In this paper we argue the coincidence of distribution area of Honmune style minka and the territory controlled by the Ogasawara, the Constable of Shinano. The factors of the coincidence are as follows: 1. The Ogasawara made it their policy to give members of the local gentry permission to erect decorative gables in the Sengoku period. 2. Under the peasant proprietorship of the Edo period, these of jizamurai descent and village officials expressed their status through minka design. 3. The feudal lord allowed this because it was conducive to stability and smooth collection of land tax. In conclusion, the Honmune style originated in medieval times and revived at the Edo period.