The Ananda 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, 112.50 m and 49.50 meters in height, with a large dome in the centre surrounded by six smaller domes.

The construction of the Ananda 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 it was Finally completed in 1915. The constructino took eight years, and the total budget came to 15 million baht.

On the interior of the domes are paintings depicting the history of the Chakri Dynasty, from the first to the sixth reign. These paintings by Mr. C. Riguli and Prof. G. Chini are as follows :

On the interior of the dome on the north side is a paintings of His Majesty King Phra bhudhayodfa (Rama I), during the time when he was titled Somdet Chao Praya Maha Kasatsuk, upon his return from the war with Cambodia.

On the Eastern Dome is a painting of Their Majesties King Phra Phutta Loetla Napalai (Rama II) and Phra Nang Klao (Rama III) supporting art.

On the Western Dome is a painting of His Majesty King Mongkut (Rama IV)’s coronation at the Dusit Maha Prasart, Busabok Mala Grand throne in 1911.

The walls of the Ananda Samakhom are decorated with the Royal Monograms of His Majesty King Vajiravudh, decorated with the garuda, the naga, the Erawan in natural surroundings and paintings of Thai and European children. Along the balcony of the central dome are ‘art nouveau’ paintings of European ladies holding garlands of flowers.

After the change from an Absolute Monarchy to a Constitutional Monarchy on the 24th of June 1932, the Ananda Samakhom Throne Hall was used for many official functions, as was the wish of His Majesty King Chulalongkorn as well as holding the meetings of the Members of Parliament.

Beginning from the vaulted ceiling to the north of the main Throne Hall, we can see a grand painting representing King Rama I, or Phrabhudhayodfachulalok, at the time he was still holding the position of General Chakri, or Somdej Chao Phraya Maha Kasatsuk; on his return from battle the entire army and officials of the state offered him the Throne so he could rule the land which was in turmoil.

To the south of the eastern dome is depicted King Rama II making a tour of the city seated on his Royal Palanquin, behind which are scenes of the constructing of Pha Prang of pagoda at the Temple of Dawn which the King enlarged so that it would glority the city.

Last,to the north of the eastern dome is seen King Rama III also on a tour of the city seated on his Royal Palanquin. The background depicts the Padej Dasakorn Fort, the pagodas at Prajetupon Temple and the Rajmontian Place at the Grand Palace, all of which the King constructed and repaired for official affairs during his reign.

The ceiling of the dome to the west portrays King Rama IV seated in front of Phra Budha Jinasi Image. To his left and right we can see an assembly consisting of ecclesiastics of different religions and the declaration of religious liberty in Thailand.

The ceiling to the south of the main Throne Hall show the familiar sight of King Chulalongkorn, or Rama V the Great liberating the slaves and abolishing slavery completely from the Kingdom.

The dome ceiling to the east of the main Throne Hall depicts King Rama VI as his Coronation in the year 1911 sitting on the Busabok Mala Throne at the balcony of the Dusit Maha Prasart Throne Hall.

In the middle dome the biggest dome of the Throne Hall is inscribed with the Royal initial of His Majesty King Chulalongkorn. And the ceilings of the Throne Hall are alternately inscribed with the royal styles and titles of King Chulalongkorn and King Vajiravudh, signifying that this Throne Hall was built during the reigns of Their Majesties.