Designed by AD+RG, Hong Kong Community College – West Kowloon Campus is located in Hong Kong. In order to maximise the teaching and communal space, the building mass is decomposed into two twin towers and tectonically linked together by bridges forming podiums. The required total floor plate area divided by floors makes each floor plate too large and might induce a strange proportion. The too-large floor plate also hinders the daylight penetration and air ventilation. The architects separated it and created a twin-towers approach, which provides better cross ventilation and more efficient floor plate usage. The central connecting structures enable better linkage for communal spaces. The twin towers and the connecting structures are carefully articulated to maintain solidity and transparency. “Red-brick” tile is adopted for the solid twin towers while aluminium cladding with glass wall are employed for the transparent connecting bridge structures.