Seoul Foreign School
🇰🇷 Seoul · Founded 1912 · IB / British · Ages 2–18
A historic, academically elite international school — one of Asia's oldest (founded 1912) — distinguished by a rare dual-track structure: the full IB Continuum (PYP/MYP/DP) alongside a separate British School (English National Curriculum). WASC-accredited with the deepest IB track record in Korea.
Curricula
IB, British
Age range
2–18
Languages of instruction
English
Annual fees
SGD KRW 26,740,000–33,370,000
Enrollment
1,500
Boarding
No (day school)
IB authorised
PYP, MYP, DP
Accreditations
WASC, ICA
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
Seoul Foreign School traces its founding to 1912 (originally Kyungsung Foreign School), making it one of the oldest international schools in Asia; it marked '110 years of history' in 2021–2022. (A minor source discrepancy exists: Wikipedia's intro says 1913 while its infobox and the school's own materials say 1912 — the school's 1912 figure is treated as authoritative.) The school took the name 'Seoul Foreign School' in 1964 and merged with the British School in 1981.
The school's defining feature is structural plurality: 'four sections, two curricular frameworks, one school.' SFS runs the complete IB Continuum — PYP in Elementary (Grades 1–5), MYP in Middle/High School, and the IB Diploma in High School — while operating a distinct British School on the English National Curriculum (via the Fieldwork International Primary Curriculum), spanning Early Years to Year 6. SFS does NOT offer Advanced Placement; its two complementary paths are the IB Continuum and the English National Curriculum. It is 'the most experienced IB school in Korea' and was the first in South Korea to offer the IB Diploma.
The 25-acre (~100,000 m²) hilltop campus sits in Yeonhui-dong, Seodaemun-gu, next to Yonsei University. Enrolment is roughly 1,500–1,600 students from 50–55 nationalities; on average about half are US citizens. It is a day school. The school reported a 2021–2022 IB average of 36 (vs 29.9 world) with a 98% pass rate among 109 diploma candidates (school-reported, unverified).
South Korea has no public inspectorate for foreign schools, and no verbatim BSO/ISI band is published for the British School, so the tier reflects accreditation depth (WASC) — capped at A.
Why These Ratings?
Inspection & AccreditationA — Excellent
WASC accreditation confirmed; no public BSO/ISI inspection band exists for the British School and South Korea has no public foreign-school inspectorate. CIS membership is claimed on Wikipedia but not confirmed on the official site. Tier reflects accreditation depth — A.
Strengths & Trade-offs
Strengths
- Full IB Continuum (PYP→MYP→DP) — exceptional vertical coherence; Korea's most experienced IB provider (40+ years)
- Strong school-reported IB outcomes (avg 36; 98% pass rate) — well above world averages
- Genuine dual-pathway choice: IB track plus a separate English National Curriculum British School
- WASC-accredited (long-standing US regional accreditation)
- Large, established community (~1,500–1,600 students, 50+ nationalities) on a rare 25-acre urban campus
- 110+ year heritage — institutional stability among the oldest international schools in Asia
Trade-offs
- No published BSO/ISI or independent inspection report for the British School — no third-party rating to verify quality claims; tier capped at A
- No AP option, which families seeking a US college-prep AP track will not find here
- Academic results are school-reported and not independently audited
- Faith-based mission ('Centered in Christ') may not suit all secular families
- Source inconsistencies (1912 vs 1913 founding; whether CIS accreditation and an IGCSE upper-secondary British track are offered) reduce confidence on some specifics
Is It Right For You?
Best For
- ✓Families committed to a full IB pathway from primary through diploma
- ✓US-citizen and globally mobile families wanting WASC accreditation and US-recognised credentials
- ✓Long-term placements valuing institutional heritage and a large multinational community
- ✓Families wanting an early-years British-curriculum option (British School, EY–Year 6)
Not Ideal For
- ✕Families seeking an AP-based US curriculum (not offered)
- ✕Families needing a British curriculum through GCSE/A-Level (British School ends ~Year 6; no public confirmation of an upper-secondary Cambridge track)
- ✕Families requiring boarding (day school only)
- ✕Strictly secular families uncomfortable with the Christian mission
Curriculum
Full IB Continuum — PYP (Gr 1–5), MYP (Gr 6+), IB Diploma with CAS (Gr 9–12). Separate British School on the English National Curriculum (IPC framework), Early Years to Year 6. No AP. Wikipedia references IGCSE/upper Key Stages and CIS membership, but these are not confirmed on official SFS pages — treat as uncertain. World languages: Korean, Mandarin, Spanish, French.
Fees
Tuition 2026–2027 (KRW): Elementary/British School full-day 26.7M–27.3M; Middle School (Gr 6–8) 27.93M; High School (Gr 9–12) 33.37M. One-time new-student costs: Application 400K, Registration 650K, Entrance 5.5M (all non-refundable). Round-trip bus 4.2M/yr. The International Schools Database lists an all-in 2025/2026 range of KRW 37.6M–52.3M (incorporating ancillary fees).
Admissions
Application fee KRW 400K (non-refundable); one-time entrance fee KRW 5.5M. Specific entry requirements were not extracted from public pages — verify directly.
Campus Life
25-acre (~100,000 m²) hilltop campus in Yeonhui-dong, Seodaemun-gu, adjacent to Yonsei University. ~1,500–1,600 students, 50–55 nationalities. Christ-centred mission emphasising academic/creative excellence and service. Day school.
University Placement
School-reported · not independently verified
School-reported, unverified: IB results (avg 36, 98% pass, 2021–2022). No university-destination/matriculation data was found on public pages.
Sources
Every verifiable fact carries a public source — verify it yourself.
📬 Get notified when we publish new university guides
Compare Seoul Foreign School with
Side-by-side: curriculum, fees, accreditation, honest trade-offs