Abstract
Housing quality (HQ) has been a long-standing concern for both developers and homebuyers. Currently, HQ depends on the expected profit and subjectivity of the developers, and homebuyers only have a passive choice of whether to accept housing with such quality. Asian housing supply markets have largely adopted the presale housing system. Under this system, developers are able to verify future occupants before commencing construction, enabling them to provide customized designs and differentiated quality items in order to meet user demands and value. Consequently, HQ can be enhanced. A cost–quality trade-off model was developed using a genetic algorithm to help decision-makers identify the optimal HQ differentiation strategy that simultaneously satisfies homebuyers’ expectations of quality and developers’ expectations of profits. The findings showed that the presale housing system effectively improves HQ. A 6% increase in homebuyers’ budgets can achieve the optimal quality improvement effect, while an 8% or more increase in developers’ construction costs in order to improve HQ can generate an additional premium for the developers.
Highlights
Developers typically prioritize profits and sales performance in the development of conventional housing projects in order to create quality items and facilities that are accepted and implemented in the market [1]
The system is developed under the Java Server Pages (JSP), Java environment, Apache Tomcat web container, and MySQL database
The mating convention for reproduction is that only the high-scoring individuals preserve and propagate their worthy characteristics from generation to generation, and thereby help in continuing the search for an optimal solution
Summary
Developers typically prioritize profits and sales performance in the development of conventional housing projects in order to create quality items and facilities that are accepted and implemented in the market [1]. Developers are able to verify future occupants during the initial stages of project development, enabling them to provide customized designs and differentiated quality items in order to meet user demand and values [5]. The presale system can be concurrently beneficial for environmental stewardship and profitability, and its implementation accords with the trend of sustainability, since a sustainable design emphasizes meeting users’ demands [7], improves the degree of satisfaction towards residential quality, and reduces later residential changes to construction and resource wasting
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