The first large scale app I did we got offices in a building that used to have telco equipment in it. There wasn’t enough power or cooling to run about a rack worth of equipment split across several. It basically had a mini-split for AC. We had to bring in new wiring and run a glycol line to a condenser on the roof, and the smallest unit we were willing to pay for was too big so we had to knock out a wall to tack a reasonable sized office onto the end to get the volume large enough. So much wasted space for the amount of equipment in there.