San Francisco Transbay development

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Transbay Transit Center & Tower
The Transbay Transit Center & Tower, the tallest of the towers in the development
Information
Location Mission Street, San Francisco
Status Proposed
Opening 2013[1]
Use Office[2]
Height
Antenna/Spire 1,200 ft (366 m)[1]
Roof 1,025 ft (312 m)[3]
Floor count 80[1]
Floor area 1,600,000 square feet (149,000 m²)[4]
Companies
Architect Cesar Pelli[5]
Developer Hines Group[1]
Renzo Piano Towers I & II
Information
Location Mission Street, San Francisco
Status Proposed
Groundbreaking 2009[6][7]
Use Office[6][7]
Height
Antenna/Spire 1,200 ft (366 m)[8]
Technical details
Floor count 101[8]
Elevator count 12[6][7]
Companies
Architect Renzo Piano

The San Francisco Transbay development plan consists of three supertall skyscrapers and ten other skyscrapers and highrises proposed in San Francisco. The towers are proposed to fund the costly replacement of the San Francisco Transbay Terminal in the South of Market neighborhood near the Financial District.[9] The supertalls only comprise three of the thirteen towers of the Transbay Project. Five of the thirteen towers are part of Renzo Piano's complex and the other eight are Transbay Towers.[10] Two other proposals named 181 Fremont Street and 350 Mission Street are proposed projects part of the Transbay Project.[3]

Contents

[edit] Details of the Transbay project

Two of the supertall skyscrapers named Renzo Piano Tower I and Renzo Piano Tower II are set to rise 366 m or 1,200 ft. and contain 101 floors.[8][11][12] The twin supertall terra-cotta towers of the five-tower complex will be located at First and Mission Streets.[11] The entire five-tower complex will be designed by Italian architect Renzo Piano.[11] These buildings will tower 347 feet (106 m) over the Transamerica Pyramid, which is the tallest in San Francisco.[11] Adjoining the twin supertalls are two 900-foot (274 m) towers and one 600-foot (183 m) tower in a dense tower complex said to resemble bamboo shoots.[11][12] Another supertall named Transbay Transit Center & Tower will be attached directly to the replacement Transbay Terminal and this tower will rise on Mission & Fremont Streets. Cesar Pelli's design was chosen by the city of San Francisco on September 20, 2007.[13] Pelli's tower includes a 1,400-foot (427 m) long park on top of the terminal with a 1,200-foot (366 m), 80-story obelisk office tower.[4] This design includes wind turbines on the roof and the building will contain 1,600,000 sq ft (149,000 m²) of office space.[4][9] There are seven other towers of the Transbay Project located on nearby blocks ranging from 850+ feet (259+ m) to a modest 300 feet (91 m).[10]

[edit] Possible height reduction

On May 1, 2008, the city of San Francisco presented its Transbay zoning plan which includes seven towers exceeding the current 550 ft (168 m) height limit, with six towers ranging from 600 feet (183 m) to 800 ft (244 m) and the centerpiece 1,000 ft (305 m) Transbay Tower. Under the city plan, the height of the Renzo Piano towers would be reduced by one-third and the Transbay tower by one-sixth. 181 Fremont Street and Transbay Project II saw their heights cut to only 700 ft (213 m), while 350 Mission Street, currently at 550 ft (168 m), could rise as high as 700 feet (213 m). The plan also permits buildings to rise as high as 600 ft (183 m) on a block of land bounded by Main (northeast), Howard (southeast), and Beale Streets (southwest). One of the reasons for this reduction was that the Transbay Tower, at 1,200 ft (366 m), would cast a shadow over Justin Herman Plaza near the Embarcadero, a violation of a 1984 law that prohibits structures from casting shadows over plazas and parks. A 1,000 ft (305 m) Transbay Tower would not shadow over a significant portion of Justin Herman Plaza.[3] There is also concern that several existing and proposed buildings might turn the intersection of Mission & Fremont Streets into a glass canyon, as 50 Fremont Center, the Millennium Tower, 350 Mission Street and the Transbay Tower are built or planned to be next to the intersection.[14]

[edit] History

The Transbay Project Towers were proposed along with the replacement of the current, aging Terminal. Early versions of the project had only seven towers with six towers over 300 feet (91 m) tall, and one 550-foot (168 m) tower directly attached to the new terminal.[15] In December, 2005, the tower attached to the new terminal was proposed at 925 feet (282 m).[16] About five months later in May, 2006, the single Transbay Project I tower was proposed at 1,000 feet (305 m), with two additional 850-foot (259 m) Transbay Project towers located near the 1,000-foot (305 m) tower.[15][17] Seven months later, Renzo Piano replaced one of the 850-foot (259 m) towers with a dense five-tower complex with two additional supertalls and several other tall skyscrapers, leading to a total number of thirteen Transbay Project towers.[11] Proposed designs for Transbay Project I, ranging from 1,200 feet (366 m) to 1,375 feet (419 m) were presented to the city on August 6, 2007 by the three competing architectural firms or architects. In addition to the winning design by Pelli Clarke Pelli Architects, plans were submitted by Skidmore Owings & Merrill (SOM) and Richard Rogers.[9] The SOM plan consisted of a 1,200-foot (366 m), 93-story twisting tower with a 175-foot (53 m) glass crown for a total height of 1,375 feet (419 m).[9][18] On the ground, there would be a 70-foot (21 m) wide by 103-foot (31 m) tall open-air passage that would lead commuters into the new Transbay Terminal.[9] Rogers' plan consisted of a 1,118.5-foot (341 m) mixed-use tower with exposed elevators. A 168-foot (51 m) steel-framed structure on the roof of this 82-story building would push the total height to 1,286.5 feet (392 m).[19] All three designs included wind turbines on the roof.[9] Construction for Renzo's five tower complex is said to begin in 2009.[6][7]

[edit] List (by height)

Name Height
(est.)
Feet / meters		 Notes
Transbay Transit Center & Tower 1,200 feet (366 m) Attached directly to new terminal[10]
Renzo Piano Tower I 1,200 feet (366 m) Renzo's Complex[10]
Renzo Piano Tower II 1,200 feet (366 m) Renzo's Complex[10]
Renzo Piano Tower III 900 feet (274 m) Renzo's Complex[10]
Renzo Piano Tower IV 900 feet (274 m) Renzo's Complex[10]
181 Fremont Street 900 feet (274 m) Near corner of Fremont & Howard Streets[10]
Transbay Project II 853 feet (260 m) On Howard Street between 1st. & 2nd Streets[10]
Renzo Piano Tower V 600 feet (183 m) Renzo's Complex[10]
Transbay Project III 550 feet (168 m) On Main & Howard Streets[10]
Transbay Project IV 550 feet (168 m) On 1st & Folsom Streets[10]
350 Mission Street 550 feet (168 m) On Mission & Fremont Streets[10]
Transbay Project V 450 feet (137 m) On Main & Howard Streets[10]
Transbay Project VI 400 feet (122 m) On Essex & Folsom Streets[10]
Transbay Project VII 300 feet (91 m) On Spear & Folsom Streets[10]
Transbay Project VIII 300 feet (91 m) On Fremont & Folsom Streets[10]

[edit] See also

[edit] References

  1. ^ a b c d Transbay Transit Center and Tower. Emporis.com. Retrieved on 2008-02-17.
  2. ^ Transbay Terminal Tower. SkyscraperPage.com. Retrieved on 2008-02-17.
  3. ^ a b c King, John (2008-05-01). Transbay plan would sprout new S.F. skyline. San Francisco Chronicle. Retrieved on 2008-05-09.
  4. ^ a b c King, John (2007-08-12). Plan B: Architects: Pelli Clarke Pelli. San Francisco Chronicle. Retrieved on 2007-09-23.
  5. ^ 'Aggressive schedule' for proposed Transbay transit center, tower (picture). San Francisco Chronicle (2007-09-21). Retrieved on 2008-02-17.
  6. ^ a b c d Piano I - 1st St & Mission. SkyscraperPage.com. Retrieved on 2008-02-17.
  7. ^ a b c d Piano II - 1st St & Mission. SkyscraperPage.com. Retrieved on 2008-02-17.
  8. ^ a b c Proposed high-rises in San Francisco. ESRI, San Francisco Planning Department. San Francisco Chronicle (2007-01-20). Retrieved on 2008-02-17.
  9. ^ a b c d e f King, JohnL (2007-08-07). SOARING PLANS FOR TRANSBAY TERMINAL The West Coast's tallest building: 3 competing ideas show audacity that adds to the city's rising skyline. San Francisco Chronicle. Retrieved on 2007-09-23.
  10. ^ a b c d e f g h i j k l m n o p q Rundown of San Francisco's Projects! Under Construction, Approved, and Proposed.... SkyscraperPage. Retrieved on 2007-08-17.
  11. ^ a b c d e f King, John (2006-12-21). Proposal to build two massive towers in SF. San Francisco Chronicle. Retrieved on 2007-09-23.
  12. ^ a b King, John (2006-12-22). Sky's the limit South of Market 4 of developers' proposed high-rises would be taller than anything else in S.F.. San Francisco Chronicle. Retrieved on 2007-09-23.
  13. ^ King, John (2007-09-21). 'Aggressive schedule' for proposed Transbay transit center, tower. San Francisco Chronicle. Retrieved on 2007-09-21.
  14. ^ King, John (2008-05-02). Life on the ground key to new high-rise area. San Francisco Chronicle. Retrieved on 2008-05-09.
  15. ^ a b King, John (2006-05-26). S.F. planners have high hopes for new center of downtown Skyline boasting tallest building in the West envisioned on site of dingy transit terminal. San Francisco Chronicle. Retrieved on 2007-09-23.
  16. ^ Levy, Dan (2005-12-25). Transbay planners see new landmark. San Francisco Chronicle. Retrieved on 2007-09-23.
  17. ^ Fancher, Emily (2006-05-26). Transbay proposal includes possible tallest building on West Coast. San Francisco Business Times. Retrieved on 2007-12-19.
  18. ^ Picture of SOM tower floor plan - San Francisco Transbay Towers: >1000', >800', >800' - * vote for your favorite *: post 754. SkyscraperPage. Retrieved on 2007-08-18.
  19. ^ Floor plan picture - San Francisco Transbay Towers: >1000', >800', >800' - * vote for your favorite * - post 568. SkyscraperPage.com. Retrieved on 2007-09-23.

[edit] External links

v • d • e
Proposed supertall skyscrapers
Proposed

200 Greenwich Street • 375 East Wacker Drive • AIG Main Tower • Al Burj • American Commerce Center • Buenos Aires Forum • Burj Al-Meel • Dubai Towers Istanbul • East Office Tower • Empire World Towers I & II • EP 07 Tower • GiraSole • Hudson Place Towers I & II • Incheon Tower • International Business Center • Karachi Port Tower • Lighthouse Tower • Lotte Super Tower • Madison Square Garden Towers I & II • Millennium Tower • Mubarak al-Kabir Tower • Murjan Tower • Ningbo Twin Towers • One Bayfront Plaza • Phare Tower • Renzo Piano Towers I & II • Shanghai Center • Shard London Bridge • Signature Tower • Suyong Bay Tower • The Gateway III Tower • Torre Planetarium • Tour Generali • Tower Verre • Trans National Place • Transbay Transit Center & Tower • Waldorf-Astoria Hotel and Residence Tower • Xujiahui Tower
Cancelled
Visions
See also
v • d • e
Tallest buildings in San Francisco
Skyscrapers over 492 ft (150 m)
Highrises over 300 ft (91 m)
50 California Street · St. Regis Museum Tower · 100 Pine Center · 45 Fremont Center · 333 Market Street · 650 California Street · 100 First Plaza · One California · San Francisco Marriott · Russ Building · PacBell Building · JP MorganChase Building · The Paramount · Providian Financial Building · Three Embarcadero Center · Two Embarcadero Center · 595 Market Street · 123 Mission Street · 101 Montgomery · Embarcadero West · California Automobile Association Building · Four Seasons Hotel · One Maritime Plaza · St. Francis Hotel · Shell Building · Westin San Francisco -- Market Street · Holiday Inn San Francisco · One Market Plaza (Steuart Tower) · 199 Fremont Street · 425 California Street · Grand Hyatt San Francisco · Equitable Life Building · Fox Plaza · InterContinental Hotel San Francisco · 101 Second Street · 120 Montgomery Street · 580 California Street · 601 California Street · Hilton San Francisco & Towers II · 450 Sutter Street · Stevenson Place · 55 Second Street · 150 California Street · 225 Bush Street · 505 Montgomery Street · Bechtel Building · California Building · The Fairmont San Francisco · 180 Montgomery Street · Central Plaza · The Summit · W Hotel San Francisco · Phillip Burton Federal Building · 555 Market Street · One Bush Plaza · San Francisco City Hall
Under construction
Future buildings
Transbay Transit Center & Tower, Renzo Piano Towers I & II · 181 Fremont Street · Sheraton Palace Hotel Residential Tower · Harbor Village Resort · 350 Mission Street · 509 Howard Street · One Rincon Hill North Tower · Treasure Island development · 201 Folsom Street I & II · 45 Lansing Street · The Californian at Rincon Hill · 340-350 Fremont Street · 555 Washington · 10th and Market · California Pacific Van Ness Hospital · 524 Howard Street