Envelope takes its name from the tightly restricted building envelope generated by the local zoning laws. The form of the building represents the maximum buildable volume (length x width x height + balcony) and stands as a physical manifestation of local zoning regulations.
The project is guided by three key components. First, the project is located within a complex zoning ordinance overlay called PD 193. Second, the program called for a building requiring little or no maintenance. Third, the program also offered a limited construction budget of $150 per square
foot.
The plan of the building divides the buildable space into three equal units. Each unit is further divided into a sequence of openings and planes, organized by a rigorous geometric ordering system based on the panel width of the exterior standing seam metal cladding.
The materials and construction type allow the building to express itself honestly while requiring minimal long-term maintenance. Repetition of building systems and a limited number of construction trades allowed the costs of the project to be kept low without sacrificing craftsmanship.