Highcliff
Highcliff is a luxury apartment block built on the slopes of the mountain in Happy Valley. Designed by DLN Architects & Engineers, the 75-storey tower has won several design awards. What makes Highcliff unusual is not its premium location or expensive real estate price tag, but the fact that it is extremely thin for such a tall building. It has a slenderness ratio of 1:20 between its width and height, making it one of the thinnest buildings in the world at that height. A tuned mass damper that helps to stabilise the building against violent motion has therefore been fitted at the top, the first of its kind for a residential building.