In 1687, he moved the hancho (domain administration building) from Ninomaru to Sannomaru and used Ninomaru as a separate hancho (a retreat for his old age).
貞享4年（1687年）、藩庁を二ノ丸より三ノ丸に移し、二ノ丸を藩庁別棟（隠居所）とする。