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Halcyon London International School

By Coby F

1 year ago

Address: 33 Seymour Place, London W1A  5AU
Website: www.halcyonschool.com
Founded: September 2013
Ages: 11-18
Pupils: 190
Fees: £30,429 – £31,851 per year
Head Teacher: Barry Mansfield
Religious Affiliation: None. All faiths welcome
Entrance Procedure: Previous school reports/ transcripts/ references, interview, test in certain circumstances
Contact: +44 (0)20 7258 7785 | General Enquiries: +44 (0)20 7258 1169
Email: Admissions: [email protected] | General enquiries: [email protected]
School Visits: Tours available on request (contact Admissions). Open House and Taster Session details at halcyonschool.com/visit/ 


Halcyon offers the International Baccalaureate Middle Years Programme (IB MYP) for Grades 6-10 (Ages 11-16) & the International Baccalaureate Diploma Programme (IB DP) for Grades 11-12 (Ages 16-18).

Games & the Arts

Halcyon has a popular and growing range of competitive sports teams and sports clubs. The creative arts are strong. A range of instrumental lessons are available.

Pastoral Care

A unique, research-driven Wellbeing Programme is integrated into student life at Halcyon. Students thrive, academically and socially, in a learning environment that values, uplifts and nurtures every voice. This approach incorporates social and emotional learning with structured mentoring to support students in developing holistically.

University Places

Halcyon students matriculate at a range of prestigious Russell Group and UK Top 20 universities, including Oxford, Cambridge and Imperial College London, as well as highly competitive international institutions such as Dartmouth College and the Rhode Island School of Design (RISD).

Head Teacher’s Philosophy

Halcyon is a leading International Baccalaureate school for students aged 11 to 18 – the only not-for-profit one in London. Their mission is to provide an exceptional education that draws out the unique potential of each student. Students collaborate with teachers and their peers, achieving ambitious academic goals and confidently meeting high levels of personal growth. Their unique, research-driven approach to wellbeing drives academic success as students feel valued, confident and secure.

Outstanding Characteristics

  • Ofsted ‘Outstanding’ (2020)
  • A Good Schools Guide school (2023/24)
  • Unique, research-driven wellbeing programme
  • Google Reference School and Apple Training Centre
  • Central London’s only not-for-profit international school
  • Green Small Business Certified