Architectural, historical and social considerations are often collapsed into a single yes-or-no question: Does a building qualify for conservation? But heritage rarely works so neatly, argues SUTD’s Yeo Kang Shua. SINGAPORE: When Yishun 10 opened in May 1992, it looked like nothing else in the heartland. Its architect, Geoff Malone, a film buff who founded the Singapore International Film Festival, was briefed to design something like “a rocket ship which had landed in Yishun from outer space”.