Hounslow
International School of London
Dependable results for a comprehensive intake; the journey is the main thing to weigh.
What the data says
Published data, read plainly. It tells you what to check next; it does not guarantee a place or replace your local authority’s admissions guidance.
Academic signal is not available for this school phase in our current dataset.
No Progress 8 data is available for this school in the years we hold.
Admissions realism depends on your home postcode and the school's published allocation data. Enter your postcode on this page to get a more specific assessment, and always verify the latest policy on the school's official admissions page.
What to do next
- Verify the school's official admissions policy
- Book an open day or school visit
- Add this school to your shortlist and compare with backup options
Admissions and catchment
Independent schools run their own admissions outside the council process, so there is no catchment area or last offer distance to compare against. Registration and assessment dates are on the school’s website.
University destinations
The Department for Education does not publish Oxbridge, Russell Group or top-third university destinations for independent schools.
Entry, tests and fees
Open events
Open evening Grades 11 - 12 Thursday 15 October 2026
Source · checked 28 September 2026
Copied from the school's and test organisers' own pages; check them before registering or applying.
Nearby and similar schools
Other secondary schools in Hounslow for local comparison.
School information
| URN | 102550 |
| Local authority | Hounslow |
| Region | London |
| Phase | Not applicable |
| Type | Other independent school |
| Gender of entry | Mixed |
| Age range | 3-18 |
| Headteacher | Head of School Richard Parker |
| Trust | — |
| Admissions | Non-selective |
| Religious character | None |
| Postcode | W3 8LG |
| Latest pupils | 397 |
| FSM eligible | — |
Contact and identifiers
139 Gunnersbury Avenue, London, W3 8LG
https://www.isllondon.org/2089925823| DfE number | 6063 |
| UKPRN | 10016086 |
| Opened | 26 Oct 1987 |
| GIAS updated | 4 Feb 2026 |
Data sources and freshness
| Official record updated | 4 Feb 2026 |
| Latest KS4 year | — |
| Latest KS2 year | — |
| Ofsted published | — |