“Hamamatsu Castle was approximately 500 metres north–south by 450 metres east–west. The location has few natural barriers, but the castle utilizes the natural slope of the Mikatagahara plateau, with the donjon at the highest point in the northwest. To the east was the inner bailey, followed by the second bailey and third bailey roughly in a straight line to the southeast. The stone walls were constructed in the nozura-zumi style using unshaped stones, with the ruins of the fortifications of the original Hikuma Castle also forming part of the outer defenses.”