In the Heisei period, the number of Tenshu constructions with by concrete and so on has decreased, and along with the Agency for Cultural Affairs, which has made its policy for restoration stricter, the number of more accurate restorations with wood, such as Kakegawa-jo Castle and Ozu-jo Castle, has increased.
平成期にはコンクリート造りなどでの天守の建設は減り、また、文化庁の復元方針の厳格化に伴い掛川城や大洲城などのように木造による、より忠実な復元が増えている。