SISB Rayong vs
Highgate.

Shared early years.
Different runway.

Both schools publish dated 2026/27 tuition and both are still adding grades. SISB’s current admissions stop at Grade 10 despite fees through Grade 12; Highgate opens in August 2026 through Year 6, plans Senior School for 2027/28 and has conflicting official boarding dates.

// In this guide → SISB Rayong editorial ↗ · Highgate editorial ↗ · Rugby vs Regents ↗ · Garden vs Regents ↗ · Regents vs Garden ↗ · MIS vs TPIS ↗ · British schools hub ↗ · Boarding schools hub ↗

Both fee schedules are dated 2026/27, but headline tuition omits material charges. Request SISB’s grade, entry, resources, meals, ELS and transport rows alongside Highgate's enrolment, security deposit, uniform, examinations, visits, bus and designated-activity rows.

Cambridge routes.
Different foundations.

Both schools describe eventual routes through age 18, but current availability is narrower. SISB combines three languages and Singapore stages with Cambridge qualifications; Highgate opens with British Pre-Prep and Junior School while its senior pathway remains phased.

Match the actual attendance offer

Ask both schools to state the child’s proposed class, start date, age cut-off, core hours and following year. SISB publishes Nursery, Kindergarten, Primary and Grades 7–12 fee rows; Highgate's opening tariff covers Pre-Nursery through Year 6, with half-day and full-day early-years choices. Similar ages do not ensure identical placement.

SISB’s new-applicant range stops at Grade 10 despite senior fees. Highgate's August 2026 opening cohort stops at Year 6, Senior School is planned for 2027/28 and later grades need a written opening schedule.

Make language exposure visible

SISB records English, Thai and Mandarin. Ask for the weekly allocation, subject language, newcomer support and transition from Singapore Primary into Cambridge stages.

Highgate records English as the medium alongside Thai and Mandarin. Ask how British primary stages appear in current work and how Years 10–11 prepare pupils for A-Level selection.

At both visits, request anonymised work and the report format. Observe how teachers explain unfamiliar tasks, differentiate work and support pupils new to English.

Build complete first-year totals

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.

Highgate's 2026/27 opening-cohort tuition runs from ฿375,000 to ฿795,000. Application is ฿5,500, one-time non-refundable enrolment ฿200,000 and the refundable security deposit ฿100,000.

Highgate says tuition includes lunch, snacks, general learning resources and a wide range of after-school activities. Uniform, external examinations, educational visits, bus service, school photographs and designated co-curricular options are extra, but their tariffs are not published.

Create totals for cash before attendance, the complete first year and a normal recurring year. Mark refundable deposits, one-time charges, discounts, every unpriced service and support triggered by assessment.

Plan both transfer points

SISB publishes Cambridge IGCSE and AS/A-Level after its Singapore stages. Confirm which senior grades currently operate, accept newcomers and offer each subject.

Highgate plans IGCSE and A-Level within a phased British route. Ask for the grade-opening calendar, current OPEC approvals, subject-launch thresholds and the contingency if a planned senior year or option is delayed.

Rehearse relocation after two years. Request the transcript, curriculum map, language evidence and teacher references each school would supply.

Audit support without assumptions

SISB publishes ELS at ฿20,000–฿30,000 per term. Highgate's current ledger does not publish a language- or learning-support tariff, so treat the provision and price as unknown until admissions supplies them.

If support matters, request the staff member, group size, minutes per week, review date, progress measure, exit criteria and price. Separate English acquisition from other learning needs.

Bring existing reports before assessment and ask admissions to state any limitations in writing.

Test the senior pathway with present evidence

SISB’s published sequence reaches Cambridge IGCSE and AS/A-Level, but the Rayong campus opened in 2023 and its 2026/27 new-applicant range stops at Grade 10. Ask which secondary grades are operating now, how many pupils are in each cohort, which IGCSE subjects are taught and when the first Rayong AS/A-Level cohort is expected.

Highgate opens through Year 6 in August 2026 and plans Senior School for 2027/28. Ask for the dated year-by-year expansion plan, which approvals are already in place, when IGCSE subjects will first run and what happens if enrolment or regulatory timing changes.

For either school, request a sample transcript, the planned examination calendar and the counselling timeline appropriate to the child's likely cohort.

Compare accreditation and curriculum claims carefully

Highgate received its OPEC operational licence in May 2026 and appears in the OPEC register as school 1120700017. Neither Highgate nor SISB carries a campus-level international accreditation in the current ledger.

Registration still does not make the classroom choice automatically. Compare the proposed teacher, class size, language load, homework pattern, assessment style and reporting cadence. A pupil moving from another Singapore system may find SISB’s sequence more familiar; a pupil coming from a British school may map more directly into Highgate. Families arriving from other systems should ask both schools to explain placement using actual prior records.

Model discounts without hiding the standard price

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. Highgate publishes a 3% full-year prepayment discount, 5% for the second child and 10% for each additional sibling.

Keep those reductions below the standard-fee comparison. Ask whether discounts can combine, which deadline applies and what happens if the family withdraws.

Test the real family week

SISB is in Nong Taphan, Ban Khai; Highgate is near Siam Country Club in Banglamung. Drive both routes at arrival and collection times, including work and sibling stops.

Both schools exclude transport without a current public tariff, so request address-specific quotes. Highgate boarding is planned but not operating, and current official pages conflict between 2027 and 2028/29; treat residential provision as unavailable until a dated contract and fee are published.

Finish the offer meeting

1. Placement: exact class, live operation and next class.
2. Learning: language allocation, programme map, work and reports.
3. Cost: acceptance cash, first year and recurring year.
4. Support: provision, staffing, review and price.
5. Transition: SISB’s operating Singapore-to-Cambridge sequence or Highgate's phased British IGCSE-to-A-Level plan.

Save offers, fee schedules, calendars and placement answers together.