The purpose of this study is to investigate the traditional American houses in eighteen century and their specific styles at the historic pace of Deerfield. The results of this study were as follow: First, Village of Deerfield is founded by Henry Flynt and PVMA(Pocumtuck Valley Memorial Association). Their preservation and restoration has been achieved from the efforts of collection constantly and the concrete research of old houses. So, It should be reflected their way of approach to preserve and restore for old houses in Korea. Second, the traditional eighteen century houses in Deerfield had generally Colonial Style. Style of Colonial houses had a "L"shape exterior view and a flat facade and the front door made a symmetry with sash windows. A chimney had been installed in the middle of the roof and it usually had a gable with natural materials in a simple manner. Third, the most important factor to design houses was a front door and it had been decorated in luxury and in a display. Lastly, the traditional American houses in eighteen century had been greatly influenced not by the that of British which is commonly taken but by the various cultural backgrounds which represented regional characteristics and was rather simple.