Until the reign of King Rama IV. While His Majesty was in monk hood, he travelled to Nakhon Pathom and found the Phra Pathom Chedi that he regarded to be the largest pagoda of all.
When King Rama IV ascended to the throne, he commanded that a bell shaped Chedi be built to cover the former Chedi. The surrounding area was also renovated and improved. He also commanded that a water canal be dug to facilitate commuting, which was called Chedi Bucha canal. During the reign of King Rama V, the construction of railways to the south began, at that time Nakhon Pathom was still a heavily forested area. King Rama V also commanded that the town be relocated from Tambon Thana, Amphoe Nakhon Chaisi, to the Phra Pathom Chedi area as it used to be. Nakhon Pathom has been there ever since.