415 Mission Street, San Francisco, California, USA
Architect: Pelli Clarke Pelli
Developer: Boston Properties Hines
Area: 1.35 million sq. ft.
Live construction video feed
Image copyright: Pelli Clarke Pelli Architects
From the architect:
"The tower takes the timeless form of the obelisk and has a slender, tapering silhouette. The walls are composed of clear glass with pearlescent white, metal accents. These horizontal and vertical accents gradually taper in depth to accentuate the curved glass corners. The walls rise past the top floor to form a transparent crown that appears to dissolve into the sky. Carved into the tower top is a vertical facet that will be lit at night. Like the transit center, the design for the tower emphasizes sustainability and has a LEED Gold objective."