At many of the companies I've worked for that have large scale capital equipment I had the responsibility to create floorplan layouts and building modifications for equipment placement. This is called Site Planning. I would layout equipment to fit within building regulations. I would layout electrical and plumbing placement schematics and add ventilation to existing vent systems in the buildings. Most of this type of design was for medical and semiconductor companies. GE Medical Systems, Accuray, Applied Materials, and Schlumberger.