Research sponsored by Pankow Foundation and DBIA shows that
CM at-Risk is the most successful delivery method when measuring the number of projects that met or exceeded the original sustainability goal:
Using the metric of what percentage of projects achieved either their original LEED goal or higher, CM at-Risk was highest at 94% (Design-Build was 82% and Low Bid was 77%) and
Looking at the other way around, measuring the number of projects that came in LOWER than their original established goal, CM at-Risk was best at only 6% (Design-Build was 18% and Low Bid was 23%)!
Regarding the impact of the selection type on achieving sustainability, QBS was highest at 95% (Best Value was 87% and Low Bid was 78%).
Hopefully, this will be the beginning of many more research efforts that demonstrate the higher value that collaborative delivery methods can accomplish. Especially in these tough times, we need to help owners stay focused on maximizing value!