Can Option 4 LCA be selected for a project of an existing building which is being renovated and with substantial demolition works? Is it still allowed to use Option 4 if a bit more than 25% of the existing structure is reused?

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Paula Melton

Editorial Director

BuildingGreen, Inc.

LEEDuser Expert

159 thumbs up

Thu, 04/16/2020 - 17:05

Agata, if your building qualifies as a BD+C project, you can pursue this credit.

Dirk Kestner

Principal

Walter P Moore

LEEDuser Basic Member

19 thumbs up

Thu, 04/16/2020 - 19:35

Also, the LEED v4.1 revisions to the WBLCA credit include a 4 point WBLCA pathway that serves as a "bridge" between the area takeoff based Option 3 and WBLCA Option 4 in v4.0. This new "option 4 / path 4" allows teams to use WBLCA and be recognized for reuse / salvage strategies. More information can be found at https://www.usgbc.org/leed/v41

Paula Melton

Editorial Director

BuildingGreen, Inc.

LEEDuser Expert

159 thumbs up

Fri, 04/17/2020 - 13:12

For more on the updates, also see our LEEDuser guidance here: https://leeduser.buildinggreen.com/credit/NC-v4/MRc1#tab-bev

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