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
| Jan 24, 2014
ZGF announces formal partnership with Vancouver's Cotter Architects
ZGF has announced the formal establishment of a Vancouver, British Columbia, presence in partnership with Cotter Architects.
| Jan 24, 2014
Structural concrete requirements under revision: ACI 318 standard
The American Concrete Institute (ACI), an organization whose mission is to develop and disseminate consensus-based knowledge on concrete and its uses, is finalizing a completely reorganized ACI 318-14: Building Code Requirements for Structural Concrete.
| Jan 23, 2014
SMPS Announces Call for Entries for 37th Annual Marketing Communications Awards Program
The Society for Marketing Professional Services (SMPS) is accepting entries for its 37th Annual Marketing Communications Awards (MCA) competition. The MCA program is the longest-standing, most prestigious awards program recognizing excellence in marketing communications by professional services firms in the design and building industry. The entry deadline is March 3, 2014. SMPS members and nonmembers are eligible to enter.
| Jan 23, 2014
Adrian Smith + Gordon Gill-designed Federation of Korean Industries tower opens in Seoul [slideshow]
The 50-story tower features a unique, angled building-integrated photovoltaic (BIPV) exterior designed to maximize the amount of energy collected.
| Jan 23, 2014
Think you can recognize a metal building from the outside?
What looks like brick, stucco or wood on the outside could actually be a metal building. Metal is no longer easily detectable. It’s gotten sneakier visually. And a great example of that is the Madison Square retail center in Norman, Okla.
| Jan 23, 2014
3 fatal flaws your architecture firm has right now
After visiting over 200 architecture firms, I was aghast that so many of them were committing these costly sins of mismanagement and miscommunication, without even realizing it. If I can stop even one more firm from shooting its own foot, then this is worth it.
| Jan 22, 2014
SOM-designed University Center uses 'sky quads,' stacked staircases to promote chance encounters
The New School's vertical campus in Manhattan houses multiple functions, including labs, design studios, a library, and student residences, in a 16-story building.
| Jan 22, 2014
Architecture Billings Index sees first back-to-back decline since mid-2012
The AIA's Architecture Billings Index dipped for the second consecutive month in December—the first consecutive months of contraction since May and June of 2012.
| Jan 21, 2014
Comcast to build second Philadelphia skyscraper, with Norman Foster-designed tower [slideshow]
The British architect last week unveiled his scheme for the $1.2 billion, 59-story Comcast Innovation and Technology Center, planned adjacent to the Comcast Center.
| Jan 21, 2014
2013: The year of the super-tall skyscraper
Last year was the second-busiest ever in terms of 200-meter-plus building completions, with 73 towers, according to a report by the Council on Tall Buildings and Urban Habitat.