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
| May 23, 2013
Supertall 'Sky City' will house 4,400 families in Changsha, China
Broad Sustainable Building has completed a long and arduous approval process, and is starting excavation and construction on Sky City in June, 2013. The proposed "world's tallest building" will be a mixed-use project that could accommodate life and work needs of up to 30,000 people.
| May 23, 2013
Are design-build contracts killing small architecture firms?
Are federal design-build contract laws unfair to small firms? AIA thinks so, citing an interesting fact: an architecture firm spends a median of $260,000 to compete for a design-build project.
| May 23, 2013
Is the 'bring your own device' discussion stumping your IT group?
A new twist to the communication challenge most companies and IT departments face is the “bring your own device,” or BYOD, conundrum. I call it a conundrum because it is stumping many IT professionals.
| May 23, 2013
Portland State University’s School of Architecture launches Center for Public Interest Design
Portland State University’s School of Architecture is proud to announce the launch of its new Center for Public Interest Design, a research center that aims to investigate and utilize the power of design to make social, economic and environmental change in disadvantaged communities worldwide. The Center is the first of its kind in the nation.
| May 22, 2013
Return of retail? Rent growth seen in recovering markets
Like digging a ditch with a spoon, retail demand driven by population growth has eaten away at the supply of available store space in the markets that have been slowest to recover from the downturn. Vacancy rates are reaching a point that will give at least some landlords in every market the clout to demand slightly higher rents.
| May 22, 2013
New ASTM standard enhances hollow structural sections
ASTM A1085 is a big step forward in simplifying HSS design and usage, thereby making it a more desirable option for HSS.
| May 22, 2013
Architecture billings take a step back in April, ending growth streak
For the first time in 10 months, the AIA's Architecture Billings Index slipped into negative territory, falling to 48.6 in April, down from 51.9 the previous month. This is the ABI's lowest mark since July 2012.
| May 21, 2013
Foster + Partners reveals plans for London residential towers
British firm Foster + Partners has unveiled plans for two residential skyscrapers as part of a mixed-use development in north London.
| May 21, 2013
RSMeans cost comparisons: pools, racquetball courts, bowling alleys, hockey/soccer facilities
Construction market analysts from RSMeans offer construction costs per square foot for four building types across 25 metro markets.
| May 21, 2013
7 tile trends for 2013: Touch-sensitive glazes, metallic tones among top styles
Tile of Spain consultant and ceramic tile expert Ryan Fasan presented his "What's Trending in Tile" roundup at the Coverings 2013 show in Atlanta earlier this month. Here's an overview of Fasan's emerging tile trends for 2013.