Where do rich people in Hong Kong live?

I'm curious to know, where exactly do the wealthy individuals in Hong Kong reside? Are there particular districts or neighborhoods that are known for their affluence, and what factors contribute to these areas being popular among the rich? Are there any notable landmarks or exclusive communities that are synonymous with high-end living in the city? I'd appreciate if you could elaborate on the characteristics of these residential areas and the lifestyles of those who inhabit them.