts, used as office and meeting space by the Department of Social Medicine within the Harvard Medical School (HMS).

The project involved an extensive renovation that combined 641-643 Huntington Avenue. The wood framed masonry façade was fully restored with new windows, and a comprehensive upgrade to the entire roofing system was undergone. Additional site improvements were made to the exterior of the building, which include new paving and landscaping. The interior of the building received a complete fit-out to all of the existing office spaces. A new 8-stop elevator was installed, while new mechanical, electrical, plumbing and fire protection systems were added throughout.

In support of Harvard’s goal to reduce greenhouse gas emissions 30% below 2006 levels by 2016, inclusive of growth, HMS and the project team were committed to sustainability throughout the duration of the project. This helped to guide decision making and inform the selection of materials, as well as the mechanical, electrical and plumbing (MEP) systems. Ultimately, 641 Huntington Avenue was awarded a LEED Gold Certification under the LEED for New Construction version 2.2 (LEED-NC) rating system.

Project Highlights:

  • 95% of on-site generated construction waste was diverted from landfills.
  • 36% reduction in overall energy consumption compared to a code compliant base case.
  • 20% reduction in lighting power density was achieved.
  • 37% reduction in water consumption from bathrooms and kitchenettes compared to a code compliant base case.
  • 76% of the wood purchased for the project is certified by the Forest Stewardship Council (FSC) to have come fom sustainably managed forests.
  • 26% of the value of materials used in the project consist of materials with recycled content.

Read the full case study