"Cloud Code" in the City of Houston Permitting Center is a conduit and real-time display of the occupancy, activity, and air quality in the building. The interaction of occupants within the physical space of the public areas is measured and displayed as civic art. A rear-projection display of animated graphics is generated by a network of meshed micro-sensors housed in custom fabricated enclosures. The occupants feed data to processing software that Metalab coded for the project. The activity creates a cloud-like indication of indoor air quality in the first floor public area of the building. In addition to air quality and occupancy, other qualitative aspects of the building such as movement and ambient sound are graphically represented in an abstracted floor plan.