This is the main building in the palace complex, two-storey structure of brick and mortar in a combination of Romanesque and Gothic styles of architecture. A special feature of the building is the huge pointed dome from which the Royal Standard was flown when the King was in residence. Frescos of beautiful flowers decorate the ceiling, while ornamental designs decorate the upper part of the wall. The door panels are gilded, carved wood characteristic of the Victorian period. The King's initials can be seen in decorative panels above doors of important rooms. The rooms on the first floor, including the dining room, drawing room and pantry, have beautiful frecos. Rooms of special interest on the second floor are:
The Main Hall
This was where the King gave private audiences or had informal meals/ It is decorated in a European style with a fireplace at one end. A portrait of King Vajiravudh was centrally placed on the wall above the mantelpiece.
The King's Bedchamber
The bedroom has a bathroom attached. The ceiling is decorated with a painting of a Buddhist palm-leaf text and a dragon, a sign of the zodiac and a symbol of the King because he was born in the year of the snake.
The Queen's Bedchamber
This was Queen Intharasak Sachi's room. There is a fresco in floral motif on the ceiling. The decorative design on the cornice features the peacock;s tail feather, an emblem of the Queen.
The King's Study
The room under the dome
