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
Smart Buildings | Oct 1, 2020
Smart buildings stand on good data
The coming disruption of owning and operating a building and how to stay ahead through BIM.
Architects | Oct 1, 2020
BIG imagines how we could live on the moon
The architecture firm has partnered with ICON on the project.
Architects | Sep 30, 2020
Sir David Adjaye OBE to receive 2021 Royal Gold Medal for Architecture
His practice, Adjaye Associates, was founded in 2000 and today has studios in Accra, London and New York, with projects across the world.
Coronavirus | Sep 28, 2020
Evaluating and investing resources to navigate past the COVID-19 pandemic
As AEC firm leaders consider worst-case scenarios and explore possible solutions to surmount them, they learn to become nimble, quick, and ready to pivot as circumstances demand.
Coronavirus | Sep 24, 2020
The Weekly show: Building optimization tech, the future of smart cities, and storm shelter design
The September 24 episode of BD+C's "The Weekly" is available for viewing on demand.
Healthcare Facilities | Sep 10, 2020
Easing the oncology journey: The role of urgent care
Oncology patients are better served when they’re connected to the right staff.
Airports | Sep 10, 2020
The Weekly show: Curtis Fentress, FAIA, on airport design, and how P3s are keeping university projects alive
The September 10 episode of BD+C's "The Weekly" is available for viewing on demand.
Architects | Sep 8, 2020
The New City project by Eric Owen Moss Architects receives AIA’s Twenty-five Year Award
AIA’s Twenty-five Year Award is conferred on a building that has set a precedent for the last 25-35 years and continues to set standards of excellence for its architectural design and significance.
Architects | Sep 1, 2020
An evidenced-based approach to elevate the workplace experience
A new NBBJ report presents design concepts for providing people with opportunities to recharge and engage in the workplace.
K-12 Schools | Sep 1, 2020
The rise of inquiry-based learning in K-12 communities
Inquiry-based education offers a methodology that does not rely solely on the educator being the lead in all learning.