Ratchaburi · Mueang Ratchaburi

Wat Khlong, Khu Bua

The largest monument of the Dvaravati town of Khu Bua — a laterite platform forty-three meters long that the Fine Arts Department reads as an assembly hall.

วัดโขลง · Wat Khlong

By the BAANLYY Editorial Team · Last checked 3 October 2026

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The record

What the official record says

Official nameวัดโขลง — Wat Khlong
WhereKhu Bua, Mueang Ratchaburi, Ratchaburi
Royal temple classNot established from an official register.
Monastic orderNot recorded in any register we could read.
Ancient monumentRegistered national ancient monument
Royal Gazette vol. 79, part 97, 30 October B.E. 2505, with a land boundary of 6 rai 2 ngan 7 square wa
Announced on 22 October B.E. 2505 and published on the 30th, over the signature of the Director-General. The instrument names the monument วัดโขลง, in Tambon Khu Bua, Amphoe Mueang Ratchaburi, and the area it states matches the register to the square wa. The department's own regional office files the same monument under a different name, Ancient Monument No. 18, and both names are correct.
Coordinates13.486527, 99.836185
Fine Arts Department national monument register, record 0004806, which places it in Tambon Khu Bua, Amphoe Mueang Ratchaburi — the subdistrict the B.E. 2505 instrument also names. It falls inside the Khu Bua enclosure, among the other numbered monuments the same register carries.
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Where Wat Khlong is

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Founding

When was it founded — and what actually establishes that?

Thai temple histories mix two different kinds of statement, and this guide keeps them apart. What a register, a gazette entry, an inscription or a dated royal act shows is one thing. What the chronicles and the temple itself hold is another, and it is worth telling as what it is.

What the record showsThe Fine Arts Department attributes the building to the Dvaravati culture and dates it by comparison with the base of Khao Khlang Nai at Si Thep; the department's excavation in B.E. 2537 established the measurements of the platform and found the niches and pilasters that carried its stucco figures.

No founding date is established for this building and none is given here. What the record carries is a cultural attribution, an excavation and a measured platform. The department also marks its reading of the function as a presumption rather than a finding: it reasons from the shape of the base that this was a vihara, a hall where people gathered, rather than a reliquary mound.

History

The history of Wat Khlong

Khu Bua is a walled town with a rounded-rectangular plan, a moat and an earth rampart, lying south of modern Ratchaburi, and it was a real place for centuries before anything we would call Thailand existed. Dozens of monuments are scattered across it, numbered by the Fine Arts Department rather than named. Number 18 is the biggest and tallest of them, and it sits almost at the center of the town. That is a fact about planning rather than about architecture: whoever laid Khu Bua out put this building in the middle on purpose.

The department excavated it in B.E. 2537 and came away with figures. The base is about 22.20 meters wide, 43.50 meters long and 5.5 meters high. On the east side a brick staircase climbs to a circumambulation terrace on the upper level. The platform itself is laterite, and its outer faces are articulated with niches and engaged pilasters; the department's reading is that each niche once held a stucco figure of a Bodhisattva. Just off the northeast corner there is a small square brick building, which the department takes to be a later addition.

Two things follow from those Bodhisattva figures, and the department states both carefully. The first is that this was most likely a Mahayana foundation rather than a Theravada one, which matters because the Dvaravati material elsewhere in Thailand is usually read the other way. The second is about function: the department compares the base with Khao Khlang Nai at the heart of the ancient town of Si Thep in Phetchabun — a monument this guide has already written up, from the other end of the same comparison — and concludes from the resemblance that number 18 was a vihara, a hall where people gathered, not a stupa. It presents that as a presumption, and so does this page.

What confuses visitors is the name. The register calls the monument วัดโขลง and codes it a deserted monastery; the department's regional office calls it Ancient Monument No. 18 and adds Wat Khlong Suwannakhiri in brackets; and the register's own note on present condition says simply that it stands inside Wat Khlong Suwannakhiri. All three are true at once. The ancient platform is the registered monument, the living monastery of almost the same name grew up around it, and you will be walking through the second to reach the first.

On site

What you actually see

A laterite platform about 43.5 meters long and 22.2 meters wide, standing 5.5 meters high. The measurements are the department's own, taken at the B.E. 2537 excavation.

A brick staircase on the east side climbing to the circumambulation terrace on top, which is the route the building was designed to be used by.

Niches and engaged pilasters articulating the laterite facing of the base. The department's reading is that stucco figures of Bodhisattvas once stood in them; what survives is the architecture that held them.

A small square brick building against the northeast corner of the platform, which the department takes to be later than the monument it adjoins.

The line of the Khu Bua town moat and rampart around all of it, and the other numbered monuments of the group scattered through the fields, several of which carry their own registrations and land boundaries.

Visiting

Visiting: hours, admission, dress and photography

This is a working place of worship for millions of people rather than an attraction, and it is treated as one at the gate. Where a figure below is blank, no source we are prepared to cite states it.

HoursNot established from an official source.
AdmissionNot established from an official source.
DressYou reach the monument through a working monastery, so dress for that: shoulders and knees covered, shoes off inside any building.
PhotographyNo source we found states a rule, so we print none.
Getting thereIn Tambon Khu Bua, south of Ratchaburi town, inside the grounds of Wat Khlong Suwannakhiri and near the middle of the Khu Bua town enclosure.
Before you rely on the figures aboveNo official source consulted publishes opening hours or an admission figure. The Khu Bua group includes several other separately registered monuments nearby, and nothing read here states whether any of them is ticketed.
Open

What we could not establish

Every temple reference repeats claims nobody has checked. These are the ones we went looking for and could not stand up, listed so you know exactly where this page stops.

FAQ

Wat Khlong: common questions

Is Wat Khlong a temple you can attend a service at?

Not the monument itself. The registered monument is an ancient platform with no building on it. The living monastery around it, Wat Khlong Suwannakhiri, is a working wat and is how you reach the site.

Why is it called Ancient Monument No. 18?

Because the Fine Arts Department numbers the monuments of the Khu Bua town rather than naming them. The register files the same monument as วัดโขลง and the regional office as number 18; both refer to the same platform.

Was it Mahayana or Theravada?

The department reads it as Mahayana, from the Bodhisattva figures it says once stood in the niches round the base.

How big is it?

About 43.5 meters long, 22.2 meters wide and 5.5 meters high, measured by the department at its B.E. 2537 excavation.

Is there an admission charge?

No official source consulted publishes one, or any opening hours.

Nearby

Where to go from here

Before you go, read the guide to Buddhism and temple etiquette in Thailand — dress, footwear, where photography is not welcome and how to behave around monks. The rest of Ratchaburi’s temples are covered here too.

Every temple here sits in a place worth reading about on its own terms. The nationwide temple guide covers the other provinces to the same documentary standard as this page, and says on each one what the record establishes and what it does not.

If you are thinking about more than a visit: work out which Thai visa route fits your situation, and see what is available to rent and buy in residences across Thailand.

Sources & References

Sources & References

Last checked 3 October 2026

Every fact on this page is drawn from the sources above. Where they disagree, this page says so rather than choosing silently. Registrations, fees, hours and access change; confirm anything you are relying on with the authority concerned. BAANLYY LLC is a Nevada company and a listing portal, does not represent any temple, and offers no legal or religious advice.