Month: September 2026

I wrote about LEED v5 O+M’s move away from the Arc Performance Score recently, and the piece before that covered v4.1 BD+C. This one closes the series out with the version most existing buildings pursuing LEED right now are actually still…

I wrote recently about what changed in LEED v5 BD+C, and the question underneath that piece keeps coming up in real conversations: if v5 exists, why would a project team still register under v4.1? The honest answer is that plenty of…