The Ananta Samakhom Throne Hall was constructed in the Italian Renaissance and Neo Classic style of architecture. The exterior is decorated with marble from Carrara, Italy.
The Throne Hall is a two storey marble construction approximately 49.50m x 112.50m. and 49.50 meters in height, with a large dome in the centre surrounded by six smaller domes.
The construction of the Ananta Samakhom Throne Hall was carried out during the later years of His Majesty King Chulalongkorn's life. He passed away in 1910 and to fulfill the late wish of His Majesty King Vajiravudh (Rama VI), it was finally completed in 1915. The construction took eight years, and the total budget came to 15 million bath.