Phra Thihnang Suttaisawan Prasat is a royal hall located on —and part of— the east wall of the Grand Palace. On the upper floor it has a balcony that gives out on the street from where the King could watch over a parade or come out to greet his subjects.

The two-storey Royal Hall is located on —and part of— the east wall of the Grand Palace, situated between the Sakchaisit Gate, seen in the picture above, and the Thewa Phitak Gate, shown in this photo on the right.