Al Khatem Tower Download PDF


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Height: Occupied
145 m / 476 ft
Height: To Tip
155 m / 509 ft
Height: Architectural
155 m / 509 ft
Al Khatem Tower Outline
Floors Above Ground
37
Floors Below Ground
2
Top Elevator Speed
6 m/s
Development GFA
529,400 m² / 5,698,414 ft²

Facts

Official Name Al Khatem Tower
Name of Complex Sowwah Square
Other Names Sowwah Square Tower 4
Structure Type Building
Status Completed
Country United Arab Emirates
City Abu Dhabi
Street Address & Map Al Maryah Island
Building Function office
Structural Material concrete
Proposed 2007
Construction Start 2008
Completion 2012
Official Website Sowwah Square
Rankings Click arrows to view the next taller/shorter buildings
Regional Ranking #242 Tallest in Middle East
City Ranking #28 Tallest in Abu Dhabi

Companies Involved

Owner/Developer Mubadala Real Estate & Infrastructure
Architect
Design Goettsch Partners
Architect of Record Serex International
Structural Engineer
Design Oger International
Engineer of Record Serex International
Peer Review Thornton Tomasetti
MEP Engineer
Design Oger International
Peer Review Environmental Systems Design, Inc.
Main Contractor Oger Abu Dhabi

About Al Khatem Tower

Sowwah Square is a major new commercial development on Abu Dhabi’s Al Maryah Island. The city’s new urban framework plan, entitled Plan Abu Dhabi 2030, has designated the previously undeveloped island and the adjacent edges of Mina Zayed and Reem Island as the city’s new Central Business District. The project totals over 290,000 square meters of office space and features the iconic new headquarters building for the Abu Dhabi Securities Exchange, surrounded by four office towers, all overlooking the water. In addition, the project integrates two levels of retail and two parking structures.

The centerpiece of the development’s first phase is the business center, which includes a stock exchange building, four Class-A office towers and 23,220 square meters of retail.

The stock exchange building is an iconic, four-level facility. Glass-enclosed with a roof the size of a football field. The four granite piers house the stairs, mechanical risers and service elements for the exchange.

Four office towers frame the stock exchange building. The first full office floor of each building provides a transparent, open lobby and elevating the views on all tenant floors. A landscaped plaza connects the four buildings and the exchange.

Beneath the plaza, a two-story retail podium weaves through the development, providing upscale shopping along the waterfront. At the north and south boundaries of the site, two parking structures, partially submerged, serve the complex with more than 2,400 parking spaces each.
Sowwah Square is the first mixed-use project in Abu Dhabi to be pre-certified LEED-CS Gold based on sustainable initiatives. However, the complex looks beyond the LEED certification process to emphasize a sustainable design approach throughout, integrating both active and passive sustainable design strategies.

The complex emphasizes a sustainable design approach throughout, and looks beyond the LEED certification process to integrate both active and passive sustainable design strategies.

The environmentally responsive enclosure system uses a mechanically ventilated cavity and a double-skin façade system over large portions of the office buildings. These elements mitigate the 40 ºF (4.44 º C ) interior/exterior temperature differential and protect building occupants from the intense sand storms and constant corrosive mist of the neighboring Gulf coast.

The double-skin cavities run uninterrupted along the entire height of the four office towers, starting from the fourth floor and extending to the penthouse mechanical floors. Within these cavities, active solar shades continuously track and adjust for the sun angle in order to provide optimal shading to the building’s interior. The cavity is sealed to protect the gears from airborne particulates.

Active solar shading and glass selection keep the cavity from increasing the internal radiant temperature. To minimize the amount of solar energy penetrating the outer layer of the double-skin system, an outboard fin with a very high shading coefficient (76 percent) was selected. The remaining energy was then blocked from reaching the inner façade by the active shading; however, its presence contributed to an elevated air temperature within the double-skin cavity.

To alleviate the accelerated temperature and achieve the moderating air buffer, the warm cavity air needed to be flushed out using an air source cooler than the natural air temperature. The solution was to collect the exhaust air from the tower offices and, instead of allowing it to escape into the atmosphere, redirect it back down the double-skin cavities, where it is exhausted at the fourth-floor mechanical level. Sensors within the cavities modulate dampers at the top of the building, directing the air to the optimal zones of the cavity depending on the time of day and outdoor temperature. Additional dampers will allow filtered exterior air to enter directly into the cavity during economizing periods such as night and winter, when the outdoor air is cooler than the collected exhaust air.
Through these efforts, the design team expects the double-skin cavity to be an average temperature of 89 ºF (31.7 ºC) when the exterior temperature reaches 115 ºF (46.1ºC) . This condition will allow the high U-value of the insulated inner glazing to more easily block the air cavity’s radiating energy. Most importantly, calculations estimate that the double-skin system designed for Sowwah Square will generate a savings of 7200 kWh of electricity per day across all four towers and provide a more comfortable thermal environment near the perimeter wall, all while protecting itself from the harsh external elements.

Sowwah Square is the first mixed-use project in Abu Dhabi to be pre-certified LEED-CS Gold based on sustainable initiatives.

CTBUH Initiatives

CTBUH Representatives Accompany Saudi Visit to Qatar, UAE
Oct 2014 – Tour Report

Videos

Best Tall Building Middle East & Africa: Sowwah Square: A New Environmental Paradigm for the Middle East
6 Nov 2013 – James Goettsch, Goettsch Partners

CTBUH 12th Annual Awards Dinner
6 Nov 2013 – Dinner 2013

Interview: Sowwah Square
6 Nov 2013 – James Goettsch, Goettsch Partners

More Videos

Videos Related to Al Khatem Tower

Videos Related to Al Khatem Tower

Best Tall Building Middle East & Africa: Sowwah Square: A New Environmental Paradigm for the Middle East
6 Nov 2013 – CTBUH "12th Annual Awards"; James Goettsch, Goettsch Partners
Sowwah Square is consciously sustainable and warmly inviting. Its clear massing and organization helps ensure that the design will not appear dated and will continue to…
CTBUH 12th Annual Awards Dinner
6 Nov 2013 – CTBUH "12th Annual Awards"; Dinner 2013
The 12th Annual Awards Ceremony & Dinner was held in Mies van der Rohe's iconic Crown Hall, on the Illinois Institute of Technology campus, Chicago. The 2013 "Best Tall…
Interview: Sowwah Square
6 Nov 2013 – 2013 Awards Ceremony/Symposium Interviews; James Goettsch, Goettsch Partners
James Goettsch discusses Sowwah Square, the Best Tall Building Europe Middle East & Africa Winner. The design of Sowwah Square includes many sustainable elements and…
How Tall Buildings Meet the Ground is as Important as How They Meet the Sky
19 Sep 2012 – Presentation at CTBUH 2012 9th World Congress, Shanghai; James Goettsch, President, Goettsch Partners
Today, urbanism is synonymous with tall buildings, and because of their symbolic nature a great deal of attention is given to how these buildings meet the sky. However,…

Browse hundreds of other videos from Council events including conferences and interviews with prominent tall building professionals in the Video Library

Research Papers

How Tall Buildings Meet the Ground is as Important as How They Meet the Sky
Sep 2012 – CTBUH 2012 9th World Congress, Shanghai