The Amporn Sathan Throne Hall is a 3-storey royal residence with an H-shaped layout, with two rectangular buildings placed parallel to the north and south, connected by Art Nouveau and Moorish-style vertical buildings. Divided into 3 floors, consisting of 2 parts: the Amporn Sathan Throne Hall And the Udon Phak Throne Hall connected by bridges both on the upper and lower floors. The distinctive feature is at the 2 front porches, which are made of 3-tiered curved walls. applied to geometric shapes The border on the doors and windows is a long stripe pattern depicting flora in fresco style draped around the building. There are also metal railings and balustrades in geometric patterns with flowers and metal. The interior walls of the building are decorated with stucco and dry plaster drawings depicting plants and birds, painted by Italian artist Cesarre Ferro.