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 DirectorBuildingGreen, Inc.
LEEDuser Moderator
183 thumbs up
April 16, 2020 - 1:05 pm
Agata, if your building qualifies as a BD+C project, you can pursue this credit.
Dirk Kestner
PrincipalWalter P Moore
26 thumbs up
April 16, 2020 - 3:35 pm
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 DirectorBuildingGreen, Inc.
LEEDuser Moderator
183 thumbs up
April 17, 2020 - 9:12 am
For more on the updates, also see our LEEDuser guidance here: https://leeduser.buildinggreen.com/credit/NC-v4/MRc1#tab-bev