The current "tenshu" of the castle was completed in 1811. It is a three-story building with three roofs, and a height of 14.4 meters. The design is smaller than early Edo-period varieties of "tenshu", and it was built on a corner of the inner bailey on the site of a "yagura", rather than the stone base of the original "tenshu". The small size was partly due to the restricted finances of the domain towards the end of the Edo period, but its location and design were also intended to alleviate concerns which might be raised by the Tokugawa shogunate should a larger structure be built. At present, it is a separate standing structure; however, prior to 1896 it had an attached gatehouse.