Halcyon London International School
Same Westminster area with a comparable local commute
ICS London is a private secondary-stage school in London, Greater London, with a published age range of 3-19.

ICS London
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At a glance
ICS London was opened in 1979 for the children of diplomats and global business people living in London, and that international purpose still shapes its identity. The school works across two nearby sites: younger pupils are based at Wyndham Place, while the secondary and diploma years are on Star Street. It is a single educational journey with a deliberately global starting point.
The curriculum follows the International Baccalaureate sequence of PYP, MYP, IGCSE and IB Diploma. The IB Learner Profile and Approaches to Learning give the pathway a common language for critical thinking, communication, research and self-management. Weekly personal development and morning tutor time sit alongside specialist support for students with a variety of learning differences.
Rolling admissions mean that a place can sometimes be taken during the academic year when space allows. Families begin with contact and a campus visit, then use OpenApply, attend an admissions discussion and receive an offer before securing it with the registration fee and deposit. Clubs, individual and team sports, and activities across London extend the two-campus programme into a varied student life.
GIAS confirms the school type and age range; fees, scholarships, bursaries and entrance assessments should be checked on the school's own website.
Independent schools do not use the local-authority grammar-school catchment model; check the school site for boarding, transport and eligibility rules.
Use the official admissions policy for the current priority order and eligibility rules.
Entrance assessment details are not part of the GIAS open data extract.
Secondary and Diploma entry
Throughout the year, subject to availability
The school describes this as a rolling admissions policy.
Apply direct to the school
Independent-school admissions are handled by the school rather than the local authority CAF.
Check school admissionsLatest inspection: 10 March 2026
Local rivals appear first, followed by nearby alternatives where the journey and admissions route are still comparable.
Same Westminster area with a comparable local commute
Same Westminster area with a comparable local commute
Same Westminster area with a comparable local commute
Same Westminster area with a comparable local commute
Closest comparable alternatives with a similar academic profile, so parents can weigh local fit and results together.
Nearby option with a similar Ofsted and sixth-form picture
Nearby option with a similar Ofsted and sixth-form picture
Nearby option with a similar Ofsted and sixth-form picture
Related guides are still being added.
FAQ
ICS London handles applications directly. Check the school website for registration dates, entrance assessments, interviews, fees, scholarships and bursaries.
1. Apply direct to the school: Independent-school admissions are handled by the school rather than the local authority CAF.
Secondary and Diploma entry: Throughout the year, subject to availability
ICS London is currently rated Standards met following the latest published inspection dated 10 March 2026.