Deep Teaching

Independent · All-through · Hounslow

International School of London

Independent school · Ages 3 to 18 · Mixed · 298 pupils

At a glance

Type
Independent school
Ages
3 to 18
Gender
Mixed
Pupils
298 census January 2024
Capacity
600
Admissions policy
Non-selective
Sixth form
Yes
Nursery classes
Yes
Head of School
Mr Richard Parker
Address
139 Gunnersbury Avenue, London, W3 8LG
Borough
Hounslow
Telephone
02089925823
DfE reference (URN)
102550

Source: Department for Education, Get Information About Schools · daily extract as at 2026-10-07 · last checked 9 October 2026

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Open days and tours

  1. Open morning · 09:15Monday 12 October 2026, 09:15 to 10:45

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  2. Sixth-form open evening · 18:30Thursday 15 October 2026, 18:30 to 20:30

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Dates as published on the school's own page, read 10 Oct 2026. Schools add and change dates at short notice and most ask you to book: confirm with the school. All open days in London

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Admissions

Independent schools run their own admissions. You register directly with the school, usually for a fee, and the school sets its own deadlines, assessments and offer dates, which are separate from the borough process.

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Fees

StagePer termPer year
Early Childhood 1excluding VAT£8,210£24,630
Early Childhood 2including VAT£9,437£28,310
Kindergartenincluding VAT£10,573£31,720
Grade 1including VAT£10,573£31,720
Grade 2including VAT£10,573£31,720
Grade 3including VAT£10,573£31,720
Grade 4including VAT£10,573£31,720
Grade 5including VAT£10,573£31,720
Grade 6including VAT£11,820£35,460
Grade 7including VAT£11,820£35,460
Grade 8including VAT£11,820£35,460
Grade 9including VAT£12,827£38,480
Grade 10including VAT£12,827£38,480
Grade 11including VAT£13,213£39,640
Grade 12including VAT£13,213£39,640

The school publishes an annual fee only; the termly figure is a third of it.

Day fees for 2026-27, as published by the school (read 9 Oct 2026). The VAT position is shown beside each stage. Lunches, trips and other extras may be charged on top.

Other charges and help with fees

Registration fee
£300 per one_off Application fee for new students only Source
Acceptance deposit
£1,800 per one_off Enrolment deposit for new students, refunded on leaving with full term's notice Source
Lunches
£1,820 per year Optional hot lunch charge, not available to Grades 11 & 12 Source

Cost to 18 for this school

Source: isllondon.org · academic year 2026-27 · last checked 9 October 2026

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Inspection

Ofsted graded inspection, 22 November 2023: overall effectiveness at that inspection was Good

Quality of education
Good
Behaviour and attitudes
Good
Personal development
Good
Leadership and management
Good
Early years provision
Good
Sixth-form provision
Good

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Independent School Standards, checked 22 November 2023: All standards Met

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Source: Ofsted, Management information - non-association independent schools - as at 31 July 2026: most recent inspections data as at 31 July 2026 · most recent inspections as at 2026-07-31 · last checked 9 October 2026

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Pupils and context

Receiving SEN support
22.7%
With an Education, Health and Care Plan
0.2%
Girls / boys
45% / 55%

Source: Department for Education, Compare school and college performance · 2024/25 · last checked 9 October 2026 · school census 2024/25

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Nearby schools

Schools covering the same ages within about a mile, by straight-line distance (not walking or travel time).

Independent · All-through · Ages 2 to 18 · Mixed · Hounslow

30 pupils

Kew House

0.4 miles

Independent · Senior · Ages 11 to 18 · Mixed · Hounslow

467 pupils · A level average B (2024/25) · £10,992 a term (2026-27)

State-funded · Primary · Ages 3 to 11 · Mixed · Hounslow

611 pupils · KS2 expected standard 78% (2024/25)

Applications: open (15 Jan 2027)

State-funded · Primary · Ages 3 to 11 · Mixed · Ealing

349 pupils · KS2 expected standard 35% (2024/25)

Applications: open (15 Jan 2027)

State-funded · Secondary · Ages 11 to 18 · Mixed · Ealing

752 pupils · Attainment 8 42.1 (2024/25)

Applications: closes in 21 days (31 Oct 2026)

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Compare with similar schools

Side-by-side comparisons with the nearest schools of the same type. Sourced facts only; no winner is declared.

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