[2] Indonesia, formerly the Dutch East Indies, first opened its representative mission in Bangkok under the name of INDOFF in 1947, which was located at a small soi beside Si Lom Road and headed by Izak Mahdi.

Mas Isman, then Indonesian Ambassador to Bangkok, laid the first cornerstone on the ceremony, and the Embassy temporarily rented 75 Phaya Thai Road as office during the construction period.

It was not until September 1960 that the staff moved into the newly completed complex, which contained offices for Embassy sections, Ambassador's residence and facilities like meeting room, gymnasium, tennis court, and library.

[2] The Embassy-founded Indonesian School of Bangkok (opened on 6 October 1962) was also located inside the Embassy compound on Petchburi Road.

[5] The Indonesian Consulate-general in Songkhla, another diplomatic mission of Indonesia to Thailand, was established with the background of Indonesia–Malaysia–Thailand Growth Triangle's formation in 1993.