For the purpose of revitalizing traditional architecture, we considered the characteristics of a traditional architecture cluster with regard to cross ventilation, and from an environmental engineering point of view, we proposed techniques to improve the surrounding environment. In this report we make use of and improve the urban area model used in a prior report, as well as use CFD to take into account the effects of surrounding topography. To improve the urban area model, we make detailed computations of the wind pressure coefficient distribution. Second, we reproduced in more detail the shape of the target residence,and performed a detailed analysis.From this result,we analysis related to the internal wind speed of the target residences.