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Halcyon London International School

Independent

Halcyon London International School

33 Seymour Place, London, W1H 5AU

An independent independent school in London.

Other independent school
Pupils
165
Ages
11-18
Capacity
230

Inspected by ISI, not Ofsted

?

Since September 2023, ISI no longer awards an overall grade like Good or Outstanding. Read the school's latest report for compliance, significant strengths, and areas for improvement.

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Inspection
ISI inspected

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Exam Results

Official performance data from the Department for Education

GCSE Results (Secondary)

Key performance measures— 2024/25

Attainment 8
N/A
Progress 8?
N/A
9-7 Grades
N/A
Basics 9-5
N/A

Trend — Attainment 8 & Progress 8

Progress 8 not available for 2024/25 — DfE cannot calculate it because COVID-19 cancelled this cohort's KS2 SATs (the baseline). Expected to return in 2026/27.

Grade Distribution (%)

DfE school-level GCSE grade distribution is available from 2023/24 onwards; no data for earlier years

How to read Progress 8 vs Attainment 8Two numbers, two different stories. The 6-min explainer for parents.

A-Level Results (Post-16)

Key A-Level performance measures— 2024/25

APS per Entry
N/A
A*-A Grades
N/A
A*-B Grades
N/A
AAB+ %
N/A

APS per Entry

National avgSelective avg

Grade Distribution (%)

Based on 25 students entered

Community & Reviews

What parents say and who teaches here

Parent Reviews

Location & Area

Explore the neighbourhood around the school

Data shown for guidance only · confirm details with the school before applying

About Halcyon London International School

Halcyon London International School is a secondary school in London, Westminster. The school has around 165 pupils on roll. Use this page to explore performance trends, inspection history, admissions notes and neighbourhood context before applying.

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Location: 33 Seymour Place, London, W1H 5AU | More schools in Westminster

Schools near Halcyon London International School

Other open schools within about 5 km, with the same phase shown first where possible.

Frequently asked questions about Halcyon London International School

Where is Halcyon London International School located?
Halcyon London International School is a secondary school in London, Westminster (W1H 5AU).
How many pupils attend Halcyon London International School?
Halcyon London International School has around 165 pupils on roll according to the latest school census data.
How can I compare Halcyon London International School with other schools?
View Halcyon London International School's full profile on FavSchools for multi-year results and Ofsted history, then use the comparison tool or interactive map to explore nearby alternatives in Westminster.