Classpot

SIAL

Kensington and Chelsea, W11 4UHAll-throughAges 2–14MixedPrivate

About SIAL

SIAL is an independent day school in Kensington and Chelsea, London, for pupils aged 2 to 14 for boys and girls. GIAS records 82 pupils on roll and a published capacity of 160.

Figures can refer to different reporting periods. Check the date and source shown beside each section. How Classpot uses published data.

GIAS school facts

Official identity and contact facts; operational fees and services appear only when separately reviewed.

Age range
2–14
Education stages
Early years, Primary, Secondary
Gender
Mixed
Pupils on roll
82
Published capacity
160
Inspectorate
Ofsted inspection regime
Day-school evidence
No boarders; Does not have boarders
Area classification
Urban: Nearer to a major town or city
Published admissions policy
Non-selective
Address
154-156 Holland Park Avenue, London, Kensington and Chelsea, W11 4UH
Telephone
02076035353
School website
Visit official website

Source: GIAS establishment record · published 20/08/2026

Pupils and staffing

Official figures for 2025/26.

Pupils
82
Girls / boys
41 / 41
Teachers (headcount)
25
Teachers (FTE)
22.5
Pupils per teacher FTE — not class size
3.6
Area classification
Urban: Nearer to a major town or city
Published admissions policy
Non-selective

Source: official publication (04/06/2026) · official publication (04/06/2026)

Ofsted-inspected independent school

Older independent schools inspection framework (OEIF). This is separate from ISI and from state-school overall ratings.

Inspection
Independent School standard inspection
Inspection date
28/03/2023
Overall outcome
2
ISS compliance
All standards Met
Safeguarding
Yes

Ofsted provider page

Source: official publication (30/04/2026)

Ofsted Parent View survey

Attributed survey snapshot for 10 November 2025 – 6 April 2026, based on 36 published responses. It is not a Classpot review or rating.

My child is happy at this school
94.4% agree
My child feels safe at this school
97.2% agree
The school makes sure its pupils are well behaved
97.3% agree
When bullying took place, the school dealt with it quickly and effectively
50% agree
The school gives children with SEND the support they need to succeed
100% agree
The school communicates well with me about the things I need to know
91.6% agree
When I raised concerns, the school dealt with them properly
97.3% agree
When the school makes decisions it has the child's best interests at heart
97.2% agree
The school gives my child the right support to learn well
97.2% agree

Source: official publication (06/04/2026)

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