Sial

Independent school · All-through, ages 2 to 14 · Mixed · Nursery class

154-156 Holland Park Avenue, London, W11 4UH

020 7603 5353 · School website · Map and directions

Ofsted report card1 strong, 6 expectedSafeguarding met · 10 March 2026
Pupils82Room for 160 Pupil numbers in January of each year: 81 in 2019, 53 in 2021, 63 in 2022, 77 in 2023, 82 in 2024, 89 in 2025. Across England, secondary state school pupil numbers were up 10% from 2019 to 2025.

Ofsted inspection

Ofsted report card from the inspection that started on 10 March 2026 , published 20 May 2026.

In short: 1 strong, 6 expected, and safeguarding met.

Since November 2025 Ofsted grades each area on a five-point scale instead of giving one overall grade. How report cards work.

AreaGrade
SafeguardingWhether pupils are kept safe. Met or not met. Met
InclusionHow well the school supports disadvantaged pupils and pupils with special educational needs. Expected standard Middle of five grades. Meets the standard Ofsted expects.
Curriculum and teachingWhat pupils are taught and how well they are taught it. Expected standard Middle of five grades. Meets the standard Ofsted expects.
AchievementHow well pupils learn and the results they get. Expected standard Middle of five grades. Meets the standard Ofsted expects.
Attendance and behaviourWhether pupils come to school and how they behave. Expected standard Middle of five grades. Meets the standard Ofsted expects.
Personal development and wellbeingPupils' wider development, character and wellbeing. Strong standard Second of five grades. Better than the standard Ofsted expects.
Early yearsNursery and reception classes. Expected standard Middle of five grades. Meets the standard Ofsted expects.
Leadership and governanceHow well leaders and governors run the school. Expected standard Middle of five grades. Meets the standard Ofsted expects.

At its last standard inspection the school met all of the independent school standards, the legal requirements every independent school must meet.

Read the full Ofsted reports for this school

Source: Ofsted non-association independent schools inspection data.

What parents say

36 parents answered Ofsted's Parent View survey between 10 November 2025 and 6 April 2026.

StatementThis schoolEngland
My child is happy at this school 94% 83%
My child feels safe at this school 97% 85%
The school makes sure pupils are well behaved 97% 78%
Concerns were dealt with properlyOf 36 parents who had raised a concern 97% 74%
I would recommend this school to another parent 97%said yes 83%

Parents choose whether to take part, so these answers may not represent all families (Ofsted puts the response rate at 40%). Figures are the share who agree or strongly agree. England figures are all parents answering the same questions over the same period, for state-funded schools. The scales run from lower (left) to higher (right) agreement, and the dot marks this school among state schools of the same phase that used the same survey questions. The third it falls in is coloured: green for the top third, amber the middle, red the bottom. Source: Ofsted Parent View management information.

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Results

We don't show GCSE or primary results for independent schools. DfE's tables often leave out the IGCSEs and other qualifications many independent schools use, so their published figures can look far lower than pupils' real results. Ask the school for its results.

Admissions

Independent schools run their own admissions and set their own fees. Contact the school directly.

Pupils, staff and SEND

PupilsThis schoolKensington and ChelseaEngland
Eligible for free school meals in the last 6 years 0.0% 40.4%* 28.9%
With an education, health and care plan 2.3% 5.4%* 3.1%
Receiving special educational needs support 19.1% 13.5%* 13.4%
English as an additional language Not published 39.9%* 19.2%

Comparisons are with secondary schools. Scales run from lower (left) to higher (right) figures. For absence and suspensions lower is better, so their scales run green to red; blue scales describe the school's pupils and staff and aren't good or bad. * Calculated by SchoolScores from the council's or England's schools, weighted by pupils (or teachers, for turnover); other figures are published by DfE. Sources: DfE school census 2024/25.

Nearby secondary schools

Straight-line distance. Distance isn't the same as a catchment area.

Questions parents ask

What is Sial's Ofsted rating?

Sial was inspected under Ofsted's report card format in 10 March 2026. Report cards grade each area on a five-point scale instead of giving one overall grade. Its grades were 1 strong, 6 expected, and safeguarding was met.

Would parents recommend Sial?

97% of the 36 parents who answered Ofsted's Parent View survey between 10 November 2025 and 6 April 2026 said they would recommend Sial to another parent. Parents choose whether to respond, so this may not represent all families.

Sources

Spotted a mistake? Report it and we'll check it against the source.

Page updated 26 September 2026.