The purpose of this research is to reconstruct Kichijoji Village's land allotment using records from a land survey conducted in 1664. In the drafting process, coordinate geometry and versioning functions were used to maintain the accuracy and efficiency of the work process involved in searching for the precise land allotment. From the reconstructed land allotment, it was revealed that the conversion of the unit of length 1 “Ken” as approximately 1.97 m was used for the zoning of Kichijoji Village instead of the conventional conversion of approximately 1.82 m. This paper also points out the possibility that the land survey conducted by the urban planner of Tokugawa Shogunate with the Dutch East India Company before its development of Kichijoji Village influenced the difference in the conversion of “Ken.”
