Halcyon London International School
Halcyon London International School is an independent school in London for ages 11 to 18.
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At a glance
- Type
- Independent school
- Ages
- 11 to 18
- Pupils
- 157
- Who it's for
- Boys and girls
- Sixth form
- Yes
- Address
- 33 Seymour Place, London, W1H 5AU
- Phone
- 02072 581169
The school's websiteResults and performanceFull register entryMap
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School details: Get Information about Schools, Department for Education, URN 139415. Checked 9 November 2026.
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