Most early street houses in Taiwan gathered at the river port villages which were built for river transportation. With the land transportation had been developed, street houses didn’t distribute to the coast or the river mouth. At the same time, the street houses were found in interior areas or the mountainous regions(gradually). The study of street houses in the interior and the mountainous regions are less. Consequently, the object of this research is to study Town House (a kind of street houses which were developed in interior) in Tien-Chong.