Hong Kong is the most vertical city in the world according Emporis Skyline Ranking, beating cities like New York, Singapore, or Sao Paulo in the number of high-rises (with over 12 storeys) or skyscrapers (over 100 and 150 meters in height), also beats all records of proportion of population living above any given storey number, but it has been recently defeated by Dubai in terms of supertalls (over 300 meters).
The massiveness of skyscrapers contrasts with the extremely small apartments, typical size is 35-45 sqm for 3-room and 50-60 sqm for 4-room. 3-room is most common apartment type, but today there are more 4-room under construction. Same for Macau too. Minimum ceiling height is 2.5 meters.
Once you leave Hong Kong Island and Kowloon, you enter in a very different world. New Territories include few “New Towns” less dense, but still with massive apartment towers. Unlike Singapore which is fully urbanized, HongKong also have rural areas, low-density village houses in New Territories, that foreigners call them “slums”. Hong Kong have lots of nature, scenic roads, forest walks, hiking trails, etc.
Price of typical, 50 sqm apartments vary from 2 million HKD (250,000 USD) in New Territories to over 6 million HKD in Hong Kong Island, even higher prices in Mid-Levels.