How to Choose an International School in London: 2026 Expat Family Guide

Author

David from ISA

Posted 28 May, 2026

How to Choose an International School in London: 2026 Expat Family Guide

London is one of the world's most established markets for international education, with a deep bench of British independent schools, IB World Schools and American and bilingual options spread across Greater London. For an expat family arriving in 2026, the challenge is rarely finding a school; it is filtering the right shortlist for your child, your curriculum target and your neighbourhood. This guide walks through how to choose well.

Why London Is a Top Choice for International Education

Few cities can match London for breadth: from world-renowned British independents to American-curriculum schools, IB Continuum schools and small bilingual institutions. The British education sector is also one of the most regulated, with Ofsted inspections, ISI reports and clear examination frameworks (IGCSE, GCSE, A Levels, the IB Diploma) that allow families to compare schools with unusual transparency.

Curricula Available in London

  • British (Independent) — IGCSE/GCSE followed by A Levels or, increasingly, the Pre-U.
  • International Baccalaureate — PYP, MYP and the Diploma Programme.
  • American — Common Core with AP courses, leading to high school diplomas.
  • French, German and other national systems — full curricula taught in the home language with English support.

Top International Schools in London

ACS International School Hillingdon

Long-established American and IB school in West London, with strong arts, sports and a campus designed for whole-school IB delivery. View ACS Hillingdon on ISA.

Bristol Grammar School

A historic British school offering a rigorous academic programme, frequently shortlisted by expat families relocating to the South West and Greater London commuter belt. View Bristol Grammar School on ISA.

Bromsgrove School

A leading boarding and day school with both A Level and IB Diploma routes and a strong international-pupil community. View Bromsgrove School on ISA.

Brentwood School

An Essex-based independent with strong academic outcomes and a fast train into central London — popular with families looking outside Zone 1. View Brentwood School on ISA.

Ashcroft Technology Academy

A high-performing London academy with a STEM focus, accessible from many parts of South West London. View Ashcroft Technology Academy on ISA.

International School Fees in London (2026)

Fees vary widely depending on whether you choose an independent British school, an American school or a non-selective bilingual option:

  • Reception to Year 6: GBP 18,000 – GBP 30,000
  • Years 7 to 11 (GCSE / MYP): GBP 22,000 – GBP 36,000
  • Sixth Form (A Level or IB Diploma): GBP 24,000 – GBP 42,000
  • Boarding supplement (where applicable): GBP 12,000 – GBP 22,000 on top of day fees

Plan for a registration fee (GBP 150 – GBP 350), an acceptance deposit (typically one term's fees, refundable), exam fees in upper years, and uniform, lunches and transport.

Where to Live Around London Schools

Many top independents sit in Zone 2 to Zone 4 (Wandsworth, Hammersmith, Hampstead, Wimbledon, Dulwich) or along the Greater London commuter belt (Surrey, Berkshire, Essex). If your child has a place, build your housing search around school catchment and the Tube line — a 35-minute commute in heavy uniform is sustainable; 60+ minutes is not.

How to Run a Strong Admissions Process

Apply 12 to 24 months out for the most selective schools, especially at 11+ and 13+. The 16+ Sixth Form market is competitive but moves faster.

Sit the right tests. ISEB Common Pre-Test for many 11+ entries; CAT4 or in-house papers elsewhere. Confirm with each school.

Prepare references. Heads' reports from your current school carry significant weight in London. Brief your current school early.

Read the inspection reports. Ofsted and ISI reports are publicly available and offer an honest read on safeguarding, leadership and teaching quality.

Start Your Shortlist

For a constantly updated ranking of the best international schools in the UK with reviews, fees and contact details, explore the ISA ranking of the best international schools in the United Kingdom.

Frequently Asked Questions

What does an international school in London cost in 2026?

Day fees typically range from GBP 18,000 – GBP 30,000 in primary up to GBP 24,000 – GBP 42,000 in Sixth Form, with boarding adding GBP 12,000 – GBP 22,000.

When should we apply?

For the most competitive London independents, apply 18 to 24 months ahead. For less selective schools and 16+ entries, 6 to 12 months is usually enough.

Is the IB or A Level better for university?

Both are accepted at every UK university and almost all major destinations worldwide. A Levels offer depth in three subjects; the IB Diploma rewards breadth and includes Theory of Knowledge and the Extended Essay.