Wat Noi or the "little Monastery" was located on the city island in the western area of Ayutthaya at Pratu Chai sub-district.
The monastery was situated south of "Wang Lang" or the Palace of the Rear. Wat Kasatra stood on the opposite bank at that time of the Lopburi River; at present the Chao Phraya River.
There are no traces anymore visible of the monastery above ground level.
Historical data about the monastery and its construction are unknown.
The site is indicated on Phraya Boran Rachathanin's map drafted in 1926 as "Wang Noi" or little palace and is indicated in an identical position on a mid-19th century map. In front of Wat Noi was the boat landing called "Dan Lom". The oldest map indicates the existence of two chedis.
The temple probably once belonged to the premises of the former palace.
Text & map by Tricky Vandenberg - July 2010 Text review April 2011