7 World Trade Center
| Company type | Commercial office building |
|---|---|
| Industry | Real estate |
| Predecessor | Original 7 World Trade Center (1987–2001) |
| Founded | May 7, 2002 (construction start) |
| Founder | Larry Silverstein |
| Fate | Replaced original 7 World Trade Center destroyed in September 11 attacks |
| Successor | Current 7 World Trade Center (opened May 23, 2006) |
| Headquarters | New York City, New York , United States |
Area served | Lower Manhattan |
Key people | Larry Silverstein (developer) |
| Products | Office space leasing |
| Owner | Larry Silverstein (ground lease from Port Authority of New York and New Jersey) |
| Parent | Silverstein Properties |
7 World Trade Center (also known as 7 WTC, WTC-7, or Tower 7) is a commercial office building situated within the redeveloped World Trade Center complex in Lower Manhattan, New York City. It occupies an entire city block enclosed by Greenwich, Vesey, Washington, and Barclay Streets. The project was developed by Larry Silverstein, who holds a ground lease from the Port Authority of New York and New Jersey, with architectural design by Skidmore, Owings & Merrill.
This structure serves as the successor to the original 7 World Trade Center (1987–2001), which was destroyed during the September 11 attacks in 2001. Construction commenced in 2002, culminating in its opening on May 23, 2006. The building rises 52 stories above ground, plus one subterranean level, making it the 64th-tallest building in New York City. Its footprint is reduced compared to the original, with a portion of the former site along Greenwich Street converted into a public park.
Safety was a key focus in the design, featuring a reinforced concrete core, expanded stairwells, and improved fireproofing applied to steel columns. The building also integrates environmentally sustainable elements, earning it LEED Gold certification from the U.S. Green Building Council as part of an early pilot program for Leadership in Energy and Environmental Design – Core and Shell Development (LEED-CS).
History
The initial 7 World Trade Center was a 47-story high-rise clad in red granite. It debuted in 1987 as a component of the original World Trade Center complex. The terrorist attacks on September 11, 2001 led to the collapse of the Twin Towers; falling debris from these structures caused severe damage or destruction to adjacent buildings, including 7 World Trade Center, which collapsed soon after.
Construction
Work on the new 7 World Trade Center began on May 7, 2002, initially involving securing the site with fencing. A critical priority was restoring the Consolidated Edison electrical substation to meet power requirements for Lower Manhattan; four out of ten transformers destroyed needed replacement by 2003. Because 7 World Trade Center is separate from the main World Trade Center site, Larry Silverstein only needed consent from the landowner, the Port Authority, to proceed with reconstruction.
The substation’s construction concluded in October 2003 and became operational by May 2004.
An atypical construction sequence was employed for the office tower: erecting the steel framework prior to constructing the concrete core, which accelerated completion by several months. By July 2005, American Express Financial Advisors intended to lease space there, becoming its inaugural tenant. Silverstein targeted rental rates of $50 per square foot by 2005, positioning them among the highest in Lower Manhattan.
The project finished in 2006 at an estimated cost of $700 million. Although Silverstein received $861 million from insurance claims on the previous building, he still carried over $400 million in mortgage debt. Financing for reconstruction included $475 million from Liberty Bonds, offering tax-exempt funding designed to aid Lower Manhattan’s revitalization, supplemented by remaining insurance proceeds.
A triangular-shaped park was established between Greenwich Street and West Broadway through collaboration between David Childs, Ken Smith, and Annie Weinmayr. This green space features an open plaza with a fountain encircled by sweetgum trees and boxwood shrubs. At its heart stands Jeff Koons’ stainless steel artwork Balloon Flower (Red).
2000s
The official opening of the building took place on May 23, 2006, celebrated with a complimentary concert featuring performers like Suzanne Vega and Lou Reed. Before its inauguration, the site served as a filming location for the movie Perfect Stranger. By August 2006, roughly 10% of the building's space had been leased, with several vacant floors hosting events such as charity luncheons and fashion shows to draw attention.
Between September and October 2006, the World Trade Center Memorial Foundation presented a free photography exhibition on the 45th floor, displaying 63 photographs that documented American reactions to the September 11 attacks.
In September 2006, Moody's Investors Service secured a 20-year lease covering 15 floors at 7 World Trade Center; prior to this agreement, only eight floors were occupied. Early occupants also included ABN AMRO, Ameriprise Financial, DRW Trading Group, publisher Mansueto Ventures, and the New York Academy of Sciences. Silverstein Properties maintained offices and executive suites within the building. Additionally, architectural and engineering firms involved in One, Two, Three, and Four World Trade Center established offices there. By April 2007, approximately two-thirds of the office space had been leased.
Following ABN AMRO’s acquisition by the Royal Bank of Scotland, forex services provider FXDD subleased a portion of RBS’s space in 2009.
2010s to present
In April 2011, law firm WilmerHale signed a lease for 200,000 square feet at 7 World Trade Center, marking the city’s inaugural 'green lease'. By September 2011, the building reached full occupancy after MSCI committed to leasing 125,000 square feet on the top floor. Other tenants included FXDD, WilmerHale, and WestLB. In 2012, Silverstein refinanced the property through a $452.8 million Liberty bond issuance alongside a $125 million commercial mortgage-backed security loan; full occupancy valued the building at $940 million. FXDD subleased office space to engineering firm Permasteelisa in 2015 and AI company IPsoft in 2016. By 2017, occupancy stood at 94.8%, with Moody's, Royal Bank of Scotland, and WilmerHale occupying about three-quarters of the available space.
At the start of 2019, wedding planning company Zola and architecture firm Skidmore, Owings & Merrill leased offices at 7 WTC. Mid-2019 saw luxury beverage brand Moët Hennessy and media firm AccuWeather join as tenants. After Mansueto Ventures and three other companies leased space in April 2022, occupancy climbed to 97%. Shortly thereafter, Silverstein Properties refinanced the asset with a $458 million loan from Goldman Sachs.
Architecture
The rebuilt 7 World Trade Center rises to a height of , encompassing 52 stories. It provides 42 floors dedicated to leasable office space totaling . The initial ten levels house an electrical substation that supplies power to much of Lower Manhattan. Unlike its predecessor’s broader base, this tower’s slimmer footprint at ground level allowed for the restoration of Greenwich Street—reconnecting TriBeCa with the Financial District.
Facade
David Childs from Skidmore, Owings & Merrill partnered with glass artist James Carpenter to create a facade incorporating ultra-clear, low-iron glass to maximize reflectivity and natural light penetration. Behind the glass are stainless-steel spandrels designed to reflect sunlight; their textured and curved forms enhance light diffusion from window sills and sky reflections. The lower stories feature panels embedded with approximately 130,000 steel triangular prisms angled strategically to bounce natural light. Upper-floor windows measure high and are constructed from white glass with low iron content. The facade utilizes Type 316 stainless steel containing molybdenum for enhanced resistance against corrosion.
Situated above the Con Edison substation, transformer vaults were consolidated into an shell at the base level. A curtain wall equipped with stainless steel louvers ventilates machinery such as transformers and vertical cooling radiators facing onto the street.
On the eastern side is a cable-net glass wall above the Greenwich Street entrance that reflects daylight during daytime hours. At night, it is illuminated by around 220,000 blue and white LED lights which interact with the prism panels on the facade to cast light onto the street below. The lobby curtain wall is composed of heavily laminated and heat-strengthened glass engineered to meet stringent blast-resistance requirements. Above the lobby hangs a large illuminated cube that emits blue light after dark, white light during daylight hours, and transitions through violet shades at dusk.
Features
The main lobby showcases an LED artwork created by artist Jenny Holzer, featuring illuminated text that scrolls across expansive plastic panels measuring wide by tall. Holzer partnered with Klara Silverstein, spouse of Larry Silverstein, to curate the poetry displayed in the installation. For security purposes, the lobby wall is structurally reinforced. Upper levels contain tailored tenant environments; for example, Mansueto Ventures’ office utilizes an open layout to maximize daylight, while the New York Academy of Sciences occupies the 40th floor with a design by H3 Hardy Collaboration Architecture that includes a reception area with an openwork screen, a 296-seat auditorium, and a mural extending long.
The building employs Otis destination dispatch elevators to minimize waiting and travel durations. Users choose their destination floors via keypads in the lobby and are then guided to designated elevators that do not have interior buttons. This system is integrated with key-card access, allowing automatic elevator calls based on employees’ assigned floors.
Structural engineering was provided by WSP Cantor Seinuk, while Jaros, Baum & Bolles managed the mechanical, electrical, and plumbing engineering. Approximately 30% of the structural steel used is recycled. Environmentally conscious features include rainwater harvesting for irrigation and cooling systems, ample natural daylighting, tenant-specific power monitoring to promote energy efficiency, reuse of steam for power production, and recycled materials incorporated into insulation and interior finishes.
Touted as one of the safest skyscrapers in the United States upon its completion, Silverstein Properties emphasizes its advanced life-safety measures as a model for upcoming high-rise developments. Elevator and stairwell shafts are encased in thick reinforced concrete combined with fireproofing—an improvement over the original building’s drywall lining. Additionally, staircases are designed to be wider to enable quicker evacuation.
See also
External links
- 7 World Trade Center at SilversteinProperties.com
- 7 World Trade Center on CTBUH Skyscraper Center
- Articles with short description
- 2006 establishments in New York City
- Leadership in Energy and Environmental Design gold certified buildings
- Office buildings completed in 2006
- Skidmore, Owings & Merrill buildings
- Skyscraper office buildings in Manhattan
- World Trade Center
- 2000s architecture in the United States