<div dir="ltr">I haven't seen this discussed here. Perhaps I missed it. <br><a href="http://www.preservationnation.org/information-center/sustainable-communities/green-lab/lca/The_Greenest_Building_lowres.pdf">http://www.preservationnation.org/information-center/sustainable-communities/green-lab/lca/The_Greenest_Building_lowres.pdf</a><br><br><div style="font-size:46.5507px;font-family:sans-serif"><font size="4">The Greenest Building: Quantifying the Environmental Value of Building Reuse</font></div><br>"For those concerned with climate change and other environmental impacts, reusing an existing building and upgrading it to maximum efficiency is almost always the best option regardless of building type and climate."</div>