The David and Lucile Packard Foundation Headquarters: plenty of natural daylight comes into the Main Hall from the adjacent central courtyard and eliminates the need for lighting on most days. Note the chilled beams in the ceiling over the seating area. (Photo by Jeremy Bittermann)

The David and Lucile Packard Foundation Headquarters: plenty of natural daylight comes into the Main Hall from the adjacent central courtyard and eliminates the need for lighting on most days. Note the chilled beams in the ceiling over the seating area. (Photo by Jeremy Bittermann)

The David and Lucile Packard Foundation Headquarters: plenty of natural daylight comes into the Main Hall from the adjacent central courtyard and eliminates the need for lighting on most days. Note the chilled beams in the ceiling over the seating area. (Photo by Jeremy Bittermann)