Reiser + Umemoto
O-14
Dubai, United Arab Emirates
As of June 2008, the first five floors and exterior shell of O-14 have been cast, revealing the beginnings of the perforated concrete shell exoskeleton which, when finished, will surround the building in a lace-like veil.

Image courtesy Reiser + Umemoto
O-14 is a twenty-two story tall commercial tower perched on a two-story podium in the heart of Dubai’s Business Bay.
Located along the extension of Dubai Creek O-14 occupies a prominent location on the waterfront esplanade.
The design of O-14 fundamentally shifts away from the architectural norm in current Dubai towers by eliminating the now obligatory curtain wall solutions and above ground parking, in favor of a shade-producing, concrete load-bearing shell and an open public space at the tower base achieved through below ground parking.

Image courtesy Reiser + Umemoto

Image courtesy Reiser + Umemoto

Image courtesy Reiser + Umemoto

Image courtesy Reiser + Umemoto
“Even the steel reinforcement is fascinating as it must be woven together as if on a great loom.”
Jesse Reiser, Principal

Image courtesy Reiser + Umemoto

Image courtesy Reiser + Umemoto
Super-liquid concrete is cast around this fine meshwork resulting in an elegant perforated exterior shell. The holes are achieved by introducing computer numerically cut polystyrene void forms into the rebar matrix, and sided with modular steel slip forms prior to the concrete pour. The concrete shell of O-14 provides an efficient structure that frees the core from the burden of lateral forces and creates highly efficient, column-free open spaces in the building’s interior.

Photo courtesy Reiser + Umemoto

Photo courtesy Reiser + Umemoto

Photo courtesy Reiser + Umemoto

Photo courtesy Reiser + Umemoto

Photo courtesy Reiser + Umemoto
The shell is not only the structure of the building as it acts on the interiors as a sunscreen open to light, air, and views. The openings on the shell are modulated depending on structural requirements, views, sun exposure, and luminosity. A space nearly one meter deep between the shell and the main enclosure creates a so-called “chimney effect,” a phenomenon whereby hot air has room to rise and effectively cools the surface of the glass windows behind the perforated shell. This passive solar technique essentially contributes to a natural component to the cooling system for O-14, thus reducing energy consumption and costs, just one of many innovative aspects of the building’s design.

Rendering courtesy Reiser + Umemoto
Elevations

Rendering courtesy Reiser + Umemoto
Third Level Plan with Terrace

Rendering courtesy Reiser + Umemoto
Twentieth Floor Plan

Rendering courtesy Reiser + Umemoto
Section
In addition to office tenants the building will contain upscale retail spaces at ground level as well as an elevated podium restaurant with spectacular views of Dubai Creek and the rest of the neighboring Dubai skyline.
Client: Creekside Development Corporation
Architects: RUR Architecture
Principals: Jesse Reiser + Nanako Umemoto
Project Lead: Kutan Ayata
Design Team:
Mitsuhisa Matsunaga
Roland Snooks
Michael Young
Jason Scroggin
Tina Tung
Cooper Mack
Michael Overby
Assistants and Interns:
Raha Talebi,
Yan Wai Chu
Neil Cook
Structural Engineer: Ysrael A. Seinuk
Architect of Record: Erga Progress, Dubai, UAE
Window Wall Cons.: R.A.Heintges & Associates
General Contractor: Dubai Contracting Company (DCC)
June 16, 2008