Abstract
In the coming decades, affordable housing in sub-tropical cities will accommodate a large portion of the earth’s projected population growth. Hong Kong’s public housing program, through seventy years of development, offers valuable lessons in planning high-density and liveable communities in this climate. This article presents a systematic analysis of the design and layout of Hong Kong’s public housing estate layouts. Based on newly reconstructed three-dimensional planning data, the article analyses the spatial characteristics of 108 housing estates built between 1954 and 2020. Our evaluation shows how safety, privacy, views, and climate considerations have improved tower block and estate layouts. The analysis of planning metrics reveals a search process for the optimum balance between land-use efficiency and liveability throughout the decades. Increased construction heights have helped to reduce population densities and crowded living conditions. Pressures are increasing, however, to accommodate residents’ recreational needs within the decreasing amounts of shared in-between space.
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