The Interlace, Singapore

The Interlace stacks 31 residential blocks in a hexagonal configuration over 8 hectares, creating 1,040 units with 80% of its site preserved as lush tropical landscape—significantly faster than the average high-density development’s greenery footprint. Winner of the World Building of the Year in 2013, its three-dimensional Jenga-like form increases natural ventilation by 35% compared to the typical slab block, reducing cooling costs by 20%. The design incorporates 11 private courtyards and a 200-meter sky garden at level 12, outperforming #5’s narrow footprint by providing communal green spaces for all residents. A rainwater harvesting system collects 50,000 liters annually, feeding 40% of the complex’s irrigation needs.