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
Multifamily Housing | Aug 19, 2021
Multifamily emerges strong from the pandemic, with Yardi Matrix's Doug Ressler
Yardi Matrix's Doug Ressler discusses his firm's latest assessment of multifamily sales and rent growth for 2021.
Resiliency | Aug 19, 2021
White paper outlines cost-effective flood protection approaches for building owners
A new white paper from Walter P Moore offers an in-depth review of the flood protection process and proven approaches.
Resiliency | Aug 19, 2021
White paper outlines cost-effective flood protection approaches for building owners
A new white paper from Walter P Moore offers an in-depth review of the flood protection process and proven approaches.
Urban Planning | Aug 16, 2021
Building with bikes in mind: How cities can capitalize on the pandemic’s ‘bike boom’ to make streets safer for everyone
Since early 2020, Americans have been forced to sequester themselves in their homes with outdoor activities, in most cases, being the sole respite for social distancing. And many of people are going back to the basics with a quintessential outdoor activity: biking. Bike sales absolutely skyrocketed during the pandemic, growing by 69% in 2020.
Senior Living Design | Aug 13, 2021
Designing with dignity for senior living, with Mike Rodebaugh, LEO A DALY
In this exclusive interview for HorizonTV, Mike Rodebaugh, AIA, Senior Living Sector Leader with LEO A DALY, describes how his firm applies "hospitality magic tricks" in its senior living communities, using design to lend dignity to residents, staff, and residents' families and social circles.
Architects | Aug 5, 2021
Lord Aeck Sargent's post-Katerra future, with LAS President Joe Greco
After three years under the ownership of Katerra, which closed its North American operations last May, the architecture firm Lord Aeck Sargent is re-establishing itself as an independent company, with an eye toward strengthening its eight practices and regional presence in the U.S.
Architects | Aug 5, 2021
Lord Aeck Sargent's post-Katerra future, with LAS President Joe Greco
After three years under the ownership of Katerra, which closed its North American operations last May, the architecture firm Lord Aeck Sargent is re-establishing itself as an independent company, with an eye toward strengthening its eight practices and regional presence in the U.S.
Office Buildings | Aug 4, 2021
‘Lighthouse’ office tower will be new headquarters for A2A in Milan
The tower, dubbed Torre Faro, reimagines the company’s office spaces to adapt to people’s ever-changing needs at work.
Multifamily Housing | Jul 30, 2021
Multifamily housing for a post-COVID world
A trio of multifamily design experts presents concepts for post-pandemic apartment developments.
Architects | Jul 23, 2021
NCARB releases demographic breakdown of licensing exam pass rates
The organization is launching initiatives to figure out what’s causing disparities among candidate groups.
