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Halcyon London International School is an innovative International Baccalaureate school in central London for students aged 11 to 18, committed to drawing out the unique potential of each student through a values-driven, collaborative and community-oriented environment.
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How is this calculated? →Independent co-ed senior school in Westminster for ages 11–18. Selective entry, top-tier London fees.
Our mission is to provide an exceptional education that draws out the unique potential of each student, fostering innovation, collaboration, and community.
Our Class of 2025 IB Diploma students achieved excellent results, gaining places at prestigious global universities including LSE, UCL, Imperial College London, and top international institutions. The results reflect not only strong grades but also collaborative teamwork and diverse talents.
Halcyon London International School has confirmed events. Book a visit, then save the school so you don't miss the registration window.
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| Year | Opens | Closes | Status |
|---|---|---|---|
| 2026-27 | 1 May 2024 | 15 Oct 2025 | Closed |
Private tours and additional visits available by arrangement — contact admissions to arrange.
| Tue, 19 May 2026 | Taster Afternoon | Taster Day |
“Each student has a learning mentor, who stays with them throughout, and holds small-group mentoring sessions weekly.”
Pastoral care, inclusivity & disciplineEach student has a learning mentor, who stays with them throughout, and holds small-group mentoring sessions weekly. Mentoring groups contain one or two pupils from each grade, so the school becomes integrated across the age groups. ‘My kids have Mobile phone policy A clear...
One inspection report on file. Worth reading before booking a visit — covers safeguarding, leadership and overall standard.
Ranked by semantic similarity across curriculum, ethos, intake and admissions style. Most parents shortlist 4–6 schools before applying.
Common questions about Halcyon London International School, answered from this school’s structured profile data. Always confirm specifics with admissions before applying.
Independent co-ed senior school in Westminster for ages 11–18. Selective entry, top-tier London fees.
Admissions are selective — expect an entrance assessment at the relevant entry point. Plan tutoring or familiarisation early. See the admissions timeline above for confirmed dates.
Yes — see the Fees table further down the page. Add extras (uniform, trips, lunches, music tuition, registration fees) on top of the base figure before budgeting.
SEND provision isn't documented in our profile. If your child has identified needs, contact admissions early to discuss capacity.
2 upcoming open days or tours — see the admissions timeline. Booking is usually required.
email at join@halcyonschool.com or phone on +44 3898 366 42. Reference your child's age and intended entry year in the first message.
We've ranked 6 schools by semantic similarity to Halcyon London International School — see the "Schools like Halcyon London International School" grid below. Most parents shortlist 4–6 schools before applying.
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