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
| Nov 29, 2010
Data Centers: Keeping Energy, Security in Check
Power consumption for data centers doubled from 2000 and 2006, and it is anticipated to double again by 2011, making these mission-critical facilities the nation’s largest commercial user of electric power. Major technology companies, notably Hewlett-Packard, Cisco Systems, and International Business Machines, are investing heavily in new data centers. HP, which acquired technology services provider EDS in 2008, announced in June that it would be closing many of its older data centers and would be building new, more highly optimized centers around the world.
| Nov 29, 2010
New Design Concepts for Elementary and Secondary Schools
Hard hit by the economy, new construction in the K-12 sector has slowed considerably over the past year. Yet innovation has continued, along with renovations and expansions. Today, Building Teams are showing a keener focus on sustainable design, as well as ways to improve indoor environmental quality (IEQ), daylighting, and low-maintenance finishes such as flooring.
| Nov 29, 2010
Renovating for Sustainability
Motivated by the prospect of increased property values, reduced utility bills, and an interest in jumping on the sustainability bandwagon, a noted upturn in green building upgrades is helping designers and real estate developers stay busy while waiting for the economy to recover. In fact, many of the larger property management outfits have set up teams to undertake projects seeking LEED for Existing Buildings: Operations & Maintenance (LEED-EBOM, also referred to as LEED-EB), a certification by the U.S. Green Building Council.
| Nov 23, 2010
The George W. Bush Presidential Center, which will house the former president’s library
The George W. Bush Presidential Center, which will house the former president’s library and museum, plus the Bush Institute, is aiming for LEED Platinum. The 226,565-sf center, located at Southern Methodist University, in Dallas, was designed by architect Robert A.M. Stern and landscape architect Michael Van Valkenburgh.
| Nov 23, 2010
Honeywell's School Energy and Environment Survey: 68% of districts delayed or eliminated improvements because of economy
Results of Honeywell's second annual “School Energy and Environment Survey” reveal that almost 90% of school leaders see a direct link between the quality and performance of school facilities, and student achievement. However, districts face several obstacles when it comes to keeping their buildings up to date and well maintained. For example, 68% of school districts have either delayed or eliminated building improvements in response to the economic downturn.
| Nov 16, 2010
Architecture Billings Index: inquiries for new projects remain extremely high
The new projects inquiry index was 61.7, down slightly from a nearly three-year high mark of 62.3 in September, according to the Architecture Billings Index (ABI). However, the ABI dropped nearly two points in October; the October ABI score was 48.7, down from a reading of 50.4 the previous month. The ABI reflects the approximate nine to 12 month lag time between architecture billings and construction spending.
| Nov 16, 2010
Brazil Olympics spurring green construction
Brazil's green building industry will expand in the coming years, spurred by construction of low-impact venues being built for the 2016 Olympics. The International Olympic Committee requires arenas built for the 2016 games in Rio de Janeiro meet international standards for low-carbon emissions and energy efficiency. This has boosted local interest in developing real estate with lower environmental impact than existing buildings. The timing couldn’t be better: the Brazilian government is just beginning its long-term infrastructure expansion program.
| Nov 16, 2010
Green building market grows 50% in two years; Green Outlook 2011 report
The U.S. green building market is up 50% from 2008 to 2010—from $42 billion to $55 billion-$71 billion, according to McGraw-Hill Construction's Green Outlook 2011: Green Trends Driving Growth report. Today, a third of all new nonresidential construction is green; in five years, nonresidential green building activity is expected to triple, representing $120 billion to $145 billion in new construction.
| Nov 16, 2010
Calculating office building performance? Yep, there’s an app for that
123 Zero build is a free tool for calculating the performance of a market-ready carbon-neutral office building design. The app estimates the discounted payback for constructing a zero emissions office building in any U.S. location, including the investment needed for photovoltaics to offset annual carbon emissions, payback calculations, estimated first costs for a highly energy efficient building, photovoltaic costs, discount rates, and user-specified fuel escalation rates.
