The Thai pavilion was a gift to the City of Lausanne from His Majesty the King of Thailand in 2005 to mark the 60th anniversary of the accession to the throne of H.M. King Bhumibol Adulyadej and the 75th anniversary of diplomatic relations between Thailand and Switzerland.
H.M. King Ananda Mahidol (Rama VIII) and H.M. King Bhumibol Adulyadej (Rama IX) lived in Lausanne for 18 years, from 1933 to 1951, with H.R.H. the Princess Mother Mahidol and their older sister, H.R.H. Princess Galyani Vadhana Krom Luang Naradhivas Rajanagarindra.
The Thai pavilion is built in the Jaturamuk style, with four aspects and a Mandapa resembling a miniature of the royal palace. It is 6 metres wide, 6 metres long and 16 metres high, including the tip of the roof. The building showcases the excellence of Thai architecture and the traditional art of Thailand: fork-tail wood assembly, sculpture on wood, gold and glass decoration and gold leaf paint. These structures are not seen as religious buildings; they are part of a royal palace and are constructed for outdoor celebrations.
In Lausanne, the building was constructed in 2007 by Thai craftsmen in collaboration with the parks and promenades department. H.R.H. Princess Maha Chakri Sirindhorn, the daughter of H.M. King Bhumibol Adulyadej of Thailand, graciously accepted an invitation to preside over the inauguration of the pavilion on 17 March 2009.