The average household size has been decreasing over the past 3 decades. The average household size in 1980s was 4.6, 1990s was 3.9 and 200s was 3.4. This might have caused a increase in the living spaces per person in multiple flat types, as shown by the data.
The flats are categorized as – 3-room, 4-room, 5-room, Executive.
The 3-room flats of the 1980s had a floor area of 69 sq m, while the living space person has been 15 sq m. While we dont have information about the 3-room flats of the 1990s decade, we can consider the values to have been increased, since the floor area and living space per person has been raised to 65 sq m and 19 sq m on 2000s.
There has been gradual downturn of floor area and upturn of living space of the 5-room flats. Similarly, floor area of 4-room flats have also declined from 105 sq m in 1980s, 100 sq m in 1990s, 90 sq m in 2000s. The living space per person of 4-room flats although decreased in 1980s, seems to remain stable in 1990s and 200s.
The executive flats has seen a slight decline of floor area over the decades, indicated by their reduction in floor area from 145 sq m in 1980s, to 140 sq m in 1990s, though the living space that an individual has improved from 32 sq m to 36 sq m due to general trend of reduction in household size.