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
Healthcare Facilities | Oct 25, 2017
Creating child-friendly healthcare spaces: Five goals for success
Children often accompany parents or grandparents in medical settings; what can we do to address their unique needs?
Giants 400 | Oct 24, 2017
Top 160 reconstruction architecture firms
Gensler, Jacobs, and Stantec top BD+C’s ranking of the nation’s largest reconstruction sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Giants 400 | Oct 20, 2017
Top 40 sports architecture firms
Populous, HOK, and HKS top BD+C’s ranking of the nation’s largest sports sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Giants 400 | Oct 19, 2017
Race for talent drives office designs
Is the shift toward attracting younger workers too much or not enough?
Sponsored | Designers | Oct 18, 2017
Universal design principles: Part 2
The CDC targets the bathroom as the most dangerous room in the house. Architects can use principles of Universal Design (UD) to reduce these hazards.
Giants 400 | Oct 17, 2017
Top 110 office architecture firms
Gensler, Jacobs, and HOK top BD+C’s ranking of the nation’s largest office sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Giants 400 | Oct 16, 2017
Data center market forecast: Clearly cloudy
Look for mission-critical construction to double in the next few years.
Resiliency | Oct 13, 2017
Resiliency takes center stage in new projects around the country
Projects like these, where resilience is central to their design and construction, are becoming more commonplace.
Architects | Oct 11, 2017
Architects to policymakers: Buildings are infrastructure, too
Left out of this ongoing national debate over infrastructure are the nation’s other public buildings: the libraries, community centers, courthouses, community college buildings, affordable housing developments, and justice facilities.
Giants 400 | Oct 11, 2017
Top 25 data center architecture firms
Jacobs, Corgan, and Gensler top BD+C’s ranking of the nation’s largest data center sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
