1 Bligh Street, Sydney

Co-owned by DEXUS Property Group, DEXUS Wholesale Property Fund (DWPF) and Cbus Property.
Architectus in collaboration with Ingenhoven Architects
Specialty Venetian Blinds
Sydney CBD
Australia’s first Six Star Green Star high rise office tower and in a world first, the Horiso automated sunshade system is integrated within the elliptical glass cavity of the curved double skin ventilated facade which runs the full height of the building’s 29 floor atrium. In addition, automated Horiso External Venetian Blinds with a 7.5 metre drop were installed on an exposed glass area on the building’s roof top terrace.

No. 1 Bligh Street has 64 separate controllable windows per floor facing 64 different directions, each programmed to receive unique information combining the sun’s Angle of Incidence, absolute position within the building and relative position to adjacent buildings. The fully automated shading system comprises of 897 individually programmed controllers and 1,780 specialty venetian blinds. The Buildings double skin façade and sun-shading reduce air conditioning energy consumption by up to 50%