The temple was strictly reserved for royal ceremonies and functions, meaning no monks lived on the premises.
The three chedis were constructed by King Borommatrailokkanat and his successors to inter the remains of royal family members.
The original gold-covered Buddha statue inside was commissioned in 1500 and took over three years to complete.
Many of the temple's original bronze Buddha statues were decapitated or destroyed during the 1767 sack of Ayutthaya.
The base of the temple layout follows a strict geometric symmetry common to the later Ayutthaya period.
Wat Phra Si Sanphet served as the holiest temple within the Ayutthaya Kingdom's Royal Palace grounds until the city's destruction in 1767. Its most iconic features are the three restored bell-shaped Ceylonese-style chedis, which were built to house the ashes of three Ayutthaya kings. The site functioned exclusively as a royal chapel and never contained monks' living quarters. The temple once housed the Phra Si Sanphet, a 16-meter-high Buddha statue covered in 343 kilograms of gold, which was melted down by invading Burmese forces. The current ruins primarily consist of the brick bases of these chedis and the foundations of various royal viharns. It is located within the Ayutthaya Historical Park, a UNESCO World Heritage site. Restoration work has focused on structural stabilization of the masonry rather than full reconstruction of the wood-based superstructures. The site offers a clear architectural cross-section of the 15th-century Ayutthaya period.
The elevated walkway path looking directly toward the three aligned chedis provides the most iconic frame.
Visit during the late afternoon to experience the chedis illuminated by the setting sun.
Carry a portable umbrella or wear a wide-brimmed hat as there is very little natural shade among the ruins.
Bring sufficient water as the site is expansive with limited amenities inside the perimeter.
Attempting to climb or sit on the ancient brick walls, which is strictly prohibited and can cause structural damage.
Modest clothing covering shoulders and knees is mandatory; remove footwear before stepping onto any raised temple platforms.