JTI Headquarters – Sustainable Design

The architectural and sustainable design strategies used at JTI Headquarters help the building exceed the demanding efficiency targets of Swiss national codes by 20 percent, while achieving the Minergie certification for low energy consumption. The building's geometry minimizes the southern facade area to decrease solar radiation, reducing the need for cooling. The narrow floor plates and courtyard maximize daylight and views, while the two raised corners of the building allow prevailing winds to penetrate into the courtyard. Radiant ceiling panels provide energy-efficient comfort throughout the office areas, with fresh air intakes from the shaded courtyard and areas below the building.

The quilted glass facade maximizes natural daylight while sheltering the internal spaces from direct sunlight and heat gain by decreasing direct solar incident angles. The solar reflective glass on the outer skin and the triple-glazed inner layer provide insulation. To further control heat gain, the closed cavity facade integrated blind system responds to the sun's changing position throughout the day.

The building's landscaped roof provides an amenity space for the employees, while reducing the local heat island effect and providing a habitat for birds and insects. The network of sequential green, semi-green, and brown landscaped areas feature native plant species that were carefully selected to minimize maintenance. Trees and low plantings were chosen for their collective capacity to absorb approximately three times as much pollution as grass alone.

A ground source heat pump and a borehole network beneath the basement provide low-carbon heating and cooling. The building also integrates various water reduction strategies, such as taps with motion sensors, low-flow fixtures, and local plantings that reduce the need for irrigation. The overall building management system features an energy-efficient and user-friendly LED lighting system with occupancy sensors and strategic controls.