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
Related Stories
| Feb 1, 2012
Two new research buildings dedicated at the University of South Carolina
The two buildings add 208,000 square feet of collaborative research space to the campus.
| Feb 1, 2012
List of Top 10 States for LEED Green Buildings released?
USGBC releases list of top U.S. states for LEED-certified projects in 2011.
| Feb 1, 2012
ULI and Greenprint Foundation create ULI Greenprint Center for Building Performance
Member-to-member information exchange measures energy use, carbon footprint of commercial portfolios.
| Feb 1, 2012
AEC mergers and acquisitions up in 2011, expected to surge in 2012
Morrissey Goodale tracked 171 domestic M&A deals, representing a 12.5% increase over 2010 and a return to levels not seen since 2007.
| Jan 31, 2012
AIA CONTINUING EDUCATION: Reroofing primer, in-depth advice from the experts
Earn 1.0 AIA/CES learning units by studying this article and successfully completing the online exam.
| Jan 31, 2012
28th Annual Reconstruction Awards: Modern day reconstruction plays out
A savvy Building Team reconstructs a Boston landmark into a multiuse masterpiece for Suffolk University.
| Jan 31, 2012
Chapman Construction/Design: ‘Sustainability is part of everything we do’
Chapman Construction/Design builds a working culture around sustainability—for its clients, and for its employees.
| Jan 31, 2012
Fusion Facilities: 8 reasons to consolidate multiple functions under one roof
‘Fusing’ multiple functions into a single building can make it greater than the sum of its parts. The first in a series on the design and construction of university facilities.
| Jan 31, 2012
Suffolk Construction to manage Lawrence & Memorial Hospital Cancer Center project in Waterford, Conn.
Leading construction management firm overseeing one of first healthcare projects in the country to utilize innovative IPD process.
| Jan 31, 2012
Perkins Eastman’s Miller appointed Chairman of the AIA International Committee
International expertise leveraged as global industry resource.