Council on Tall Buildings and Urban Habitat
Allianz Tower
Featured June 2018
Allianz Tower was recognized as a "Best Tall Building: Europe" Finalist in the 2016 Best Tall Building Awards.
Other Featured Tall Buildings

“Allianz Tower has so much going for it - an interesting prismatic shape, a highly textured façade, numerous cultural references, and a series of communal skygardens.

Antony Wood, Executive Director, CTBUH

Completion Date:
March 2015
Building Height:
186 m (609 ft)

Area:
86,200 sq m (927,849 sq ft)
Primary Function:
Office
Owner / Developer:
Allianz; Rennissance Development
Architects:
FXCollaborative (design); Fehmi Kobal Design Architects (architect of record)
Structural Engineers:
DeSimone Consulting Engineers (design); Aydin PelinCan Binzet Consulting Enginnering Co. (engineer of record)

MEP Engineer: Cosentini Associates (design); Okutan M
ühendislik (engineer of record)
Main Contractors:
Renaissance Construction Company
Other Contractors: Kinemetrics Inc. (building monitoring); AxisFacade (façade); Van Deusen & Associates (vertical transportation).


Allianz Tower rizes just meters away from the intersection of two major highways, making the building's prominence immediately discernible. Its obelisk-like apperance and location at this critical junction allow it to operate as a gateway for those entering the city from the east. The tower's inticrate configuration takes advantage of its site visible from all directions -- by offering compelling visuals that shift as the perspective changes.
 

 

Its striking angular form, plentiful common spaces, and widespread implementation of efficient building systems provide the basis for a landmark tower. The project is Turkey’s first LEED Platinum tower. It brings together a sculptural massing rooted in place, a solar-responsive skin alluding to Islamic tradition, and numerous green spaces. As such, much like the city it stands in, the building is culturally specific yet internationally resonant

Different spheres of cultural reference inspired the design of the tower. The unique geographic and historic landscapes of Cappadocia in Central Turkey – featuring tower-like habitations emerging from rock formations – were heavily influential. Additionally, an Islamic prohibition on figurative imagery, which generates architecture adorned with ornamental embellishments, plays a role in the tower design. The basic figure of the tower – a faceted obelisk – is informed by these notions and is rooted in Islamic ornamental geometries that contribute to overall form, building skin, and plaza design.

Double-height spaces on every office floor can be used as sky gardens and break-out and meeting areas Façade view showing the second stippled golden skin
Other elements of Islamic vernacular architecture, including geometric mashrabiya screens that both temper direct sunlight and limit views from the street, were also referenced on the tower’s skin. Stippled golden paneling draped over the glass surface of the building incorporates ornamental patterning and is tuned to an optimum solar orientation that reduces heat load. The building’s skin represents a merger of cultural and climatic goals, wherein cultural references act as symbols that are integrated into the logic and performance of the building.

Along with its culturally specific design, the building is optimized for occupant comfort in a contemporary office environment. Columns are spaced nine meters apart, generating flexible, open floor plates. A raised floor system permits easy interior customization and incorporates an energy-efficient displacement ventilation system. Elevated sky gardens designate areas for formal and informal meetings, and allow building occupants to enjoy natural light in multifunctional areas within the workplace.

Interior office view showing the protective panels Typical floor plan

The sky gardens play an integral part in the building’s design concept by providing communal gathering spaces. A number of early design decisions dictated the planning of these spaces. Each is two stories in height, which allows ample light while ensuring that all building occupants are no more than one level away at all times. Additionally, they are placed at the corners of the buildings to give occupants a perception of the volume of the space, while also providing panoramic views.

Taken together, the tower’s design strategy synthesizes the cultural and vernacular architecture of Istanbul with the most advanced environmental performance and occupant comfort parameters in the city in order to meet the needs of a growing business population.  Its presence elevates the standards of architecture in the city in terms of both visual aesthetics and practical design.

Related Links
CTBUH Skyscraper Center Profile:
Allianz Tower