Built at the request of a French missionary, Father Joseph Pascal in 1809 by a French architect, the Assumption Cathedral was completed in 1821 at the time of King Rama II designed. The original cathedral was built from materials imported from France and Italy. The name was given in the cathedral to celebrate the Assumption of the Virgin Mary.

The church has a central role in the missionary movement of the 19th Century played. The cathedral is part of a complex with the Convent of the Assumption Catholic Mission of Bangkok’s Assumption Printing Press and the presbytery, which was inhabited by the missionaries during their stay in Bangkok.

The church underwent major renovations in 1909 and 1910 and later became a theromanesque have style during the years 1910 to 1918. During the Second World War in 1942 in nearby buildings such as the cathedral was heavily damaged, the church was repaired and renovated in the 1980s and 1990s, now adorn the windows of the church. The cathedral consists of a rectangular structure with a high red brick exterior, apart from the surrounding white buildings. The cathedral has a high ceiling decorated with high towers on the way to church.

The church is 100 meters from the French embassy. It is the largest Catholic church in Thailand and is the most important church in the Archdiocese of Bangkok. Thus in 1984 the church was visited by Pope John Paul II during his visit to Thailand. The church is located at 23 Oriental Avenue, New Road, in the district of Bang Rak, Bangkok. To stay, Bangkok serviced apartments are available to stay at Grand President in Bangkok, a popular serviced apartment in the city.