Halcyon London International School
URN: 139415 • London W1H 5AU
Overview
- Name
- Halcyon London International School
- URN
- 139415
- Type
- Other independent school
- Phase
- Not applicable
- Status
- Open
- Gender
- Mixed
- Religious
- None
- Admissions
- Not applicable
- Trust
- Private
- Yes
- Ofsted rating
- Outstanding
- Ranking score
- 66.3 / 100
Leadership & Contact
- Headteacher
- Barry Mansfield (since 2025) , Director
- Telephone
- 02072581169
- Website
- Visit
- Address
- 33 Seymour Place, London W1H 5AU
Summary
Halcyon London International School is a mixed, independent school located in Marylebone, London, catering to students aged 11 to 18. As a not-for-profit institution, Halcyon is dedicated to providing an exceptional education through the International Baccalaureate (IB) curriculum. With a current enrolment of 165 pupils and a capacity of 230, the school fosters a close-knit community that encourages collaboration and creativity among students and teachers.
The school's innovative approach integrates cutting-edge technology into learning, preparing students for a digital future. Halcyon emphasises student wellbeing, with a dedicated Wellbeing Lead on the Senior Leadership Team, ensuring a supportive environment where students feel valued and secure. Personalised mentoring and a focus on character development help students build resilience and autonomy.
Halcyon also offers tailored university and careers counselling, connecting students with global opportunities and preparing them for prestigious universities. The school's ethos centres on nurturing each student's unique potential, fostering academic curiosity, and promoting a sense of responsibility for their broader interests.
The school's innovative approach integrates cutting-edge technology into learning, preparing students for a digital future. Halcyon emphasises student wellbeing, with a dedicated Wellbeing Lead on the Senior Leadership Team, ensuring a supportive environment where students feel valued and secure. Personalised mentoring and a focus on character development help students build resilience and autonomy.
Halcyon also offers tailored university and careers counselling, connecting students with global opportunities and preparing them for prestigious universities. The school's ethos centres on nurturing each student's unique potential, fostering academic curiosity, and promoting a sense of responsibility for their broader interests.
Useful links
- Apply(opens in new window/tab) (sen)
- Read More (other)
- Read More (other)
- Read More (other)
- Read More (other)
- Read More (other)
- Daniel Pokaz, Class of 2020 (other)
- Gwen Sears, Halcyon Graduate (other)
- 2025 IB Diploma Results (other)
- Instagram(opens in new window/tab) (other)
Nearby alternatives
- Azhar Academy Girls School (75.2)
- Spa School (73.2)
- Harris Aspire Academy (72.7)
- Hawkswood Primary PRU (72.7)
- The Pears Family School (72.7)
Key details
- LA
- Westminster
- Age range
- 11 - 18
- Boarders
- No boarders
- Sixth form
- Has a sixth form
- Trust
- Capacity
- 230
- Pupils
- 165
- Boys
- 94
- Girls
- 71
- FSM %
- Open date
- 2013-03-13
- Close date
- Last Ofsted
- 2020-03-05
- Next inspection
- Data snapshot
- 2025-07-14
- County
Trends
| Date | Pupils | Boys | Girls | Capacity | FSM% |
|---|---|---|---|---|---|
| 2025-07-14 | 165 | 94 | 71 | 230 | |
| 2024-09-11 | 187 | 103 | 84 | 230 | |
| 2023-09-11 | 176 | 86 | 90 | 230 | 0.00 |
| 2022-09-11 | 176 | 86 | 90 | 230 | 0.00 |
| 2021-09-11 | 157 | 85 | 72 | 230 | 0.00 |
| 2020-09-11 | 187 | 97 | 90 | 230 | 0.00 |
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