7 towers that define the 'skinny skyscraper' boom [slideshow]

New York and Melbourne are leading the charge with six super-slender towers in the works. 

February 05, 2014 |

Designed by Bjarke Ingels Group and James KM Cheng Architects, the 49-story Beach & Howe Tower in Vancouver features a twisting,

Recent advancements in structural design, combined with the loosening of density and zoning requirements, has opened the door for the so-called "superslim skyscraper."  

From New York to Melbourne to Vancouver, developers are planning high-rise structures on postage-stamp-sized parcels (OK, not that small, but we're talking lots as narrow as 22 feet) in dense urban locations. 

Developers love the building type because they can finally take advantage of land that was previously unusable for large multifamily and mixed-use structures.

Some projects, like the Beach & Howe Tower in Vancouver (see No. 2 below), utilize a narrow form to accommodate multiple structures on a given site.

To be considered "superthin" or "slender," a tower must have a height-to-width ratio of at least 10:1. A typical skyscraper, such as the Willis Tower, falls in the 7:1 range. The new crop of skinny towers blows those ratios out of the water. For example, the 111 West 57th Street project in New York City has a height-to-width ratio of 22.5:1.

Here's a quick look at some prominent skinny skyscraper projects in the works:

 

1. 111 West 57th Street, New York

Building Type: multifamily (100 units)

Height: 1,350 feet, 77 fours

Width: 60 feet

Building Team

Developer: JDS Development

Architect: SHoP Architects

Structural engineer: WSP Cantor Seinuk

More on 111 West 57th Street via CTBUH's Skyscraper Center

 

 

 

2. Beach & Howe Tower, Vancouver

Building Type: multifamily (407 units)

Height: 493 feet, 49 floors

Width: NA

Building Team

Developer: Westbank Corp.

Architects: Bjarke Ingels Group (BIG), James KM Cheng Architects

Structural engineer: Glotman Simpson Group

MEP engineer: Cobalt Engineering

More on the Beach & Howe Tower via CTBUH's Skyscraper Center

 

 

 

3. Phoenix Apartments, Melbourne, Australia

Building Type: multifamily (28 units)

Height: 290 feet, 29 floors

Width: 21 feet, 11 inches

Building Team

Developer: Equiset

Architect: Fender Katsalidis Architects

More on the Phoenix Apartments via Sidney Morning Herald

 

 

 

4. One57, New York

Building Type: mixed use, with hotel (210 rooms) and multifamily (92 units)

Height: 1,005 feet, 79 floors

Width: NA

Building Team

Developer: Extell Development Company

Design architect: Christian de Portzamparc

Executive architect: SLCE Architect LLP

Structural engineer: WSP Cantor Seinuk

MEP engineer: AKF Engineers

Exterior performance consultant: Israel Berger Associates

Interior designers: Yabu Pushelberg (hotel), Thomas Juul-Hansen, LLC (residential)

Contractor: Bovis Lend Lease

More on One57 via CTBUH's Skyscraper Center

 

 

 

5. 464 Collins Street, Melbourne

Building Type: mixed use, with multifamily (37 floors, 185 units) and office (13 floors)

Height: 593 feet, 50 floors

Width: 36 feet, 1 inch

Building Team

Developer: Equiset

Architect: Bates Smart

More on 464 Collins Street via Urban Melbourne

 

 

 

6. 432 Park Avenue, New York

Building type: multifamily (125 units)

Height: 1,397 feet, 85 floors

Width: 50 feet

Building Team

Developers: CIM Group, Macklowe Properties

Architects: Rafael Vinoly Architects, SLCE Architects

Structural engineer: WSP Cantor Seinuk

MEP engineer: WSP Flack + Kurtz

Contractor: Bovis Lend Lease

More on 432 Park Avenue via CTBUH's Skyscraper Center

 

 

7. 54 Clarke Street, Melbourne

Building Type: multifamily (256 units)

Height: 787 feet, 73 floors

Width: 39 feet, 4 inches

Building Team

Developer: Matrix & Cube

Architect: BKK Architects

Structural engineer: Macleod Consulting

More on 54 Clarke Street via Urban Melbourne

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