Before coming into the temple, you will find a really beautiful Buddhist temple in which there is a huge Buddha image. I think it is at least 5 m. high. This temple was really crowded, foreign and local people visit it to show their gratitude to Buddha. About the old complex it was used as a residential palace; it became a monastery in the reign of King Ramathibodi I. When King Borom Trai Lokanat commanded new living quarters built, this residential palace was given to be a temple area, thus originating Wat Phra Si Sanphet: The royal chapel does not have any monks and novice inhabitants
Built in the reign of King Boromtrilokanath, Wat Phra Sri San Phet was the biggest temple in the area at its peak and is historically very significant. The temple is situated in a compound (similar to that of the Grand Palace in Bangkok) that was originally used as a royal palace and home to a number of kings during the Ayutthaya period. The design of the temple inspired the design of the Emerald Buddha Chapel in Bangkok and holds three large Chedi containing the ashes of three Ayutthayan kings. These Chedis have come to symbolize the essential qualities of Ayutthayan-period architecture and are much published images. Wat Phra Sri San Phet is the main attraction in a complex that has come to be known as the ‘Ancient Palace’ which houses some buildings of key historical importance including Chantharakasem (or ‘Front Palace’), Phlapphla Chaturamuk, Phiman Rattaya Hall, and Wanglang (or ‘Rear Palace’) as well as remnants of the ancient Palace Wall and Gate. This is a large site visitors can wander through to get a genuine feel for the Ayutthaya’s historic past. Quiet and in a pleasant environment, Wat Phra Si San Phet and the Ancient Palace are well worth spending a bit of time looking over.
Admission to Wat Phra Sri San Phet is 30 Baht and the temple is open 08:00 to 17:30 daily.