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Photo of International School of London
Reviewed

International School of London

Independent school · London, W3 8LG
  • All through
  • Co-ed
  • Ages 3-19
  • From £23,690 pa
  • 395 pupils
We've reviewed this school • Unlock to access

The perfect school for both those on a temporary UK visa and for permanent families. All are well catered for with the mother tongue facilities and the intensive English language learning, as well as the solid IB ethos. Ideal location for families wanting the benefits of green space with proximity to central London. A happy and convivial atmosphere and an understanding cohort of international teachers who 'get it'.

Why read our school review?

Unlike other websites, schools can't pay to be included in The Good Schools Guide. This means our review of this school is independent, critical and fair, and written with parents' best interests at heart.

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Overview & data

Pupil numbers
395 ·
Sixth form numbers
65 ·
Religion
None
Fees
£23,690 - £38,120 pa
Local authority
London Borough of Hounslow
Area guides
School ownership
Independent school Our CEO/Proprietor is Amin Makarem

Headteacher

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


Entrance

A rolling admissions policy to match the needs of relocating families. Eighty-six per cent of students have international passports, the rest have British ones (school says it is seeing an increase in enquires from British nationals). Initial contact

Open days
Virtual Open Days

Exit

Majority stay in the UK, heading off to universities including King’s College London, Imperial, Sterling, Westminster, Southampton, Lancaster, SOAS, Warwick and Queen Mary. Occasionally students head overseas – recently to Northeastern (US) and


Latest results

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

Learning support & SEN

Full-time SENCo (for both lower and upper schools) is highly praised: ‘My son really found himself here,’ said one parent of a dyslexic child. ‘They really care,’ said another. Students are offered two periods a week of support by SENCo and deputy,

0.25 %
Students with a SEN EHCP
22.67 %
Students with SEN support

Arts & extracurricular

There is an energetic and busy vibe to the school, with pupils engaging in different activities wherever we looked. Definitely something for everyone, and whilst perhaps a little hectic, had a cheery ambience. Drama is a biggie – we watched an improv


Sport

We wouldn’t be surprised if the new Gunnersbury Sports Hub is a clincher for many families deciding between schools. ISL were key partners in the project and claim on their website that it gives them some of the ‘best sporting facilities of any


Ethos & heritage

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.


Pastoral care, inclusivity & discipline

The school makes every effort to ensure that their transition from overseas is as smooth as possible, and its transition programme has won awards, based on testimonials of students and their parents when following their ‘journey.’ The transitions


Mobile phone policy

A clear mobile phone policy is a really important part of modern schooling. This school has provided us with their policy.

Mobile phone policy

Provided by the school and not part of our review

Students are allowed to bring mobile phones to and from school to ensure their personal safety. Upon arrival, phones should be switched off and placed in lockers. Students must not use their phone or any related device during the school day, except under the direction of a teacher. Mobile phones are also not permitted at after school extracurricular clubs and can only be switched on upon leaving the school site. Any student found using, or known to have used, their phone at school will have it confiscated and returned at the end of the day via the pastoral team, with parents informed.

Updated Sep 2025

Pupils & parents

The school boasts 60 nationalities, a major attraction for parents. Large numbers of Japanese, American, Italian, French, Brazilian, Spanish, Dutch, Russian, French and British. Also popular is the school’s location - near Kew, Chiswick and Ealing.

395
Number of pupils

Money matters

Privately owned by a Lebanese family who have weekly updates and visit regularly. Fees are fairly hefty and often paid by employers. No extra charges for the mother tongue language programme (as long as there are at least five students), learning

Fee information
£23,690 - £38,120 pa

The last word

The perfect school for both those on a temporary UK visa and for permanent families. All are well catered for with the mother tongue facilities and the intensive English language learning, as well as the solid IB ethos. Ideal location for families


Inspection reports

What the school says

Founded in 1972, International School of London (ISL) is a co-educational school for students age 3-18. An International Baccalaureate (IB) World School, ISL London offers the Primary Years (PYP) and Middle Years Programmes (MYP), as well as the IB Diploma. The IB programmes combine intellectual rigour and high academic standards with a strong emphasis on the ideals of international understanding and responsible citizenship. ISL was one of the first schools in the UK to offer the IB diploma. Mother tongue language and literacy is an integral part of the curriculum.

Contact the school

Address

139 Gunnersbury Avenue
London
W3 8LG
Get directions

Have you considered?

School data & information International School of London 139 Gunnersbury Avenue, London, W3 8LG
395 Pupil numbers
213/182 Pupil numbers boy/girls split
65 Sixth form numbers
16 Average class sizes

Mobile phone policy

Provided by the school and not part of our review

Students are allowed to bring mobile phones to and from school to ensure their personal safety. Upon arrival, phones should be switched off and placed in lockers. Students must not use their phone or any related device during the school day, except under the direction of a teacher. Mobile phones are also not permitted at after school extracurricular clubs and can only be switched on upon leaving the school site. Any student found using, or known to have used, their phone at school will have it confiscated and returned at the end of the day via the pastoral team, with parents informed.

Updated Sep 2025
Our review contains additional results data reported to us by International School of London and is updated annually. See the review

This is an independent school and therefore does not have Key Stage 2 SATs results. While some independent schools choose to sit SATs, they are not required to do so and the UK government does not collect or publish their results. Find out more.

GCSE-level results data is not reliably reported on for independent schools. We have chosen to show only the results achieved in individual subjects. Find out more

Entry and exit data

We do not have entry or exit data for pupils at this school. Find out more


SEN overview

International School of London is a mainstream school. The school may provide support for students with special educational needs as detailed below. If you require more information on conditions the school can support, we encourage you to contact the school directly.

SEN statement

Provided by the school and not part of our review
Have you considered?
0.25 %
Students with a SEN EHCP UK mainstream school avg. 2.7%
22.67 %
Students with SEN support UK mainstream school avg. 12.9%

SEN conditons supported

Schools report the conditions they might be able to support. Please note, this may not be a complete list. Find out more.

Conditions (Might cover/be referred to as) Provision
ASD - Autistic Spectrum Disorder Aspergers, Autism, High functioning autism, Neurodivergent, Neurodiversity, Pathological Demand Avoidance (PDA), Social skills
HI - Hearing Impairment
MLD - Moderate Learning Difficulty Learning needs
MSI - Multi-Sensory Impairment Sensory processing
OTH - Other Difficulty/Disability Downs Syndrome, Epilepsy, Genetic, Tics, Tourettes
PD - Physical Disability
PMLD - Profound and Multiple Learning Difficulty Complex needs, Global delay, Global developmental delay
SEMH - Social, Emotional and Mental Health Anxiety, Complex needs, Emotionally based school avoidance (EBSA), Mental Health
SLCN - Speech, Language and Communication Selective mutism
SLD - Severe Learning Difficulty Complex needs
SpLD - Specific Learning Difficulty Attention Deficit Hyperactivity Disorder, Auditory processing, Developmental Co-ordination Difficulties (DCD), Dyscalculia, Dysgraphia, Dyslexia, Dyspraxia, Handwriting Yes
VI - Visual Impairment Special facilities for Visually Impaired
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