The table elucidates the variations in flat sizes and the corresponding living space per individual across three distinct decades: the 1980s, 1990s, and 2000s.
Overall, there is a discernible trend of diminishing average household sizes coupled with fluctuations in flat sizes and living space per person across the specified periods.
In the 1980s, 3-room flats measured 69 square meters, accommodating an average of 4.6 residents, which translated to 15 square meters of living space per person. Conversely, during the 1990s, the 3-room flats exhibited a notable increase to 100 square meters, offering 26 square meters of living space per individual, although the 3-room configuration of that decade remained unspecified. By the 2000s, 3-room flats reverted to a reduced size of 67 square meters, corresponding to a living space of 19 square meters per person. In stark contrast, the 4-room flats consistently decreased in floor area from 105 square meters in the 1980s to 85 square meters by the 2000s, with living space per person fluctuating initially but stabilising at 26 square meters by the final decade.
Examining the 5-room flats, these initially provided 123 square meters in the 1980s, supporting 21 square meters of living space per person, before peaking at 110 square meters with an enhanced allocation of 32 square meters per person in the 2000s. Meanwhile, the Executive flats began with 145 square meters in the 1980s, saw a minor contraction to 140 square meters in the 1990s, yet simultaneously improved individual living space from 24 square meters to 28 square meters, reflecting an overall positive shift attributable to the declining household size. It is imperative to note that the emergence of these trends underscores the complex interplay between household dynamics and residential space allocation over the examined timeframe.