The 2021 series of the AIA UK Chapter’s “Virtual Building Tours” continued on 8 April with a visit to Leeza SOHO in Beijing China. Zaha Hadid Architects’ (ZHA) Satoshi Ohashi, Director, and Philipp Ostermaier, Associate, led us through an insightful tour of the building, one of the last projects Zaha Hadid personally contributed to before her death in March 2016.
Leeza SOHO boasts the world’s tallest atrium (194,16 meters), which rotates in two opposing directions, upwards around the building. The iconic building tower, located in the Chinese capital’s Fengtai business district, contains 172,800 square meters covering 45 floors above ground and four floors below. It is comprised of both office and retail spaces with direct connections to the mass transit underground system.
In his remarks, Satoshi discussed ZHA’s long standing relationship with the Chinese building developer, SOHO China. Given their mutual success on three previous projects in China, ZHA has developed a deep professional relationship with the distinctive developer, which, in Satoshi’s opinion, is a fundamental ingredient to building iconic architecture.
He further highlighted the site’s physical constraints; a space bisected by a subway service tunnel. To accommodate the tunnel, the building was divided into two equal towers. The two towers are structurally connected by sky bridges set at four different altitudes, forming a sculptural atrium at the centre of the building volume. Leeza SOHO’s atrium provides a public square for the new business district by linking all the spaces within the tower and by crafting a civic space that has direct connectivity to Beijing’s transport network.
The deliberate positioning of the cores and the twisting of the floor plates through the atrium, facilitates stunning views of the city as well as views that are unique to each floor of the tower. The sculptural atrium also allows a significant amount of natural light to permeate through the public domain and into the office spaces. The two towers of the building also assist in shading the atrium’s public spaces. The double-insulated, low-e glazing contributes to a comfortable indoor temperature all year round.