Seoul Light Digital Media City Tower in Seoul, Korea, combines technology and sustainability strategies to create a new model of supertall building design. A large, central atrium spans vertically through the hotel, residential, and observation deck areas to allow for penetration of natural light and air throughout the building. Air rises through the atrium in a natural “stack effect” and drives wind turbines at the crown of the tower. Interior gardens act as “lungs” for the tower, providing air circulation and filtration for the varied functions.

The architectural expression of Seoul Light Digital Media City Tower reinforces the sustainability strategies at the core of its design. The skyscraper is shaped by gently curving forms and smooth transitions between the north-south and east-west facades. Photovoltaic panels are integrated into areas of the facade that receive the most sun. A large central void and two perimeter voids are carved into the upper half of the tower, creating an opportunity to bring in natural light and clean air. The tower’s soaring crown contains wind turbines that help power the building.

Inside, a tall, vertical central void is lined with glass panels that catch and reflect light, reducing the need for artificial lighting. A green wall within the void cleans the interior air. By utilizing strategies such as stack effect and solar radiation gain, SOM greatly reduced the tower’s reliance on municipal energy.