St Mary's Catholic Primary School, Isleworth, Isleworth
St Mary's Catholic Primary School, Isleworth is a primary school for pupils aged 3 to 11 in Isleworth. It has a Roman Catholic religious character. It was rated Good at its last graded Ofsted inspection, in April 2012. Ofsted's ungraded inspection in June 2022 did not change this grade. Its 2025 Key Stage 2 results were the 4th-highest of the 8 schools in Isleworth with published results, and 2,822nd of 14,452 across England. It was 88% full in 2025.
- SATs results
- Above England average
- Ofsted
- Good (2012)
- Demand
- Every first choice offered
- Attendance
- In line with England
Reception applications for September 2027 close in 81 days
Deadline Friday 15 January 2027. Apply to Hounslow (the council where you live). Offers on 16 April.
Data last updated 26 Oct 2026
St Mary's Catholic Primary School, Isleworth in detail
Results
In 2025, 82% of Year 6 pupils at St Mary's Catholic Primary School, Isleworth reached the expected standard in reading and 91% in maths. At the average state primary the figures were 82% and 83% in Hounslow and 77% and 75% across England.
Results fell from 88% in reading and 95% in maths in 2024.
Getting a place at St Mary's Catholic Primary School, Isleworth
For September 2026 entry, 37 families put St Mary's Catholic Primary School, Isleworth as their first choice and 153 named it as one of their preferences, for 47 places offered. It had fewer first-choice applications than places. Every family who put it first was offered a place there for 2026 entry.
Admissions history and your chances at St Mary's Catholic Primary School, Isleworth
Compared with nearby schools
The nearest other state primary schools to St Mary's Catholic Primary School, Isleworth are The Blue School CofE Primary (under 0.1 miles, Good, 95% reading, 95% maths); Worple Primary School (0.3 miles, Good, 88% reading, 85% maths); Isleworth Town Primary School (0.3 miles, Good, 85% reading, 78% maths); and The Smallberry Green Primary School (0.4 miles, Good, 91% reading, 87% maths).
St Mary's Catholic Primary School, Isleworth's 2025 results were higher than 1 of these 4 schools.
The Blue School CofE PrimaryWorple Primary SchoolIsleworth Town Primary SchoolThe Smallberry Green Primary School
Who goes there
12.5% of pupils are eligible for free school meals, well below the average state school (25%), and 29.8% speak English as an additional language, against 18.8% on average, according to the 2026 school census.
The largest ethnic groups are White British (25%), Asian (20%) and Black (13%).
In 2026, 40 pupils (10%) received SEN support and 4 (1%) had an education, health and care plan, against 16.2% and 4.6% at the average state school. The most common need among them is social, emotional and mental health needs.
Getting there
The nearest railway station is Isleworth Rail Station, about 910 metres away (roughly a 11-minute walk).
11 bus stops are within a five-minute walk; the closest is South Street (TW7), 80 metres away.
Suspensions and exclusions
In 2024/25, St Mary's Catholic Primary School, Isleworth issued 9 suspensions, 2.3 for every 100 pupils (the average state school: 6.3), and no permanent exclusions.
Secondary schools nearby
The secondary schools closest to St Mary's Catholic Primary School, Isleworth are Gumley House RC Convent School, FCJ (0.1 miles); The Green School for Boys (0.6 miles); The Green School for Girls (0.7 miles); and Isleworth and Syon School for Boys (1 mile).
Gumley House RC Convent School, FCJThe Green School for BoysThe Green School for GirlsIsleworth and Syon School for Boys
Sources: DfE school performance data (averages: state mainstream schools); DfE school-level applications and offers; council admissions booklets; DfE appeals statistics; DfE school census and special educational needs statistics; NaPTAN (Department for Transport); DfE exclusions statistics
Key Information
DfE GIASOfsted Rating
Ofsted · 4 years agoThis judgement is from April 2012, 14 years ago, longer than Ofsted's usual 4-year cycle: the school may have changed since.
Overall
Latest (ungraded) inspection: The school remains Good.
Ofsted Insights
From Ofsted's June 2022 inspection report.
What This School Does Well
St Mary's is a warm, welcoming community where children feel part of a 'family' and receive high expectations from caring teachers. The school has created an excellent curriculum that builds knowledge step-by-step, helping pupils catch up on learning lost during the pandemic. Pupils thrive on the wide range of activities and challenges on offer, from daily running to after-school clubs and leadership opportunities.
Key Strengths
- Well-designed, ambitious curriculum that prepares pupils for the next stage of education
- Strong teaching of early reading with consistent phonics training across the school
- Pupils develop genuine love of reading and collaborative learning skills
- High-quality pastoral care with rare disruptions to learning
- Leaders create many opportunities for pupils to develop leadership skills
Areas for Improvement
- On occasion, pupils' misconceptions in some subjects are not identified and addressed quickly enough
- Some younger pupils sometimes receive books that are too difficult, which slows their reading fluency development
Safeguarding
Safeguarding arrangements are effective with all staff clear about their responsibilities, rigorous checks on staff suitability, and pupils learning about keeping themselves safe at home, at school, and online.
Extracurricular Activities
Daily mile run, wide range of after-school clubs, sports day, library visits
St Mary's Catholic Primary School in Isleworth continues to be a good school where pupils feel happy, safe, and excited by the many activities on offer. Teachers have high expectations and use well-thought-out curriculum planning to help pupils learn effectively.
At a Glance
12.5%
Free School Meals
No
Boarding
Yes
Nursery
No
Sixth Form
No
Special Measures
Primary Performance (KS2)
Academic year 2024/25KS2 Results (% meeting expected standard)
Reading has declined from 88% to 82% (2024 to 2025). Maths has declined from 95% to 91% (2024 to 2025). Writing has declined from 90% to 85% (2024 to 2025).
Class Sizes
25.4
Avg class size
25.7
Infant (KS1)
27.4
KS2
15
Total classes
3 classes with more than 30 pupils
2025/26 academic year
How Does This School Compare?
Ranked against 5 nearby primary schools
Keep up with St Mary's Catholic Primary School, Isleworth
Before and after school care
Clubs on Ofsted's childcare register at or near St Mary's Catholic Primary School, Isleworth.
- Pins & Needles Club LTD180m away · Not yet graded
- Dolce Senso Bake N Play After School Club180m away · Not yet graded
- KOOSA Kids Breakfast, After School and Holiday Club at The Blue School, Isleworth180m away · Not yet graded
- Isleworth Explorers380m away · Not yet graded
- Hive420m away · Not yet graded
- Skillz4Life Sports Coaching700m away · Not yet graded
Getting There
Train Stations
Bus Stops
Free school transport
Check free transport to St Mary's Catholic Primary School, Isleworth from your postcode →
You apply to the council where you live. St Mary's Catholic Primary School, Isleworth is in Hounslow; for families living there:
Apply to Hounslow for free school transport. Its policy is on the council's website.
Safety and surroundings
Road collisions within 500 m (2021 to 2025)
- Collisions
- 44
- Fatal
- 0
- Serious
- 10
- Children hurt
- 5
Within 500 m of the school's mapped location, police recorded 44 road collisions in which someone was injured in 2021 to 2025: none fatal, 10 serious and 34 slight.
5 children aged 0 to 15 were hurt: 1 on foot, 2 on a bicycle and 2 in a vehicle or otherwise.
17 of the collisions happened on a weekday between 08:00 and 09:30 or 14:45 and 16:30, holidays included.
The typical figure for schools in Hounslow is 52.5 (the median across 90 schools, same distance and years).
Serious and slight counts use the Department for Transport's severity adjustment, which allows for changes in how police forces record injuries; they are estimates, rounded to whole numbers. Distances are in a straight line. Source: Department for Transport, Road Safety Data (STATS19), Open Government Licence v3.0.
Commute and house prices
Your chances of a place at St Mary's Catholic Primary School, Isleworth
Will you get a place at St Mary's Catholic Primary School, Isleworth? Get the admissions report
Your home postcode, set against St Mary's Catholic Primary School, Isleworth's admissions figures, in one report saved to your account.
What the report includes for St Mary's Catholic Primary School, Isleworth:
- The straight-line distance from your home to St Mary's Catholic Primary School, Isleworth.
- We hold no last distance offered figures from Hounslow, so the report covers demand, alternatives and dates.
- Applications, first choices and offers at St Mary's Catholic Primary School, Isleworth for 2014 to 2026 entry.
- How many families in Hounslow got their first choice, and how often appeals there succeed.
- The nearest state schools to your home, with Ofsted rating, demand and last distance offered where published.
- Key dates for September 2027 entry and how to apply.
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Capacity & Demand
School Occupancy
88%
Available places
371 pupils
420 places
49 spare places in 2025
2025, DfE school capacity data
Area Demand Pressure - Isleworth
Based on MHCLG Live Table 122 (2024-25, last 5 years) for Isleworth
Across Hounslow council
Places available
3,086
Applications
2,856
Got 1st preference
89.3%
Got preferred school
98.8%
All primary applications across Hounslow council (2026/27), not just this school.
This school: Every first choice offered
Inspection History(6)
SEND & SEN Provision
SEN Overview
40
SEN Support
4
EHC Plans
11.0%
of Total Pupils
2026 academic year
Provision & Specialist Facilities
Pupils by Need Type
Pupil Demographics
Ethnicity
2026 academic year
Key Indicators
399
Total Pupils
197
Boys
202
Girls
2026 academic year
Workforce
18
Teachers
22.2:1
Pupil-teacher ratio
£55,860
Mean salary
2026 data
School Funding
£5,414
Per pupil
£2162k
Total funding
£64k
Pupil premium
2025-26 financial year allocations
Pupil Absence2024/25
4.9%
Overall absence
12.6%
Persistent absence
340
Enrolments
Absence trend
Source: DfE pupil absence statistics. Persistent absence = pupils missing 10%+ sessions.
Secondary Schools Nearby
Secondary schools pupils are likely to move to
Questions parents ask about St Mary's Catholic Primary School, Isleworth
What are SATs results like at St Mary's Catholic Primary School, Isleworth?
Of the pupils at St Mary's Catholic Primary School, Isleworth who took the 2025 Key Stage 2 assessments, 82% reached the expected standard in reading and 91% did so in maths.
What is St Mary's Catholic Primary School, Isleworth's Ofsted rating?
St Mary's Catholic Primary School, Isleworth's most recent Ofsted inspection, in June 2022, was ungraded, so it gave no overall grade. At its last graded inspection, in April 2012, it was rated Good.
What is the catchment area for St Mary's Catholic Primary School, Isleworth?
No fixed boundary. When St Mary's Catholic Primary School, Isleworth is oversubscribed, Hounslow allocates places by its published criteria, usually ending with home-to-school distance.
Is it hard to get a place at St Mary's Catholic Primary School, Isleworth?
St Mary's Catholic Primary School, Isleworth was not full in 2025: it ran at 88% of its 420 places.
How big are the classes at St Mary's Catholic Primary School, Isleworth?
Classes at St Mary's Catholic Primary School, Isleworth average 25.4 pupils (2025/26). 3 classes have more than 30 pupils - infant classes are capped at 30 by law, with limited exceptions.
How many pupils go to St Mary's Catholic Primary School, Isleworth?
St Mary's Catholic Primary School, Isleworth has around 399 pupils on roll. 13% are eligible for free school meals.
What is attendance like at St Mary's Catholic Primary School, Isleworth?
4.9% of sessions were missed at St Mary's Catholic Primary School, Isleworth in 2024/25. 12.6% of pupils were persistently absent (missing 10% or more of sessions).
How do I apply to St Mary's Catholic Primary School, Isleworth?
Apply through Hounslow's coordinated admissions process, naming St Mary's Catholic Primary School, Isleworth on your application. Applications for Reception places starting in September 2027 close on Friday 15 January 2027, and offers are made on Friday 16 April 2027.
Does St Mary's Catholic Primary School, Isleworth have a breakfast club or after-school club?
Ofsted's childcare register lists 6 out-of-school clubs within a kilometre of St Mary's Catholic Primary School, Isleworth: Pins & Needles Club LTD (180m away, registered, not yet graded), Dolce Senso Bake N Play After School Club (180m away, registered, not yet graded) and KOOSA Kids Breakfast, After School and Holiday Club at The Blue School, Isleworth (180m away, registered, not yet graded). The school may also run its own clubs, which don't have to register with Ofsted.
How many road collisions happen near St Mary's Catholic Primary School, Isleworth?
Within 500 m of the school's mapped location, police recorded 44 road collisions in which someone was injured in 2021 to 2025: none fatal, 10 serious and 34 slight. 5 children aged 0 to 15 were hurt: 1 on foot, 2 on a bicycle and 2 in a vehicle or otherwise. 17 of the collisions happened on a weekday between 08:00 and 09:30 or 14:45 and 16:30, holidays included. The typical figure for schools in Hounslow is 52.5 (the median across 90 schools, same distance and years).
Where is St Mary's Catholic Primary School, Isleworth?
St Mary's Catholic Primary School, Isleworth is at South Street, Isleworth, TW7 7EE.
Source: Department for Transport, Road Safety Data (STATS19)