Ken Yeang's approach to designing buildings to cope naturally with extreme climates is hugely important. Solaris is two big buildings, one seven, one 14 storeys, linked by a generous daylit and naturally ventilated atrium with rooflights that close automatically when it rains.

This is a green building in every sense of the word. A narrow landscaped ramp, more like a stony country path, wraps itself around the building for 1.5 kilometres, rising from ground level up to a roof garden with dramatic views of one-third of Singapore.