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St Mark's Catholic School
Outstandinggraded 21/09/2022Ages 11–181,215 pupilsFaithRoman Catholic
St Mark's Catholic School is a secondary school for pupils aged 11 to 18 in Hounslow. It has a Roman Catholic religious character. The school has around 1,215 pupils on roll. At its most recent graded Ofsted inspection in 21/09/2022, St Mark's Catholic School was judged Outstanding. Recent GCSE results show above-average progress (a Progress 8 score of +1.4), an average Attainment 8 score of 64.8 and 78% of pupils gaining a grade 5 or above in English and maths. Families comparing secondary schools in Hounslow can view St Mark's Catholic School's Ofsted rating, GCSE results and exact location free on NestScope.
Ofsted & inspectionOutstanding
Overall effectiveness & sub-judgements
Quality of educationOutstanding
Behaviour & attitudesOutstanding
Personal developmentOutstanding
Leadership & managementOutstanding
Last inspected 21/09/2022. How to read an Ofsted rating →
Strengths & watch points5 strengths · 1 watch
Computed from Ofsted & DfE outcomes vs England average
Quality of education
Behaviour & attitudes
Personal development
Leadership & management
Progress 8
Value added
Computed from published Ofsted judgements & DfE outcomes — not a written review.
GCSE results — Key Stage 4Above average
Attainment 862.5
England avg 45.1 · was 64.7 in 2023/24
Progress 8+1.4
Grade 5+ English & maths72%
England avg 45% · was 78% in 2023/24
Grade 4+ English & maths86%
England avg 65% · was 92% in 2023/24
EBacc entry89%
England avg 39%
EBacc average point score5.98
England avg 4.03
DfE, 2024/25. What is a Progress 8 score?
Sixth form — A-levelBelow average
A-level grade (point score)B-
APS per entry 38.2
A-level grade (best 3)B-
APS best 3: 38.1
AAB or better18%
Retention98%
Value added-0.20
Below average · 95% CI -0.3 to -0.1
DfE 16-18 results, 2024/25
Pupil intake12.5%
Free school meals12.5%
England avg 28.6%
English not first language60.2%
England avg 18.3%
Places filled100%
SEN support
EHC plan
DfE school census, 2025/26
Attendance & staffing94.6%
Attendance94.6%
England avg 91.0%
Pupils per teacher18.1
England avg 17.6
Persistent absence12.4%
England avg 25.8%
Teachers with QTS
DfE — absence & workforce, 2025/26
Nearby schools in Hounslow
All schools in Hounslow →Grove Road Primary SchoolGood · 0.3 miSt Michael and St Martin Catholic Primary SchoolOutstanding · 0.2 miThe Orchard Primary SchoolGood · 0.4 miWellington Primary SchoolGood · 0.4 miSuffah Primary School0.6 miThe Heathland SchoolOutstanding · 0.7 mi
See the full area report for TW3 3EJ →