In connection with Facebook MPK 20, MPK 21 elaborates the connection of work and social spaces with the large, south-facing outdoor terraces. The 523,000 sq-ft building includes an open workspace elevated above a parking structure that houses offices, conference rooms, support spaces and amenities.

Loisos + Ubbelohde provided comprehensive daylighting, glazing and shade performance analysis, emphasizing visual comfort, sun control, and bird-safety. The design effectively delivers visually comfortable daylight illumination to workspaces and amenity areas, with coordinated lighting controls to harvest daylighting and reduce electrical loads.