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
Senior Living Design | Apr 24, 2024
Nation's largest Passive House senior living facility completed in Portland, Ore.
Construction of Parkview, a high-rise expansion of a Continuing Care Retirement Community (CCRC) in Portland, Ore., completed recently. The senior living facility is touted as the largest Passive House structure on the West Coast, and the largest Passive House senior living building in the country.
Hotel Facilities | Apr 24, 2024
The U.S. hotel construction market sees record highs in the first quarter of 2024
As seen in the Q1 2024 U.S. Hotel Construction Pipeline Trend Report from Lodging Econometrics (LE), at the end of the first quarter, there are 6,065 projects with 702,990 rooms in the pipeline. This new all-time high represents a 9% year-over-year (YOY) increase in projects and a 7% YOY increase in rooms compared to last year.
Architects | Apr 24, 2024
Shepley Bulfinch appoints new Board of Director: Evelyn Lee, FAIA
Shepley Bulfinch, a national architecture firm announced the appointment of new Board of Director member Evelyn Lee, FAIA as an outside director. With this new appointment, Lucia Quinn has stepped down from the firm’s Board, after serving many years as an outside board advisor and then as an outside director.
ProConnect Events | Apr 23, 2024
5 more ProConnect events scheduled for 2024, including all-new 'AEC Giants'
SGC Horizon present 7 ProConnect events in 2024.
75 Top Building Products | Apr 22, 2024
Enter today! BD+C's 75 Top Building Products for 2024
BD+C editors are now accepting submissions for the annual 75 Top Building Products awards. The winners will be featured in the November/December 2024 issue of Building Design+Construction.
Laboratories | Apr 22, 2024
Why lab designers should aim to ‘speak the language’ of scientists
Learning more about the scientific work being done in the lab gives designers of those spaces an edge, according to Adrian Walters, AIA, LEED AP BD+C, Principal and Director of SMMA's Science & Technology team.
Resiliency | Apr 22, 2024
Controversy erupts in Florida over how homes are being rebuilt after Hurricane Ian
The Federal Emergency Management Agency recently sent a letter to officials in Lee County, Florida alleging that hundreds of homes were rebuilt in violation of the agency’s rules following Hurricane Ian. The letter provoked a sharp backlash as homeowners struggle to rebuild following the devastating 2022 storm that destroyed a large swath of the county.
Mass Timber | Apr 22, 2024
British Columbia changing building code to allow mass timber structures of up to 18 stories
The Canadian Province of British Columbia is updating its building code to expand the use of mass timber in building construction. The code will allow for encapsulated mass-timber construction (EMTC) buildings as tall as 18 stories for residential and office buildings, an increase from the previous 12-story limit.
Standards | Apr 22, 2024
Design guide offers details on rain loads and ponding on roofs
The American Institute of Steel Construction and the Steel Joist Institute recently released a comprehensive roof design guide addressing rain loads and ponding. Design Guide 40, Rain Loads and Ponding provides guidance for designing roof systems to avoid or resist water accumulation and any resulting instability.
Building Materials | Apr 22, 2024
Tacoma, Wash., investigating policy to reuse and recycle building materials
Tacoma, Wash., recently initiated a study to find ways to increase building material reuse through deconstruction and salvage. The city council unanimously voted to direct the city manager to investigate deconstruction options and estimate costs.
