This study aims to clarify the state of samurai house and samurai classes residential district in the castle town Ueda at the end of Edo period, by researching historical materials, such as the plans, the regulations, the records, and the like. The results of the research are as follows; 1. Plans were drawn by black and red lines. Black-line means the official space. (That was offered from master to retainer.) And red-line means the part of addition. The extension of house was looked generally, besides it was often carried out at inhabitant's own expense. 2. The nine types of standard plan were fixed up, then those regulations were applied to a retainer's new house. 3. The influence of the regulation plans was confirmed about 70 per cent on the plans. But in almost all plans, the black-line's area was larger than standard's. As the number of regulation plans go up, the difference tend to increase.