Girls secondary school in Sidcup, Bexley
Blackfen School for Girls
Blackfen Road, Sidcup, Kent, DA15 9NU
Ofsted
Inspected under the current framework, which gives no overall grade, on 11 March 2025.
Inspections since September 2024 do not give an overall grade, so there is no one-word judgement to report. The full report sets out what inspectors found.
GCSE results 2024/25
Attainment 8 score
The average grade across eight GCSEs, doubling English and maths. 50 is roughly a grade 5 average.
Grade 5+ in English & maths
Grade 4+ in English & maths
EBacc average point score
Entered the EBacc
On Attainment 8 this school is in the lower half of state-funded secondaries in England.
Compared with the fifth of schools whose intake is least disadvantaged, which is where this one sits, it is in the bottom quarter.
Progress 8 2023/24
Taking that range into account, progress was not statistically different from the national average. DfE bands this as average.
Progress 8 measures how far pupils moved between the end of primary and their GCSEs, which makes it far fairer than raw attainment. It is shown for 2023/24 because it could not be calculated for 2024/25: that year group would have sat their key stage 2 tests in summer 2020, when the tests were cancelled, so there is no starting point to measure from. Every school in England is affected, not just this one.
A levels 2024/25
- Average grade per entry
- C+
- Average points per entry
- 34
- A level students
- 135
England average 32.3
Pupils
- Pupils on roll
- 1324
- Places
- 1500
- How full
- 88% full — 1324 of 1500 places taken
- Girls / boys
- 1240 / 84
- Overall absence
- 10%
- Persistently absent
- 28%
secondary schools average 8.6%
secondary schools average 23.9% — pupils missing 10% or more of sessions
- Free school meals, last 6 years
- 19%
- English as an additional language
- 17%
- With an EHC plan
- 4%
- On SEN support
- 6%
England 25.7%
England 18.7%
England 3.5%
England 15%
What pupils do next
After GCSEs
- In education, work or training
- 95%
- Stayed in education
- 91%
- Started an apprenticeship
- 4%
- Stayed at this school's sixth form
- 67%
- No sustained destination
- 3%
- Pupils in the cohort
- 226
England 91.4%
England 85.4%
England 3.5%
England 5.8%
After sixth form
- Went to university
- 41%
- In education, work or training
- 82%
- Started an apprenticeship
- 7%
- Students in the cohort
- 174
England 50%
England 84.3%
England 6.5%
Going on to university 2021/22 leavers
Went to a top third university
The third of higher education providers whose entrants hold the highest average entry qualifications. It is the closest thing in the public data to "did they get into a competitive university", and it separates schools far more sharply than the headline progression rate does.
- Went on to a degree
- 46%
- Students in the cohort
- 186
England 65.3%
These follow an earlier group of leavers than the figures above, and count anyone reaching higher education within two years rather than the term after leaving, so they are not directly comparable with them.
A destination counts only if it lasted at least six months, which is why these figures lag the exam results by a year, and why the university figures track leavers from 2021/22. Small cohorts move these percentages a long way — check the cohort size before reading much into a gap.
The neighbourhood around the school
Census 2021 figures for Bexley 021D, the statistical neighbourhood the school sits in — roughly 1,500 residents. It describes the area, not the pupils, who may travel in from further away.
- Adults with a degree
- 24%
- Adults with no qualifications
- 21%
- Households owning their home
- 74%
- Households in social housing
- 6%
- Households with no car
- 20%
- Adults economically inactive
- 35%
England 33.8%
England 18.3%
England 62.7%
England 17%
England 21.9%
England 39.9%
School details
- Type
- Academy converter
- Phase
- Secondary
- Ages
- Ages 11–18
- Gender
- Girls
- Admissions
- Non-selective
- Religious character
- None
- Sixth form
- Yes
- Nursery
- No
- Boarding
- Day school
- Trust
- BLACKFEN SCHOOL FOR GIRLS
- Headteacher
- Headteacher: Carrie Senior
- Local authority
- Bexley
- Ward
- Blendon & Penhill
- Constituency
- Old Bexley and Sidcup
- URN
- 137965
The unique reference number used in all official school data.
Nearest secondary schools
| School | Ofsted | Attainment 8 | Distance |
|---|---|---|---|
| Bexley Grammar SchoolAcademy converter | Outstanding 2022 | 74.7 | 0.6 mi |
| Hurstmere SchoolAcademy converter | Requires improvement 2022 | 42.1 | 0.7 mi |
| Chislehurst and Sidcup Grammar SchoolAcademy converter | Good 2022 | 75.6 | 0.9 mi |
| Townley Grammar SchoolAcademy converter | Outstanding 2023 | 75 | 1.2 mi |
| Harris Academy FalconwoodAcademy sponsor led | No grade | 47.3 | 1.2 mi |
| Welling SchoolAcademy converter | No grade | 34.7 | 1.3 mi |
| Cleeve Park SchoolAcademy converter | Good 2024 | 39.7 | 1.4 mi |
| Leigh Stationers' AcademyAcademy converter | Good 2023 | 52.7 | 1.6 mi |
Schools with a similar intake
State-funded secondary schools nationally whose share of disadvantaged pupils is closest to this school's. This is the fairest like-for-like comparison the published data supports.
| School | Ofsted | Attainment 8 |
|---|---|---|
| Marden High SchoolFoundation school | Good 2022 | 55.1 |
| St Nicholas Catholic High SchoolVoluntary aided school | Good 2024 | 50.8 |
| Imberhorne SchoolCommunity school | No grade | 45.1 |
| St Laurence SchoolAcademy converter | Good 2022 | 54.5 |
| Chatham GrammarAcademy converter | Good 2023 | 61.8 |
| Becket Keys Church of England Free SchoolFree schools | No grade | 56 |
| Brookvale Groby Learning CampusAcademy converter | No grade | 49.5 |
| Alsager SchoolAcademy converter | Good 2023 | 51.9 |
Where these figures come from
- School details, address and pupil numbers — Get Information About Schools, the DfE register, as at 14 August 2026.
- Exam results — DfE performance tables, 2024/25, and 2023/24 for Progress 8.
- Free school meals, EAL and SEN — school census, 2024/25.
- Ofsted — Ofsted management information, latest inspections as at 30 June 2026.
- Neighbourhood figures — ONS Census 2021, lower layer super output area.
All published under the Open Government Licence v3.0. If something here looks wrong, the school's own website is the authority on admissions and open days.