Data profile

International School of London

Independent co-ed all-through school in Hounslow for ages 3–18. Non-selective intake, top-tier London fees.

  • Rank #236
  • ISI Standards met
  • Fees £39.6k/yr
  • co-ed
  • Hounslow

01 · Module

Outcomes

Where leavers go after sixth form.

Russell Group
0%

of leavers

US Ivy
0

02 · Module

Exam results

A-level top grades and GCSE 9–7, post-2026 methodology recalibration.

A-level A*–A
0%

Recalibrated

GCSE 9–7
0%
Oxbridge rate
0%
Russell Group rate
0%

03 · Module

Entry points & fees

Ages, deadlines and annual fees per route.

EntryYearPlacesAssessmentDay fee (max)
10+£39.6k
11+Grade 6£39.6k
12+£39.6k
13+Grade 11£39.6k
16+Grade 11£39.6k
3+EYFS / Early Years£39.6k
4+Grade 1£39.6k
7+Grade 2£39.6k
8+£39.6k
9+£39.6k

04 · Module

Houseroom Index

Composite score blending owned data with external consensus.

Index score

51

/ 100

National rank #236

Academic25
Destinations50
Future-ready55
Pastoral82
Value-add29
Access & breadth75
Parent70
External consensus70

05 · Module

Inspections

Latest inspection rating and report.

OFSTED

Good

Inspected 2023-11-22

Read full report →

07 · Module

Editorial verdict

Houseroom's view of the school.

head

Principal Richard Parker Since September 2018, Richard Parker. Initially employed in 2015 to head up both ISL Surrey Primary School and the ISL London campus. Due to financial constraints, the Surrey school no longer exists. Studied history at Cambridge, then worked as a

ethos

The school was bought in the 1970s and was one of the first to offer all three IB programmes (PYP, MYP and DP). It is one of three schools owned by a Lebanese family who are still very involved, although there is an active board of governors too.

teaching

In 2024, average point score of 33 for IB. ### Teaching & learning Often listed in the top 10 international schools in London, although good results are not obtained by hothouse teaching or rote. Instead, there’s a more informal setting that encourages students to take ownership of their learning: ‘Students are not 16 Average class sizes View all data

08 · Module

Compare with peers

The schools a family applying here would also be considering — chosen by sex, boarding, entry phase, geography, fees, tier and outcomes, with an admissions-adviser AI re-rank.

  • 1ICS LondonWestminster
    Fees £34.2kRank #403

    ICS London is a co-ed day school with overlapping entry phases (3–18), located 9km from Hounslow, with non-selective intake and top-tier London fees (£34.2k), matching the target's ethos and fee bracket.

  • Fees A*-A 0%Oxbridge 0%Rank #398

    Southbank International School Westminster is a co-ed day school for ages 11–18, located 10km away, with top-tier London fees and a similar international ethos, making it a sensible alternative.

  • Fees A*-A 0%Oxbridge 0%Rank #237

    The Japanese School in London is a co-ed day school for ages 6–15, only 2km away, with non-selective intake and a similar fee tier, providing a close geographic and ethos match.

  • Fees £40.0kRank #462

    Social Arts for Education is a co-ed day senior school for ages 11–19, 24km from Hounslow, with non-selective intake and top-tier fees (£40k), overlapping entry phases and selectivity tier.

  • 5The Swedish SchoolRichmond upon Thames
    Fees £16.8kA*-A 0%Oxbridge 0%Rank #384

    The Swedish School is a co-ed day school for ages 2–19, located 3km away, with non-selective intake and a similar international ethos, fitting the target's entry phases and fee tier.

Peers refreshed annually plus on-write. Filters: sex, boarding, entry phase, geography, fee band, tier. Scoring: 0.45 outcome similarity + 0.25 structured + 0.10 embedding + 0.20 AI re-rank.

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