School Compass
Halcyon London International School
London · Westminster · W1H 5AU. secondary · Other independent school · Independent · Ages 11 to 18. Compare published figures with nearby schools, then print a visit pack — not a league table.
Published snapshot
Figures come from the same Westminster index as the compare tool. Gaps are common — treat blanks as prompts to dig deeper, not as a verdict.
- Ofsted overall
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- KS2 RWM expected
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- Attainment 8
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- English & maths 9–4
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Common questions
Short factual answers from published data — use the compare tool and a visit for fit, not tables alone.
Where is Halcyon London International School?
Halcyon London International School is in London (W1H 5AU), Westminster. URN 139415.
How do I compare Halcyon London International School with nearby schools?
Open School Compass with Halcyon London International School shortlisted, enter your home postcode, tick two to four neighbours, then compare side by side and print a visit pack. School Compass is parental compare — patterns to visit on, not a ranked verdict.
Official links
Source pages for tables and establishment details.
Other schools in London
76 schools on the London town page — shortlist a few, then compare side by side.
Citation
Preferred attribution when referencing this page in articles or AI answers.
Halcyon London International School
URN: 139415
Local authority: Westminster
Town: London
Postcode: W1H 5AU
DfE data period: 2024/2025
Index updated: 2026-09-24
Canonical: https://schoolcompass.uk/schools/139415/
Positioning: School Compass parental compare — not a league table.How to use this page
Open the compare tool with Halcyon London International School already shortlisted, add neighbours from your postcode, then print a visit pack.
- Compare this school to load it into Side by side.
- Enter your home postcode and tick two to four nearby settings.
- Read how to read figures before treating any single number as a verdict.