Sourcing of Raw Materials - Materials Reuse in a Historic Building

Ruth Kurz

West Coast Regional Sustainability Specialist

PERKINS EASTMAN

LEEDuser Premium Member

2 thumbs up

Project location :

U.S. and Canada

October 11, 2023

Hi all, we are in the process of completely renovating a historic office tower with the aim of achieving a LEED CS Gold certification. We intend to pursue 6 points for MRc1: Building life-cycle impact reduction. Can the project additionally obtain credits for material reuse under MRc3: BPDO- Sourcing of Raw Materials? We would like to know which systems and components we can consider for material reuse, such as structural elements, elevators, stone slabs, and lighting fixtures. Thanks for your input!

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Erin Heidelberger

Senior Environmental Performance Specialist

KPF

LEEDuser Basic Member

0 thumbs up

Thu, 03/20/2025 - 16:00

I cam here to ask a similar question! I am working on a rennovation of an office building that is exploring BD+C New Construction certification. I am struggling to figure out the Sourcing of Raw Materials credit: The "Building Life Cycle Impact Reduction" credit clearly states "However, reuse materials contributing toward this credit may not contribute toward MR credit- Sourcing of Raw Materials." I am assuming we would need to carefully allocate any reused materials between the credits to not double count.

I am also hoping to clarify in the case of a renovation to an existing building, what is the baseline for the total project cost. The language is "cost of the total value of permanently installed building products in the project " and does not stipulated newly installed building products - would we need to estimate the value of any of the existing materials in the building as well?

Erin Holdenried

Sustainable Design Director

Bell Architects

LEEDuser Premium Member

41 thumbs up

Mon, 08/11/2025 - 20:12

I have a similar historic project using Option 1 historic building reuse for the Building Life-Cycle Impact Reduction credit. Were either of you successful in taking credit for "reuse" of the existing building elements in the Sourcing of Raw Materials credit? And what was your strategy for costing these building elements?