The Green Void, a temporary sculptural installation in Sydney by LAVA, is the realisation of an organic digital formation. A three dimensional lightweight synthetic structure, based on surface tension, is stretched to fill the atrium’s void, connecting the walls, floor and ceiling. Floating in the void, the installation’s green fabric is mechanically attached to suspended aluminium track profiles. The Green Void, realised in 2008, is part of a series of projects by LAVA, including the MOET marquee, the Entry Paradise Pavilion and the MTV music Awards 2009. It is the outcome of a research process on the digital design of tensile structures, a reminder of the ‘analog’ minimal structures of Frei Otto.