"The Transbay Tower will have concave curved massing in plan and in section with glass and metal wall on all four sides. The tower tapers as the building rises, beginning at a height of about 380 feet. From there, the exterior walls will slope gently inward on all four sides, giving the building a curving, obelisk-like form. The 172-foot horizontal dimension along each side of the ground floor will reduce to about 138 feet at the building roof, a height of about 920 feet."
http://www.socketsite.com/archives/2...ise_by_pl.html
even the
Council on Tall Buildings and Urban Habitat would agree.
damn.