International School of London, London

All-through
Other independent school
Mixed
Ages 318
International Baccalaureate

Data last updated 11 Sept 2026

Location

Key Information

DfE GIAS
Head:Mr Richard Parker
Pupils:298 / 600 capacity
LA:Hounslow
Phone:02089925823
Address:139 Gunnersbury Avenue, London, W3 8LG
Admissions:Non-selective
Status:open
Opened:26 October 1987

Ofsted Rating

Ofsted · 3 years ago
-

Overall

Inspected 22 November 2023View full report
URN:102550
UKPRN:10016086
Diocese:Not applicable
Constituency:Hammersmith and Chiswick
Urban/Rural:Urban: Nearer to a major town or city

Ofsted Insights

What This School Does Well

The school excels at supporting a diverse, multicultural pupil community where children feel safe and behave exceptionally well. It has developed an impressive home language programme and provides strong support for pupils learning English as an additional language. The international curriculum engages pupils effectively through topic-based learning that allows them to pursue their interests.

Key Strengths

  • Exceptional pupil behaviour and strong sense of safety throughout the school, with effective awareness of British values and protection from extremism
  • Outstanding sixth form provision with above-average International Baccalaureate attainment
  • Highly effective support for pupils learning English as an additional language and those with special educational needs
  • Strong home language development programme with approximately 30 teachers teaching in pupils' home languages
  • Excellent curriculum enrichment through clubs, visits and visitors that motivates pupil engagement

Areas for Improvement

  • Most-able pupils sometimes receive work that is too easy, causing them to wait for others and slowing their progress
  • Teaching and learning monitoring procedures lack sufficient rigour to help teachers identify specific areas for improvement
  • School improvement plan priorities do not consistently link clearly to improved outcomes for pupils
  • Assessment of children's learning at the end of Reception Year is not consistently accurate

Safeguarding

Safeguarding arrangements are effective with all policies and procedures properly implemented, staff appropriately trained in child protection and Prevent duty, and rigorous checks made on staff before employment.

Extracurricular Activities

After-school clubs, visits to places of interest within UK and abroad, student council, visits to Houses of Parliament, assemblies celebrating religious festivals, mindfulness lessons, service learning projects

International School of London is a good school with an ambitious leadership team that has created a clear vision for educational excellence. The school effectively supports pupils from diverse backgrounds, including those learning English as an additional language, and has an outstanding sixth form provision.

Fees (2025)

Day fee

£7,667/term

£23,000/yr

At a Glance

No

Boarding

Yes

Nursery

Yes

Sixth Form

No

Special Measures

Class Sizes

0.0

Avg class size

0

Total classes

2024/25 academic year

Getting There

Train Stations

Gunnersbury Station (Entrance)
644m · 10 min walk
Gunnersbury Rail Station
697m · 11 min walk
Kew Bridge Station (Entrance)
743m · 12 min walk

Tube / Metro / Tram

Gunnersbury Underground Station
689m · 11 min walk
Acton Town Underground Station
807m · 13 min walk
Acton Town
824m · 13 min walk

Bus Stops

Power Road (Stop D)
307m · 5 min walk
Chiswick Roundabout / Gunnersbry (Stop R)
368m · 6 min walk
Thorney Hedge Road (Stop K)
520m · 8 min walk
Vantage West (Stop N)
533m · 9 min walk
Oxford Road North (Stop F)
555m · 9 min walk
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Capacity & Demand

School Occupancy

50%

Available places

298 pupils

600 capacity

302 spare places available

Area Demand Pressure - London

Medium pressure
New homes approved:104,823
Projected new pupils:18,868

Based on MHCLG housing supply data for London

Admissions Demand - Hounslow

Low demand1.01x oversubscription

Places available

3,137

Applications

3,180

Got 1st preference

71.3%

Got preferred school

96.0%

Secondary admissions across Hounslow (2025/26)

Inspection History(5)

22 November 2023
12 March 2019
8 March 2016

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SEN Provision

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Pupil Demographics

The school's pupil mix - ethnicity breakdown, free school meals eligibility, and English as an additional language. Useful context when evaluating school fit.

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