The purpose of this study is to clarify how historic buildings in Aikawa remain and to understand design characteristic of those buildings. This is to make a basic report for expected district designation and establishment of design guidelines. Major results are as follows: 1) 776 historic buildings were counted, 2) Among those we extracted representative 14 types by design characteristic in 440 buildings that we judged to be town houses. So design characteristic of town houses are various, 3) There are many one-storied house type in Kamimachi, and many two-storied house type in Shitamachi.