"East Palace") traditionally does not refer to a single location, but to any residence of the imperial crown prince.

Additional renewal works took place in 1997 (installation of an elevator for wheelchair users, barrier-free design, seismic reinforcement).

A major series of renewal works took place for a year in 2008–2009, during which time the Prince lived temporarily in the smaller Akasaka East Palace (赤坂東邸) of the estate, which was renamed for the occasion Temporary Togu Palace (東宮仮御所, Togu karigosho).

Towards the beginning of the 10th century, the Shōyōsha (昭陽舎), located inside the Dairi, came to be generally used as the Tōgū palace.

The Takanawa Residence was used as the Tōgū palace for the early years of Hirohito, future emperor Shōwa.