St Mark's Catholic School
Hounslow, TW3 3EJ · Hounslow · secondary school
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1st of 20 secondary schools in Hounslow we can score. Local and same-phase on purpose: a national table mostly measures who attends.
Its results hold up when the comparison narrows to schools whose pupils have similar backgrounds — 9.5/10 against 558 of them, against 9.6/10 nationally. So this is not simply a reflection of who attends. Both figures are results only, without the inspection grade. A lower figure here means a stronger comparison group, not a weaker school.
How this is worked out
| Measure | Percentile | Weight | Adds |
|---|---|---|---|
| Ofsted | 94 | 35% | 3.28 |
| Grade 5+ English & maths 2025/26 | 76.1 · 94 | 30% | 2.81 |
| Progress 8 2023/24 | 1.35 · 100 | 25% | 2.49 |
| Attainment 8 2025/26 | 62.7 · 94 | 10% | 0.94 |
Each measure is read as a position among comparable schools, so a school in the middle of the country scores 5. Full method.
St Mark's Catholic School overview
How it's doing
In 2024/25, 72.0% of pupils achieved Grade 5 or above in English and maths. Attainment 8 was 62.5, compared to the national median of 44.6. Progress 8 was +1.35 in 2023/24, indicating better progress than pupils nationally starting from the same place. Its results hold up when the comparison narrows to schools whose pupils have similar backgrounds, so they are not simply a reflection of who attends (9.4 out of 10 against similar schools, 9.5 out of 10 against all schools). Ofsted rated the school Outstanding in October 2022.
Beyond the classroom
Pupils can join the Drama Club, Orchestra, String Ensemble, Senior Choir, Film Club, Art Club, Creative Writing Club, and Book Club. Sports include football, basketball, netball, cricket, athletics, running, rounders, and Gaelic football. Cultural events include the Advent Carol Service, Diwali Celebrations, Cultural Day, Advent Fete, and St Mark’s Art Exhibition. A Hi5 Watersports leadership trip is also offered.
Getting in
The published school roll is 1,214 pupils against a stated capacity of 1,213. These whole-school figures do not establish entry-year vacancies or the likelihood of an offer. Confirm entry-year availability and admissions criteria with the school or local authority.
Worth asking on a visit
How does the school manage the current over-capacity status for new applicants? What specific support is
What Ofsted said about St Mark's Catholic School
Overview
The report states that “pupils thrive at this school” and that leaders are determined to provide opportunities for all to succeed. It highlights a “very carefully considered curriculum” which is broad and balanced, supported by teachers with “very strong subject knowledge.” The inspection concludes that pupils achieve very well and are well prepared for their next steps in education or employment.
Strengths
- The curriculum is described as “highly effective” and delivered with expertise, with complex content “routinely broken down into smaller chunks.”
- Behaviour is “exemplary,” with bullying being “very rare” and pupils displaying high levels of respect for one another and staff.
- Pupils with special educational needs and/or disabilities (SEND) are “well supported” and access the same curriculum as their peers.
- There is a “huge range of additional opportunities and activities,” including music, sports, and charity work, which promote pupils’ wider development.
- Staff are “committed and well-trained,” and leaders prioritise professional development while sharing best practice with other schools.
Areas to improve
- The report identifies no significant areas for improvement.
Safeguarding
The report states that “the arrangements for safeguarding are effective,” noting that staff are regularly trained and leaders are “persistent and tenacious” in securing support for vulnerable pupils.
Results over time
Attainment 8, the years we hold.
| Year | Attainment 8 |
|---|---|
| 2023/24 | 64.7 |
| 2024/25 | 62.5 |
| 2025/26 | 62.7 |
| England | 44.9 |
Source: DfE Explore Education Statistics. “England” is the median of the 3,682 state schools in England we hold a 2025/26 figure for — a school-level median, not the DfE's pupil-weighted national figure.
Your offer chance
—Based on official applications/offers, distance and catchment where we have it. Bands only — never a percentage.
Sibling, faith, looked-after and other criteria can override distance. Always confirm with the school or local authority.
Next dates
- Secondary application deadline31 Oct 2026
- Secondary National Offer Day1 Mar 2027
- Secondary application deadline31 Oct 2027
- Secondary National Offer Day1 Mar 2028
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