In addition, as high quality lime and lumber are found in Chichibu and Hachioji, he supplied building material in collaboration with Nagayasu OKUBO in Hachioji for the construction of Edo-jo Castle and the castle town.
他にも秩父や八王子は良質の石灰や木材が取れるため、江戸城や城下の建設のため、建材供給を八王子の大久保長安と連携しつつ行っていた。