As an Aussie, when I first traveled to Singapore I was stunned. I really want to live there now! The idea of living in a tall tower with a tiny apartment is, for some reason, really appealing to me.
I grew up in a 'dogs and garden' house so upon first arrival I too was stunned by the amazing sight of residential towers flanking airport-CBD highway. My prejudice of high-density tower living = cramped concrete misery was challenged and soon overturned. Singapore city planning really stretched the definition of what it means to be a livable city.
50 years since the nation's birth, more than a million housing units have been built in tiny Singapore. Today, SG has 90%+ home ownership, the highest in the world. More
here.
The architectural form has evolved too, to recently completed Pinnacle Duxton shown below, the tallest public housing complex in the world. Complete with skybridges with community skygarden. The ground level is foodies paradise. Once again proved that just because it is low-cost high density, doesn't mean it has to be a slum or soulless-Chernobyl or human suffering.
Basically, in the vein of this topic, there are slums (could be flat fringe sprawls or squatter towers, culturally homogenous/ ghetto or not), and low cost public housing projects (could be urban decay, could be clean and efficient starter homes).
Most of the tall buildings in the foreground are "typical" public housing. The red tile roofed buildings are conservation shophouses of Singapore's Chinatown, not far from CBD.