Wat Khun Saen lies on the eastern side of the historic island, close to the old commercial district of Hua Ro, where Chinese and Indian merchants once conducted much of Ayutthaya's river trade in the kingdom's commercial heyday. The temple's name references a provincial governor's title, though the specific historical figure associated with its founding has been lost to record — a common gap in the documentation of Ayutthaya's smaller religious foundations.
The site preserves the foundations of a modest ordination hall and a single chedi of the bell-shaped form common to the mid-Ayutthaya period, its structure more intact than many comparable ruins thanks to relatively stable ground conditions in this part of the island. Brick walls rise to roughly waist height in several sections, allowing visitors to trace the original floor plan of the temple with unusual clarity compared to more thoroughly ruined sites nearby.
The temple's proximity to Hua Ro places it within what was historically one of the busiest commercial quarters of the old capital — a reminder that Ayutthaya's temples were never isolated religious enclaves but were woven into a dense urban fabric of trade, governance and daily life that has almost entirely vanished except for these scattered religious foundations.
Wat Khun Saen receives minimal visitor traffic and provides no formal facilities, making it a destination for those specifically seeking the quieter, less developed corners of the Ayutthaya ruins rather than a stop for casual sightseeing.
"Brick walls still standing waist-high near the old merchant quarter — a temple from when Ayutthaya was one of Asia's busiest trading cities"