Data profile
Independent co-ed all-through school in Westminster for ages 4–18. Selective entry, top-tier London fees.
Where leavers go after sixth form.
Class of 2025
A level A*–A and GCSE 9–7, recalibrated for 2026.
Recalibrated
| Entry | Year | Places | Assessment | Day fee (max) |
|---|---|---|---|---|
| 11+ | Grade 6 | — | Reference / report · Other | £40.0k |
| 16+ | Grade 9 | — | Reference / report · Other | £40.0k |
| 4+ | PreK–Grade 12 | — | Interview · Observation | £40.0k |
| ReceptionMAIN | K | — | Interview · Observation | £40.0k |
Our composite score, broken down by pillar.
Index score
55
/ 100
National rank #245
ISI
Outstanding
Inspected 2024-12-12
The school is likely to meet the relevant independent school Standards if the material change to increase pupil numbers from 1425 to 1550 is implemented. The inspection found that safeguarding arrangements are effective, premises and facilities are adequate for the increased numbers, and school leadership has carefully considered staffing and provision to maintain pupil wellbeing.
Read full ISI report →Head of school Matthew Horvat Since July 2023, Matthew Horvat, previously head of school at The Overlake School in Redmond, Washington. As an undergraduate he studied history at the University of Pennsylvania, followed by a master’s in mathematics and teaching at Boston
Founded in 1951 by American journalist and former teacher Steven L. Eckhard, ASL started with just 13 pupils. Its current building (minus the security guards, bollards and bulletproof barriers) opened in 1971, when its fully carpeted, open-plan
School provides an American curriculum and offers Advanced Placement (AP) exams. In May 2025, 357 students took 1,020 AP exams in 32 subject areas, with 93 per cent scoring 3 or higher. ### Teaching & learning ASL has long held a reputation as one of the top ‘college prep’ schools outside the US. Parents select it – often in contrast to the British system – because of its ‘pedagogy’. ‘We felt it was a child-centred education, looking to instil a love of 7:1 Pupil to teacher ratio View all data 20 Average class sizes View all data
Schools families applying here also consider.
Southbank International School is co-ed day with selective entry, top-tier London fees (£48.1k), and located 3km from the target, making it a close match in ethos, fees, and geography.
Ashbourne College is a co-ed day sixth-form college with selective entry, top-tier London fees (£44.3k), and located 4km from the target, overlapping at 16+ entry phase and similar fee and selectivity tier.
Southbank International School Westminster is co-ed day with top-tier London fees, selective ethos, and located 3km from the target, overlapping in entry phase and selectivity tier.
Southbank International School Hampstead is co-ed day with top-tier London fees (£48.1k), selective ethos, and located 2km from the target, overlapping in sex/boarding, fees, and geography.
Gesher School is co-ed day with selective entry, top-tier London fees (£47.3k), and located 15km from the target, overlapping in sex/boarding, selectivity tier, and fees.
Matched on sex, boarding, entry phase, location, fee band, tier and outcomes. Scoring: 0.45 outcome similarity, 0.25 structured, 0.10 embedding, 0.20 AI re-rank. Refreshed yearly and when a profile changes.
Open days, bursaries and how to apply: The American School in London profile →