The British School in Tokyo
🇯🇵 Tokyo · Founded 1989 · British / IB · Ages 3–18
A long-established, premium British-curriculum school — the largest of its kind in Japan — with strong published exam results, now transitioning its sixth form from A-Levels to the IB Diploma.
Curricula
British, IB
Age range
3–18
Languages of instruction
English
Annual fees
SGD JPY 2,960,000–3,070,000
Enrollment
1,400
Boarding
No (day school)
IB authorised
DP
Accreditations
Tier Profile
We only tier dimensions backed by a public inspection verdict or verifiable accreditation. Other dimensions show a data flag — never a guessed score.
BrightKey's Assessment
The British School in Tokyo (BST) opened in 1989 — its first Shibuya primary campus inaugurated by then-UK PM Margaret Thatcher — and has grown into what it describes as the largest British international school in Japan, serving roughly 1,400 students aged 3 to 18 across two campuses (Azabudai Hills for ages 3–11, opened 2023; the Showa site in Setagaya for ages 11–18). It teaches the National Curriculum for England, leading to (I)GCSE in the middle years.
The senior school is in transition. BST introduced A-Levels in 2010–11 but has now adopted the IB Diploma for Years 12–13, with the last A-Level cohort running 2024–2026 — making it dual-track in the short term and an IB-DP school thereafter.
Results are published and competitive: 2025 A-Levels 59% A*/A and 90% A*/C; (I)GCSE 68% A*/A. The 2024–25 leaver list spans UCL, Imperial, Cambridge, LSE, plus Japanese (Waseda, Sophia) and North American (Toronto, McGill) destinations.
The school is selective on English: all teachers are native English speakers, instruction is in English, and there is no EAL support — students must demonstrate age-appropriate fluency.
Why These Ratings?
Inspection & AccreditationB — Strong
No public BSO or ISI inspection rating was found (unlike Tanglin in Singapore), and accredited-membership/COBIS status could not be confirmed on a public directory — so the tier rests on self-published results only and is set conservatively to B.
Strengths & Trade-offs
Strengths
- Long pedigree (since 1989) and scale — ~1,400 students, 60–65 nationalities, the largest British school in Japan
- Strong, publicly-published exam results (2025 A-Level 59% A*/A; IGCSE 68% A*/A)
- Credible, transparent university-destination list including UCL, Imperial, Cambridge, LSE
- All-native-English-speaker faculty with UK qualifications
- Modern facilities — new Azabudai Hills primary campus (2023) and refurbished secondary (2025)
- Small classes capped at 22
Trade-offs
- No public BSO or ISI inspection rating found — no external inspection band to verify quality, unlike British peers such as Tanglin
- Accreditation is unclear: COBIS participation is evident, but accredited-membership/BSO status is not confirmed on any public directory
- Sixth form is mid-transition (A-Levels phasing out by 2026, IB DP ramping up) — no IB results track record yet
- No EAL support — unsuitable for families whose children aren't already fluent in English
- Premium fees with annual increases plus sizeable one-time enrolment and resources fees
Is It Right For You?
Best For
- ✓Anglophone expatriate families wanting a continuous British-curriculum pathway
- ✓Already-fluent English-speaking children (native or near-native)
- ✓Families targeting UK/competitive global university admission who value a published results record
Not Ideal For
- ✕Children needing English-language support / EAL provision
- ✕Families who require an externally inspected (BSO/ISI) quality guarantee
- ✕Families wanting a proven IB Diploma outcomes history right now (the DP cohort is new)
- ✕Budget-sensitive families
Curriculum
National Curriculum for England → (I)GCSE → sixth form. Sixth form transitioning: A-Levels (last cohort 2024–2026) phasing out as the IB Diploma is delivered in Years 12–13. The school's senior section is titled 'IB World School,' but an explicit IBO authorization listing could not be independently retrieved (treat DP as school-reported).
Fees
2026-27 tuition: Primary ¥2,960,000; Secondary Y7–9 ¥2,980,000; Y10–13 ¥3,070,000, plus a ¥100,000 Capital Development Fee. One-time new-student costs: ¥40,000 application, ¥500,000 enrolment, ¥680,000 educational resources. Verify directly with the school.
Admissions
Selective on English fluency; no EAL support. Non-native speakers complete an English test and oral assessment. Japanese compulsory; French/Spanish offered.
Campus Life
Two campuses — Azabudai Hills (Minato-ku, ages 3–11, opened 2023) and Showa (Setagaya-ku, ages 11–18). Classes capped at 22, ~60–65 nationalities.
University Placement
School-reported · not independently verified
School-reported, unverified: 2024–25 destinations include UCL (x10), Imperial (x3), Cambridge, LSE, Bath, plus Waseda, Sophia, Toronto, McGill and Williams College.
Sources
Every verifiable fact carries a public source — verify it yourself.
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