African Design Magazine ADM #42 July 2018 | Page 15

PwC TOWER Sustainability As a LEED Silver building, the PwC Tower had to comply with specific sustainability elements. The building has a highly effective façade which employs high-performance glazing and motorised blinds to provide maximised daylight control and glare. In addition to an efficient water usage system and the use of high-proficiency chillers, the building also has a DALI (Digital Addressable Lighting Interface) system that is used for managing all lighting within the building. A DALI system provides designers, installers, building owners, facility managers and end-users with a powerful and flexible digital lighting system, with compatibility of supply from many sources. The end with a twisted contour, the team managed to produce a building that in Stanley’s words: “Twists so elegantly. There was great simplicity and elegance in dealing with the twist and the end result is a truly breathtaking landmark.” result is that the PwC Tower’s lighting can be programmed to suit the needs of its occupants while simultaneously minimising energy requirements and costs. “The building performs an important urban function as a beacon. It is actually an island as it is not connected to the larger urban fabric, but rather engages with the surrounding park, its tenants, vehicular and pedestrian traffic. As such it is not a civic building in the traditional sense,” says Stanley. The landscaping plays a critical role in the project, dictating how the building AFRICAN DESIGN MAGAZINE © | JULY 2018 15