Adding renderings to my last post:
One 900+ footer (something we don't have yet)
Oceanwide Center - 910 ft
Source: Foster + Partners
One 800+ footer
Parcel F - 806 ft
Source: Hines
Two 600+ footers
Oceanwide Center - 636 ft
(see above)
Park Tower - 605 ft
Source: Park Tower at Transbay
500+ footers
Transbay Block 8 - 575 ft
Source: World Architects
524 Howard - 515 ft
Source: Socket Site
Mexican Museum + Condo Tower - 510 ft
Source: Handel Architects
And tons in the 300-500 range.