The royal monastery a chief minister built on the Pa Sak, whose ordination hall carries murals of Lawichai-Kawi and a Tai Yuan rocket procession, commissioned by a provincial governor with royal permission in B.E. 2442.
วัดสมุหประดิษฐาราม · Wat Samuha Pradittharam
By the BAANLYY Editorial Team · Last checked 4 November 2026
| Official name | วัดสมุหประดิษฐาราม — Wat Samuha Pradittharam |
|---|---|
| Where | Suan Dok Mai, Sao Hai, Saraburi |
| Royal temple class | Third class royal temple, Saman (ชั้นตรี ชนิดสามัญ) The Fine Arts Department's own survey report of 23 August B.E. 2544 states it, and the Ministry of Culture's open-data record of important architecture states it identically; the Saraburi Provincial Office of Buddhism's list of the province's royal monasteries of 30 January B.E. 2569 includes this monastery and, alone among the five, gives it no sub-rank suffix, which is consistent with สามัญ. No instrument conferring the grade was found, and the Ministry of Culture itself hedges the date of the elevation with the word ประมาณ, approximately. |
| Monastic order | Maha Nikaya (มหานิกาย) |
| Ancient monument | Registered national ancient monument Royal Gazette vol. 119, special part 119 ngor, 4 December B.E. 2545, page 2 — ประกาศกรมศิลปากร เรื่อง ขึ้นทะเบียนและกำหนดเขตที่ดินโบราณสถาน, made under section 7 of the Act B.E. 2504, signed 6 November B.E. 2544 by Group Captain Arwuth Ngernchuklin, Director-General; item 4 of five, declaring พื้นที่โบราณสถานประมาณ ๑๒ ไร่ ๓ งาน ๘๐ ตารางวา Read at source from the department's own two-page scan, the second page being the 1:800 boundary plan. The declared area of 12 ไร่ 3 งาน 80 ตารางวา is about 20,720 m2, and the department's gazette-boundary layer holds a six-vertex polygon of 20,701 m2 — agreement to within a tenth of a per cent, with the register's own GPS point sitting inside the polygon about 22 m from its centroid. This is the cleanest boundary record of the six. Two corrections to what circulates. First, the instrument covers five monuments — three ruined temples in Tha Wung, Lopburi, this monastery, and the old Ang Thong courthouse — and it does NOT cover วัดเขาวง, which a compilation claims; the instrument itself was checked. Second, the registration is of an area with five structures designated inside it, which the attached plan marks with a star: the chedi, the ordination hall, the bell tower, the gateway up to the monks' quarters and the old two-story kuti. The murals are not separately registered; the ordination hall is the registered object and the paintings are inside it. Note also that the register's condition field still reads ยังไม่ได้ประกาศขึ้นทะเบียนโบราณสถาน, not yet registered — a verbatim carry-over from the pre-registration survey form of B.E. 2544 and not a current claim. |
| Coordinates | 14.554761, 100.857545 Fine Arts Department register, monument layer, monument 0000784, recorded in the register as a GPS fix; put through the register's own subdistrict polygon layer, which returns Suan Dok Mai in Sao Hai district, the subdistrict the monument's text record states, and independently confirmed to fall inside the department's own gazette-published boundary polygon about 22 m from its centroid |
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.
There is no chronicle citation, no royal order, no gazette entry, no foundation inscription and no archival document behind the founding account. The Fine Arts Department, the Ministry of Culture and the Ministry of Tourism all restate it, and the Ministry of Tourism's headline puts it in a different reign from its own body text. A university source says it plainly: เป็นวัดที่สร้างขึ้นตั้งแต่สมัยใดไม่มีหลักฐานแน่ชัด — no clear evidence establishes the period. If this monument needs one anchored date, it is the gateway inscription of B.E. 2453.
Everything about this monastery is better documented than its founding. The name is the clue to the founding: สมุหนายก, the office of chief minister of the civil departments, plus ประดิษฐ์ and อาราม, and the Fine Arts Department's account is that the man who held that office across the late reign of King Nangklao and the early reign of King Mongkut came upon a small temple called Wat Phai Cho Ko about 200 m west of this site, petitioned the King for leave to build, and that the King established the new temple as a royal monastery and named it after his minister's office. The Ministry of Culture puts the year at B.E. 2400. But the department's own survey report lists its sources at item 24, and they are a cremation-volume memorial book of B.E. 2544, a provincial cultural-council compilation of B.E. 2543, and the temple's own printed history. No chronicle, no royal order, no inscription of foundation. Everything the state says downstream is a restatement of that chain.
The murals are a different matter, and they are why this page exists. The department's record is dated and specific: in B.E. 2442, which is R.S. 118, there was a major repair of the ordination hall, the sala and eight monks' cells, and พระยาพิไชยณรงค์สงคราม, then governor of Saraburi — the man the temple's street is named after — sought royal permission to have the interior painted with scenes from the Kawi romance and with local customs. The Fine Arts Department conserved those paintings in B.E. 2525 and 2526 under a budget of 392,870 baht funded by the province, and published a report whose conclusions are catalogued by Silpakorn University: late Rattanakosin, powder pigment bound with glue, a color structure tending to green and indigo, and content comprising Lawichai-Kawi, Phra Samutthakhot and folk customs. Three later department surveys, in B.E. 2533, 2535 and 2539, record the same two recurring enemies — groundwater rising in the lower walls, and roof leakage cracking the corners of the drum walls.
What the paintings show is the point. The wall behind the principal image carries entertainments, the life of the ไทยวน people, and Phra Malai preaching to the denizens of hell; the wall opposite carries a rocket procession for rain and a กระทง rite; the right wall Lawichai-Kawi and the left Phra Samutthakhot, with Chinese houses, junks and Western ships as secondary incident and European recession used for depth. That ethnographic content is the evidence for who lived here. Silpakorn University's summary of a 1986 study of this and three neighboring Saraburi mural temples records the townspeople of the period as local Thai, Thai of Tai Yuan and of Lao descent, Chinese and Karen, living as kin in village-scale society with the temple as the center of it. Sao Hai is often described simply as Lao-settled; for this monastery the record points first to Tai Yuan, with Lao alongside, and the page says so.
The archaeology is modest and the department's honesty about it is worth preserving. A restoration of B.E. 2551 included excavation: a test pit at the chedi found the use level about a meter down and recovered nothing; beneath the ordination hall the original ground preparation proved to be local clay mixed with small brick fragments, compacted, with broken earthenware used as fill outside; and the square cement paving turned out to date from the restoration in the reign of King Chulalongkorn. Only one pit, between the chedi and the hall, showed clear ancient occupation, and the department's own conclusion is that this is insufficient evidence from which to construct the social and cultural story of an ancient community here. That restraint is part of the record and is kept.
The ordination hall: brick and mortar, plain white rendered walls with paired tall narrow windows along the flanks, a porch on square columns, a carved and gilded gable with bai raka and cho fa, and a กำแพงแก้ว around it with bai sema on pedestals. No source publishes the building's own dimensions; the Ministry of Culture gives the consecrated precinct as 20 m by 40 m, which is the ground and not the hall.
The murals inside, on all four walls and on the คอสอง band: Lawichai-Kawi on the right wall, Phra Samutthakhot on the left, entertainments and the life of the ไทยวน with Phra Malai behind the principal image, and a rocket procession and a กระทง rite on the wall opposite — powder pigment in glue on plaster, with a palette tending to green and indigo. No measured mural area is published.
The principal image, which the register describes as a gilded bronze Buddha in the maravijaya attitude. No lap width and no date is published for it.
The chedi, which the department's own 2544 photograph shows as a bell-form body with ring mouldings and a tall ringed spire on a substantial many-sided molded base, raised on a circumambulation terrace with a balustrade, stairs and an enclosing wall. The department's caption calls it round; the Ministry of Culture calls it octagonal and records that the founder built it to enshrine his mother's ashes at the same time as the hall. Neither publishes a height.
The bell tower: a small masonry หอระฆัง on a tall solid plinth with a side stair, with a pointed arched opening framed by molded foliate stucco and a spired crown.
The gateway up to the monks' quarters, whose crown is a naga figure with floral motifs and whose beam carries the inscription พัทธรายุวดี ร.ศ. ๑๒๙ — B.E. 2453 — naming the royal patron who restored the temple. It stands in a long rendered wall beside a two-story timber kuti.
The kuti themselves: the Ministry of Culture records eleven in the Thai hip-roof manner with pierced fretwork ventilation panels, built between B.E. 2466 and 2537 and still in use; the department's survey counted eight in B.E. 2544.
The setting: the compound fronts directly onto the Pa Sak river to the north, with route 3044 along the west, and a riverside sala and a sermon hall inside the gazetted boundary.
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.
| Hours | Not established from an official source. |
|---|---|
| Admission | Thai nationals: free. No foreign rate is published. |
| Dress | A working royal monastery, so shoulders and knees covered and footwear off inside the halls. No official source states a dress rule. |
| Photography | No source we found states a rule, so we print none. |
| Getting there | At number 2 ถนนพิชัยรณรงค์สงคราม, หมู่ 7, Tambon Suan Dok Mai, Sao Hai, reached from highway 3044, with the compound fronting the Pa Sak river. The Ministry of Tourism lists car, motorcycle and public bus. |
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.
The received account, which the Fine Arts Department repeats, is that it was built by เจ้าพระยานิกรบดินทร์ (โต), the chief minister of the civil departments, and that King Mongkut established it as a royal monastery and named it after that office. But the department's own survey report names its sources and all three are secondary compilations of B.E. 2543 and 2544, one of them the temple's own printed history. No chronicle, royal order or foundation inscription supports it.
Lawichai-Kawi on the right wall and Phra Samutthakhot on the left; behind the principal image, entertainments, the life of the Tai Yuan people and Phra Malai preaching in hell; and opposite it a rocket procession for rain and a กระทง rite. Chinese houses, junks and Western ships appear as secondary incident, and European recession is used for depth.
The Fine Arts Department's record is dated: in B.E. 2442, R.S. 118, during a major repair, the then governor of Saraburi sought royal permission to have the interior painted. The department conserved them in B.E. 2525 and 2526 and its published report describes them as late Rattanakosin work in powder pigment bound with glue.
Not quite. The registration of 4 December B.E. 2545 declares an area of 12 rai 3 ngan 80 square wa, and the attached plan stars five structures inside it as the monuments: the chedi, the ordination hall, the bell tower, the gateway up to the monks' quarters and the old two-story kuti. The Ministry of Culture records the temple's total landholding as larger than the gazetted boundary.
No official source says. It is in active liturgical use and the murals have been under formal conservation repeatedly since B.E. 2525, so a visitor should expect to ask at the monastery rather than assume the hall is open.
The Ministry of Tourism records no charge. No official source states opening hours, so none are given here; that ministry's directory publishes an inverted overnight window for this site, which is a fault in the field rather than an opening time.
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 Saraburi’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.
Last checked 4 November 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.