Joshua Mangas

De La Salle School

  • Secondary
  • Voluntary aided school
  • Ages 11 to 16
  • Roman Catholic

URN 115237 · Essex

In Essex

Inspection

Ofsted management information, as at 30 September 2026.

Latest graded inspection

9 October 2018

Overall effectiveness
Good

Under the earlier framework, inspections gave an overall effectiveness grade.

Ungraded inspection

2 May 2024

“School remains Good”

An ungraded inspection checks that the school is still at the standard of its last graded inspection. It does not give a new grade.

Read the reports on Ofsted’s website. Source: Ofsted, State-funded school inspections and outcomes: management information.

Attendance

Against Essex and England, secondary schools.

Overall absence

2024/25

7.9%

Essex
8.7%
England
8.4%

0.5 percentage points lower than England.

5.47.18.72017/182024/25
This schoolEssexEnglandShaded: COVID years, no comparable data
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Overall absence
YearThis schoolEssexEngland
2017/185.1%5.3%5.5%
2018/195.3%5.4%5.5%
2020/216.0%5.1%5.5%
2021/228.3%9.0%9.0%
2022/238.8%8.8%9.0%
2023/248.3%8.8%8.9%
2024/257.9%8.7%8.4%

Sessions missed for any reason, as a share of all possible sessions in the school year. Source: Department for Education, Explore Education Statistics, Pupil absence in schools in England, 2024/25.

Persistent absence

2024/25

20.6%

Essex
23.6%
England
23.4%

2.8 percentage points lower than England.

13.820.326.72017/182024/25
This schoolEssexEnglandShaded: COVID years, no comparable data
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Persistent absence
YearThis schoolEssexEngland
2017/1813.4%12.8%13.9%
2018/1913.3%13.3%13.7%
2020/2118.8%13.7%14.8%
2021/2226.7%27.4%27.7%
2022/2326.6%25.4%26.5%
2023/2423.2%24.6%25.6%
2024/2520.6%23.6%23.4%

Pupils who missed 10% or more of their possible sessions, as a share of pupils. Source: Department for Education, Explore Education Statistics, Pupil absence in schools in England, 2024/25.

Severe absence

2024/25

3.8%

Essex
4.3%
England
3.9%

0.1 percentage points lower than England.

0.82.44.02017/182024/25
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Severe absence
YearThis schoolEssexEngland
2017/180.8%1.0%1.2%
2018/190.5%1.1%1.3%
2020/211.4%1.2%1.5%
2021/222.2%2.8%2.7%
2022/232.4%3.3%3.4%
2023/243.3%3.8%3.8%
2024/253.8%4.3%3.9%

Pupils who missed 50% or more of their possible sessions, as a share of pupils. Source: Department for Education, Explore Education Statistics, Pupil absence in schools in England, 2024/25.

Suspensions and permanent exclusions

Against Essex and England, secondary schools.

Suspensions per 100 pupils

2024/25

16.99

Essex
18.44
England
21.24

4.25 lower than England.

7.714.621.62017/182024/25
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Suspensions per 100 pupils
YearThis schoolEssexEngland
2017/186.787.6010.13
2018/1918.1710.0910.75
2019/206.666.887.43
2020/2110.557.808.48
2021/2214.2313.7513.96
2022/2315.1118.8218.90
2023/2421.0620.6122.61
2024/2516.9918.4421.24

Suspensions in the school year for every 100 pupils on roll. One pupil can be suspended more than once. Source: Department for Education, Explore Education Statistics, Suspensions and permanent exclusions in England, 2024/25.

Permanent exclusions per 100 pupils

2024/25

0.26

Essex
0.18
England
0.23

0.03 higher than England.

0.00.10.32017/182024/25
This schoolEssexEnglandShaded: COVID years, no comparable data
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Permanent exclusions per 100 pupils
YearThis schoolEssexEngland
2017/180.270.080.20
2018/190.130.070.20
2019/200.000.070.13
2020/210.000.060.10
2021/220.000.090.16
2022/230.000.140.22
2023/240.000.160.25
2024/250.260.180.23

Permanent exclusions in the school year for every 100 pupils on roll. Source: Department for Education, Explore Education Statistics, Suspensions and permanent exclusions in England, 2024/25.

Key stage 4 results

Against Essex and England, secondary schools.

Attainment 8

2025/26 (provisional)

46.0

Essex
46.3
England
47.4

1.4 lower than England.

42.345.849.32021/222022/232023/242024/252025/26
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Attainment 8
YearThis schoolEssexEngland
2021/22Not published48.849.8
2022/23Not published46.347.2
2023/2444.645.646.9
2024/2541.846.047.1
2025/26 (provisional)46.046.347.4

The average of pupils' points across eight GCSE-level qualifications, with English and maths counted twice. Source: Department for Education, Explore Education Statistics, Key stage 4 performance, 2025/26.

English and maths: grade 4 or above

2025/26 (provisional)

65%

Essex
65%
England
66%

1 percentage point lower than England.

5864692021/222022/232023/242024/252025/26
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English and maths: grade 4 or above
YearThis schoolEssexEngland
2021/22Not published70%70%
2022/23Not published65%67%
2023/2465%65%67%
2024/2557%65%66%
2025/26 (provisional)65%65%66%

Pupils at the end of key stage 4 with grade 4 or above in both English and maths. Source: Department for Education, Explore Education Statistics, Key stage 4 performance, 2025/26.

English and maths: grade 5 or above

2025/26 (provisional)

43%

Essex
45%
England
48%

5 percentage points lower than England.

4146502021/222022/232023/242024/252025/26
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English and maths: grade 5 or above
YearThis schoolEssexEngland
2021/22Not published49%51%
2022/23Not published44%46%
2023/2441%44%47%
2024/2540%44%47%
2025/26 (provisional)43%45%48%

Pupils at the end of key stage 4 with grade 5 or above in both English and maths. Source: Department for Education, Explore Education Statistics, Key stage 4 performance, 2025/26.

Pupils

Against Essex and England, secondary schools.

Eligible for free school meals

2024/25

26.1%

Essex
19.2%
England
25.8%

0.3 percentage points higher than England.

16.222.528.72021/222022/232023/242024/25
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Eligible for free school meals
YearThis schoolEssexEngland
2021/2228.7%15.3%20.9%
2022/2329.6%16.9%22.7%
2023/2429.3%18.1%24.1%
2024/2526.1%19.2%25.8%

Pupils known to be eligible for free school meals on census day in January. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.

SEN support

2024/25

11.6%

Essex
12.8%
England
13.4%

1.8 percentage points lower than England.

9.311.213.12021/222022/232023/242024/25
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SEN support
YearThis schoolEssexEngland
2021/229.0%10.5%11.9%
2022/239.9%11.3%12.4%
2023/2411.1%12.1%12.9%
2024/2511.6%12.8%13.4%

Pupils receiving special educational needs support without an education, health and care plan. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.

Education, health and care plan

2024/25

6.1%

Essex
2.7%
England
3.1%

3.0 percentage points higher than England.

2.54.25.82021/222022/232023/242024/25
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Education, health and care plan
YearThis schoolEssexEngland
2021/223.7%2.2%2.2%
2022/233.7%2.3%2.4%
2023/244.9%2.5%2.7%
2024/256.1%2.7%3.1%

Pupils with an education, health and care plan. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.

First language other than English

2024/25

17.3%

Essex
9.5%
England
19.2%

1.9 percentage points lower than England.

8.013.218.42021/222022/232023/242024/25
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First language other than English
YearThis schoolEssexEngland
2021/2219.1%7.2%17.5%
2022/2317.7%8.0%18.1%
2023/2417.5%8.6%18.6%
2024/2517.3%9.5%19.2%

Pupils whose first language is known or believed to be other than English. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.

Teachers

Against Essex and England, secondary schools.

Pupils per qualified teacher

2025/26

17.3

Essex
18.1
England
17.3

The same as England.

16.317.418.42017/182025/26
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Pupils per qualified teacher
YearThis schoolEssexEngland
2017/1818.117.016.5
2018/1918.218.016.8
2019/2017.517.917.2
2020/2116.117.917.1
2021/2217.117.917.1
2022/2318.118.117.2
2023/2416.918.617.4
2024/2517.518.217.3
2025/2617.318.117.3

Full-time equivalent pupils for each full-time equivalent qualified teacher. Source: Department for Education, Explore Education Statistics, School workforce in England, 2025/26.

Teacher sickness absence

2024/25

6.6 days

Essex
4.4 days
England
5.0 days

1.6 days higher than England.

Compared with all state-funded schools: DfE publishes this measure for all schools, not by phase.

1.13.76.22017/182024/25
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Teacher sickness absence
YearThis schoolEssexEngland
2017/180.7 days3.8 days4.0 days
2018/194.3 days3.9 days4.0 days
2019/20Not publishedNot publishedNot published
2020/212.0 days3.4 days3.9 days
2021/226.2 days5.8 days6.3 days
2022/235.9 days4.6 days5.2 days
2023/245.7 days5.0 days5.3 days
2024/256.6 days4.4 days5.0 days

Days lost to sickness absence in the school year, averaged across all teachers. Source: Department for Education, Explore Education Statistics, School workforce in England, 2024/25.

Finance

DfE publishes this maintained school’s income, spending and balances in its Financial Benchmarking and Insights Tool, which has no stable download, so this site links to it rather than copying the figures.

See this school in the Financial Benchmarking and Insights Tool

About the school

Pupils on roll
761
Capacity
750
Type
Voluntary aided school
Phase
Secondary
Age range
11 to 16
Sixth form
Does not have a sixth form
Admissions
Non-selective
Gender
Mixed
Religious character
Roman Catholic
Setting
Urban: Nearer to a major town or city
Constituency
Basildon and Billericay
Deprivation of the area (IDACI)
Decile 3 of 10 (1 is the most deprived tenth of neighbourhoods)

Address: Ghyllgrove, Basildon, Essex, SS14 2LA

Website: www.dlsbasildon.org

Telephone: 01268281234

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Sources and corrections

Every figure on this page names its source and period. This release was built on 20 October 2026.

Spotted something wrong? Report a correction with the school’s URN (115237). Fixes go out in the next weekly release.