Abstract
In this study, We selected prospective purchasers of multifamily housing and conducted a questionnaire survey regarding the requirements of consumers regarding housing functions and also conducted an interview survey of housing suppliers (sales managers) regarding the methods they use to provide explanations to consumers and the content of their explanations. The results show that, as consumer demands, performance in the sound environment was cited as the highest priority demand, followed by the lighting and visual environment and then earthquake resistance capabilities, in that order. As performance in the sound environment, floor impact sound insulation capabilities were pointed out as an especially important factor. In addition, the results also clearly indicate that the consumers themselves have a low level of knowledge regarding housing performance and that there is a need for consumer education in order to be able to make precise performance requirements. Meanwhile, the results of the interview survey of housing suppliers (sales managers) indicate that the sales managers themselves have a low level of knowledge regarding housing performance and that it would be difficult for consumers to comprehend housing performance based on the explanations that they provide. It indicates, in particular, that there is a need for the reeducation of sales managers.
