Hong Kong is among the world’s most prosperous cities, but it’s also a tiny coastal area struggling to cope with its enormous population.

Housing 7.5 million residents in an area of 427 square miles (1,108sqkm) is a challenge that requires inventive solutions, from luxury micro-apartments built into old drainpipes to the tiny coffin and cage homes of the city’s poorest. Yet, it remains the most unaffordable place to live in the world.

 Click or scroll on and discover the ingenious – and desperate – housing solutions in this overcrowded city...