I have a urban site project that has had 2 prior buildings before this one. The most recent prior historical use was all impervious surfaces. Is there measurement for net improvement from most recent use or just the % and the "undeveloped Eco-system" equivalent.
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Theresa Backhus
Sites Technical Specialist, LEEDUSGBC
66 thumbs up
September 4, 2012 - 4:37 pm
Hi Nancy,
The pilot credit does not measure the net improvement from the site's most recent use. The goal is to analyze and mimic the natural site hydrology conditions (as much as possible), meaning the conditions found prior to any development. In your case, it sounds like it might be the site conditions prior to both of the buildings (if there was no development or grading before that).
I hope this answers your question. If you have additional questions about the methodology listed in this pilot credit, I would be happy to help.