Estimation algorithm for predicting the performance of private apartment buildings in Hong Kong

Yung YAU*, Daniel Chi Wing HO, Kwong Wing CHAU, Wai Yip LAU

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

16 Citations (Scopus)


Purpose: For the sake of public health and safety, a territory-wide evaluation of the quality of buildings in Hong Kong is crucial. However, it is a lengthy process to assess the performance of the whole stock of buildings in the city. To get around this predicament, this paper aims to propose a statistical approach for a fast and reliable building evaluation algorithm using the Building Quality Index (BQI) developed by The University of Hong Kong. Design/methodology/approach: Using the BQI assessment framework, the condition of 133 and 160 private apartment buildings in Yau Tsim Mong and the Eastern District respectively are assessed and rated. The data of the Yau Tsim Mong buildings are used to estimate a regression model associating the relationships between building performance, measured by the BQI, and other exogenous factors. The resulting model is then employed to predict the performance of the surveyed buildings in the Eastern District. Findings: The regression analyses on the Yau Tsim Mong data indicate that building age, development scale and building management mode are significant determinants of the existing condition of the sampled buildings, echoing the findings of previous studies. BQI scores of buildings in the Eastern District are estimated using the resulting regression model, and there is a highly positive relationship between the predicted BQI and in-situ BQI scores. Originality/value: The study is the first in the literature to provide an algorithm for estimating building condition in a densely developed high-rise urban area.

Original languageEnglish
Pages (from-to)372-389
Number of pages18
JournalStructural Survey
Issue number5
Publication statusPublished - 6 Nov 2009
Externally publishedYes

Bibliographical note

The authors gratefully acknowledge the financial support provided by the Research Grant Council of the Hong Kong Special Administrative Region (HKU 7107/04E and HKU 7131/05E), the Small Project Funding of The University of Hong Kong and the HKU Research Group on Sustainable Cities Seed Grant. The authors would also like to acknowledge the Buildings Department and Home Affairs Department of the Government of the Hong Kong Special Administrative Region for their kind provision of information and support for the study. Last but not least, they would also thank the insightful comments made by the participants of the World Sustainable Building Conference held in Hong Kong in December 2007.


  • Buildings
  • Hong Kong
  • Quality


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