Analysis of Typical Layout of Apartment Buildings in Indonesia

It is important to determine typical layouts of residential buildings, even in developing countries for standardization towards a zero-carbon society. In Indonesia, housing development in cities continues rising in parallel with high urbanization rates. This study aims to determine the typical layouts of apartments in Indonesia through qualitative and quantitative building typological analyses. A hierarchical cluster analysis was conducted using the building drawing information constructed across Indonesia from 1986 to 2021. A total of 268 public apartments and 268 private apartments from several major cities were included in the datasets, respectively. As a result, six typical layouts for public apartments and thirteen typical layouts for private apartments were determined for both 1BR and 2BR units. Furthermore, four typical unit layouts from public and private apartments associated with building-scale classifications were proposed, respectively, as the base models for the current typical apartments in Indonesia. The results showed that Indonesian public apartments tended to sacrifice semi-open spaces, such as a wide corridor and an internal void space, to increase the size of units and the number of rooms. Meanwhile, most private apartments were constructed with double-loaded corridor systems without internal voids, which potentially cause poor natural ventilation. The proposed typical layouts will be useful for further building simulations as standard testing models, such as to determine the appropriate cooling techniques for low-carbon apartments.

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