This comparison is deliberately not a price ranking. SISB Rayong publishes a trilingual route from age two through secondary and 2026/27 tuition of ฿401,700–฿789,300. Belfry is a Montessori-informed British primary school for ages two to 11 with 2026/27 tuition of ฿301,000–฿395,000. Belfry's Year 6 exit and SISB's growing secondary operation are the central planning points.
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Both schools begin at age two and publish dated 2026/27 fees. SISB continues from EYFS and Singapore Primary toward Cambridge qualifications. Belfry combines British EYFS and English National Curriculum Key Stages 1–2 with a Montessori-informed teaching approach, then ends at Year 6.
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| Dimension | SISB Rayong | Belfry International School |
|---|---|---|
| School | Singapore International School Rayong | Belfry International School |
| Age span | Ages 2–18; new applications Nursery 1–Grade 10 | Ages 2–11; Nursery through Year 6 |
| Curriculum | EYFS, Singapore Primary, Singapore/UK hybrid Grades 7–8, Cambridge IGCSE and AS/A-Level | British EYFS and English National Curriculum Key Stages 1–2 with a Montessori-informed approach |
| Published tuition | Dated 2026/27: Nursery ฿401,700; Kindergarten ฿429,600; Primary ฿470,700–฿567,300; Grades 7–10 ฿609,300–฿650,700; Grades 11–12 ฿789,300. | Dated 2026/27 standard annual tuition: Nursery/Early Years 1 ฿301,000; Early Years 2 ฿326,500; Year 1 ฿371,000; Year 2 ฿383,400; Years 3–6 ฿395,000. |
| Named extras | Application ฿5,000; assessment ฿5,000; enrolment ฿220,000; deposit ฿50,000; resources, meals and ELS separate. | Application ฿4,000; registration ฿80,000; refundable deposit ฿30,000; catering, trips, clubs, events and other optional services are extra and unpriced. |
| Planning point | Fees reach Grade 12, but new applications stop at Grade 10. | Primary-only; plan the Year 6 transfer, confirm service costs and verify eligibility before using either published discount table. |
| Sources | campus overview · 2026/27 fees | admissions · 2026/27 fees · curriculum · OPEC listing |
| Live editorial | Read the SISB Rayong editorial | Read the Belfry editorial |
Both schedules are dated 2026/27. Request SISB’s entry, resources, meals, ELS and transport rows alongside Belfry's entry charges, catering, trips, clubs, events, transport, books, examinations and support.
SISB publishes 2026/27 tuition of ฿401,700–฿789,300. Belfry publishes 2026/27 standard tuition of ฿301,000–฿395,000 plus ฿4,000 application, ฿80,000 registration and ฿30,000 refundable deposit.
SISB moves from EYFS and Singapore Primary into Cambridge IGCSE and AS/A-Level. Belfry combines British EYFS and Key Stages 1–2 with a Montessori-informed teaching approach.
SISB’s tariff reaches Grade 12 while new applications stop at Grade 10. Belfry families must plan the Year 6 transfer, price every unlisted service and document discount eligibility.
The schools overlap only through primary. SISB combines English, Thai and Mandarin with Singapore and Cambridge stages; Belfry uses English within a British primary framework shaped by a Montessori-informed teaching approach.
Ask both schools to state the child’s proposed class, start date, age cut-off and following year. SISB publishes Nursery through Grade 12 fee rows, though new applications stop at Grade 10. Belfry publishes Early Years through Year 6.
Do not translate Grade and Year labels by number alone. Request the placement test, class equivalence, current cohort and written progression route.
SISB records English, Thai and Mandarin. Ask for weekly allocation, subject language, newcomer support and the transition from Singapore stages into Cambridge qualifications.
Belfry records English as the medium alongside Thai. Ask for the weekly language allocation, how teachers assess English readiness, how newcomers are supported and how progress is documented within project work as well as literacy and mathematics.
At both visits, request anonymised work and the report format. Observe how teachers explain unfamiliar tasks and whether language support builds independent subject learning.
SISB’s 2026/27 tuition runs from ฿401,700 to ฿789,300. Application and assessment are ฿5,000 each, enrolment ฿220,000 and deposit ฿50,000. Resources are ฿30,500–฿84,000, meals ฿26,400–฿39,000 and ELS ฿20,000–฿30,000 per term.
Belfry publishes standard tuition of ฿301,000 for Nursery/Early Years 1, ฿326,500 for Early Years 2, ฿371,000 for Year 1, ฿383,400 for Year 2 and ฿395,000 for Years 3–6. Application is ฿4,000, registration ฿80,000 and the refundable deposit ฿30,000.
Belfry tuition covers the regular programme only. Catering, trips, clubs, events and other optional services are extra but not priced in the fee document. Ask both schools for personalised complete totals.
SISB publishes Cambridge IGCSE and AS/A-Level after its Singapore stages. Confirm which senior grades currently operate, accept newcomers and offer each subject at the Rayong campus.
Belfry ends at Year 6. Ask which secondary schools recent pupils enter and what transcript, curriculum map and references support transfer.
Rehearse relocation after two years. Request the transcript, curriculum map, grading scale and teacher references each school would supply.
SISB publishes ELS at ฿20,000–฿30,000 per term. Belfry does not publish a usable language- or learning-support tariff in the current ledger.
If support matters, request the staff member, group size, minutes per week, review date, progress measure and exit criteria. Separate English acquisition from other learning needs.
Bring existing reports before assessment and ask admissions to state any limitations in writing.
SISB’s sequence reaches Cambridge IGCSE and AS/A-Level, but the Rayong campus opened in 2023 and new applications stop at Grade 10. Ask which secondary grades and subjects operate now.
Belfry has no secondary stage. Ask how Year 6 pupils are prepared for transfer, which destinations recent cohorts entered and what transition support is included.
For either school, request anonymised work, a sample transcript and the transition timeline.
Belfry appears in the OPEC international-school directory. Its Montessori wording describes an educational approach, not a separate qualification or accreditation. SISB’s current ledger record does not list a campus-level accreditation.
Compare teacher qualifications, class size, project documentation, homework and reporting cadence for the child's class.
SISB publishes a 2% full-year tuition discount, sibling tuition discounts of 5% for the second child and 10% for later children, and a 20% enrolment reduction from the second child. Belfry publishes a 5% annual-payment discount, reducing standard tuition to ฿285,950–฿375,250.
Belfry also prints a separate “4th year Family” table with another 5% reduction and annual-payment totals of ฿271,653–฿356,488. Do not assume this is open to a new family or cumulative: ask the school to state eligibility and the order of calculation in writing.
SISB is in Nong Taphan, Ban Khai; Belfry is in Nong Taphan, Ban Khai. Drive both routes at arrival and collection times, including work and sibling stops.
Neither current ledger record supplies a comparable transport quote. SISB excludes transport from standard fees. Both schools are day-only, so request an exact address quote and test vehicle time.
Save offers, fee schedules, calendars and placement answers together.
Arrive before the class begins and watch the transition from gate to room. Record how quickly the child separates, who welcomes them, which language adults use and whether the routine is understandable without repeated prompting. Ask what happens on a difficult morning and how parents are informed. A polished tour after children leave cannot answer these questions.
Ask for a starting assessment, mid-year report and anonymised work from the proposed class. At SISB, trace English, Thai and Mandarin into Singapore and Cambridge stages. At Belfry, trace English National Curriculum work through Key Stage 2 and ask how EAL pupils demonstrate readiness for mainstream lessons. Request examples from both project work and core subjects.
Record the balance of adult-led, child-initiated, individual and group activity during the visit. Ask how teachers adapt the same task for a child who is new to English, already reading or reluctant to join a group. The right environment is not defined by one teaching philosophy; it is the setting where staff can explain how this child will participate and progress.
Confirm arrival supervision, meals, allergies, illness procedures, late collection and activities. SISB prices meals and resources separately. Belfry says catering, trips, clubs, events and other optional services are extra, but its current fee document does not price them, so model the child's actual routine rather than comparing tuition alone.
Place both calendars beside the family’s work calendar. Count closures that require alternative care and ask whether holiday programmes are offered, separately registered or guaranteed to enrolled pupils. A school-year tuition comparison does not capture care purchased during long breaks.
SISB is in Nong Taphan, Ban Khai; Belfry is in Nong Taphan, Ban Khai. Verify each entrance, transport route and contract address before payment. Test gate queues, parking and the return journey.
Both schools are day-only. Belfry does not publish a current transport tariff, so ask whether the address is served, then obtain pickup time, route duration, supervision and price in writing.
For each school, finish the sentence: “This place works if…” Include the quoted total, language routine, classroom fit, support availability, care hours, travel ceiling and next-school plan. Then write the conditions that would trigger a review. This prevents a single attractive feature from hiding an unresolved cost or transition risk.
Run the same exercise for two future dates. At age six, both schools may be usable, but SISB's Singapore primary sequence and Belfry's English National Curriculum require different evidence. At age eleven, SISB may continue while Belfry requires a secondary transfer.
For a Belfry family approaching Year 6, ask admissions for a destination list that separates applications, offers and actual enrolments, then request the preparation calendar for assessments, references and records. For a SISB family considering the same age, confirm that the proposed Grade 7 cohort is operating, how the Singapore/UK hybrid is taught and which later Cambridge subjects are presently planned. Put those answers beside the child's likely relocation date. Continuity is valuable only when the next stage exists, accepts the child and supplies the subjects or support the family expects.
Before signing, compare the two schools’ invoice language line by line. For Belfry, include registration, deposit, catering, trips, clubs, events and every currently unpriced service. Record the published late charge of ฿100 per day and the withdrawal-refund schedule—50% before term, 25% during the first 15 days and zero thereafter—beside SISB’s payment and notice terms.
Also rehearse a mid-year move. Ask what notice is required, which reports and curriculum records would be released, how deposits are returned and whether prepaid services are refundable. Families using the Eastern Seaboard industrial corridor should test both routes at real collection time, because a lower fee cannot compensate for an unsustainable daily journey.
Ask how each school handles a mid-year departure before assuming either transfer will happen neatly at the end of a stage. Record required notice, reports supplied, outstanding-fee conditions and whether unused services can be refunded. A family expecting relocation should weight these documented terms alongside teaching and price.
Do not pay while a condition remains material and unanswered. Ask admissions to correct the offer email, retain both 2026/27 schedules and note who supplied every grade and support answer. That record makes the decision auditable.
Belfry publishes much lower headline tuition at every broad stage. Both schedules are dated 2026/27, but their curricula and inclusion sets differ, so compare personalised complete totals and qualification routes before ranking.
No. SISB publishes Cambridge IGCSE and AS/A-Level after its Singapore stages. Belfry follows EYFS and English National Curriculum Key Stages 1–2 through Year 6.
SISB publishes ages 2–18, with new applications through Grade 10. Belfry serves ages 2–11 and ends at Year 6.
Ask for grade availability, tuition, application, assessment, enrolment, deposit, resources, meals, transport, trips, devices, ELS and refund terms.
Include tuition, application, registration, deposit, catering, trips, clubs, events, transport, books, examinations, learning support and refund terms.
Use the decision framework above to weigh curriculum, fees, continuity, location and your child’s fit.