After peaking at 717,659 hectares in 2002, Japan's exclusive residential land area shrank to 711,321 ha by 2023—a retreat of 6,338 ha (0.9%) over 21 y

Portal Site of Official Statistics of Japan website (https://www.e-stat.go.jp/).

from Japan Japan's exclusive residential area — land used solely for housing, not mixed uses — reached an all-time high of 717,659 hectares in 2002, then retreated to 711,321 ha by 2023, a decline of 6,338 hectares (0.

9%) over 21 years. The 48-year time series from the Statistics Bureau of Japan shows a dramatic expansion from 590,933 ha in 1975, followed by a long plateau and a gradual downward tilt.

The steady climb to a historic peak Between 1975 and 1990, exclusive residential land expanded by nearly 76,000 ha , from 590,933 ha to 666,580 ha , mirroring Japan's rapid post-war urbanization and housing boom.

Growth continued through the 1990s—albeit more slowly—finally reaching the 717,659 ha peak in 2002. At that point, the residential footprint was 21.5% larger than in 1975.

A demographic turning point flattens the curve After 2002, the total area barely moved.

In the 21st century, the annual figures have stayed within a 3,000 ha band, with the highest reading being 717,659 ha and the lowest 711,321 ha in 2023.

The sustained plateau coincides with Japan's population decline and a shrinking number of households, which dampens demand for new residential plots.

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