{"url":"/school/137965/blackfen-school-for-girls","urn":137965,"name":"Blackfen School for Girls","phase":"secondary","type":"Academy converter","local_authority":"Bexley","address":{"line1":"Blackfen Road","town":"Sidcup","postcode":"DA15 9NU","latitude":51.44862,"longitude":0.112144},"ofsted":{"current_category_of_concern":null,"inspections":[{"framework":"oeif","framework_label":"Ofsted graded inspection (previous framework)","inspection_date":"2025-03-11","overall_effectiveness":"Not judged","category_of_concern":null,"note":"The current framework awards no overall grade; a previous-framework grade is not a school's current one."},{"framework":"ungraded","framework_label":"Ofsted ungraded inspection","inspection_date":"2019-12-18","overall_effectiveness":null,"category_of_concern":null,"note":"The current framework awards no overall grade; a previous-framework grade is not a school's current one."}]},"demand":{"entry_point":"year_7","measure":"first preferences expressed divided by offers made","not_a_prediction":"It describes demand. It does not indicate whether any particular child would be offered a place.","movement":{"headline":"Fewer families are naming it first","earlier_span":"2021–2022","later_span":"2024–2025","earlier_ratio":0.7,"later_ratio":0.57,"years_used":5},"by_year":[{"intake_year":2025,"first_preferences":111,"all_preferences":472,"offers_made":180,"first_preferences_per_place":0.62,"national_percentile":11.0},{"intake_year":2024,"first_preferences":116,"all_preferences":554,"offers_made":223,"first_preferences_per_place":0.52,"national_percentile":6.0},{"intake_year":2023,"first_preferences":144,"all_preferences":638,"offers_made":224,"first_preferences_per_place":0.64,"national_percentile":13.0},{"intake_year":2022,"first_preferences":182,"all_preferences":635,"offers_made":230,"first_preferences_per_place":0.79,"national_percentile":25.0},{"intake_year":2021,"first_preferences":141,"all_preferences":682,"offers_made":232,"first_preferences_per_place":0.61,"national_percentile":13.0},{"intake_year":2020,"first_preferences":189,"all_preferences":718,"offers_made":227,"first_preferences_per_place":0.83,"national_percentile":30.0},{"intake_year":2019,"first_preferences":177,"all_preferences":806,"offers_made":230,"first_preferences_per_place":0.77,"national_percentile":24.0},{"intake_year":2018,"first_preferences":218,"all_preferences":775,"offers_made":214,"first_preferences_per_place":1.02,"national_percentile":62.0},{"intake_year":2017,"first_preferences":144,"all_preferences":667,"offers_made":217,"first_preferences_per_place":0.66,"national_percentile":13.0},{"intake_year":2016,"first_preferences":160,"all_preferences":731,"offers_made":208,"first_preferences_per_place":0.77,"national_percentile":20.0},{"intake_year":2015,"first_preferences":184,"all_preferences":718,"offers_made":207,"first_preferences_per_place":0.89,"national_percentile":36.0},{"intake_year":2014,"first_preferences":164,"all_preferences":695,"offers_made":210,"first_preferences_per_place":0.78,"national_percentile":19.0}]},"results":{"note":"Withheld figures appear as null, never zero. Progress measures are estimates published with a 95% interval.","key_stage_4":[{"academic_year":2024,"attainment8":44.1,"progress8":null,"progress8_confidence_interval":null,"english_and_maths_grade_4_plus_percent":61.0,"ebacc_grade_4_plus_percent":14.5},{"academic_year":2023,"attainment8":46.9,"progress8":-0.14,"progress8_confidence_interval":[-0.34,0.05],"english_and_maths_grade_4_plus_percent":68.2,"ebacc_grade_4_plus_percent":16.1},{"academic_year":2022,"attainment8":46.4,"progress8":-0.11,"progress8_confidence_interval":[-0.3,0.08],"english_and_maths_grade_4_plus_percent":71.7,"ebacc_grade_4_plus_percent":12.4}],"key_stage_2":[]},"workforce":{"note":"Full-time equivalents, not headcounts. Teacher turnover only: carries no claim about heads or senior leaders.","by_year":[{"academic_year":2024,"teacher_fte":78.1,"remained":72.4,"left_the_system":4.0,"left_to_other_school":1.7,"left_percent":7.3},{"academic_year":2023,"teacher_fte":78.8,"remained":65.6,"left_the_system":10.0,"left_to_other_school":3.2,"left_percent":16.8},{"academic_year":2022,"teacher_fte":73.6,"remained":62.4,"left_the_system":5.4,"left_to_other_school":5.8,"left_percent":15.2},{"academic_year":2021,"teacher_fte":78.0,"remained":62.4,"left_the_system":7.0,"left_to_other_school":8.6,"left_percent":20.0},{"academic_year":2020,"teacher_fte":77.2,"remained":70.8,"left_the_system":4.4,"left_to_other_school":2.0,"left_percent":8.3},{"academic_year":2019,"teacher_fte":79.2,"remained":67.4,"left_the_system":7.8,"left_to_other_school":4.0,"left_percent":14.9}]},"catchment":{"status":"none_published","note":"no_zone_published means we hold no zone for this school. It does not mean an address is outside one.","zones":[]},"how_places_were_allocated":[],"how_the_places_were_shared_out":[],"sources":[{"label":"Department for Education: Get Information about Schools","detail":"School identity, type, phase and address","url":"https://get-information-schools.service.gov.uk/","retrieved":"2026-09-02"},{"label":"Ofsted: state-funded school inspections management information","detail":"Inspection outcomes, published monthly","url":"https://www.gov.uk/government/statistical-data-sets/monthly-management-information-ofsteds-school-inspections-outcomes","retrieved":"2026-09-04"},{"label":"Department for Education: school-level applications and offers","detail":"Preferences and offers, 2014 to 2025 intakes","url":"https://explore-education-statistics.service.gov.uk/find-statistics/primary-and-secondary-school-applications-and-offers","retrieved":"2026-09-04"},{"label":"Department for Education: key stage 4 performance","detail":"Attainment 8, Progress 8 and EBacc, by school","url":"https://explore-education-statistics.service.gov.uk/find-statistics/key-stage-4-performance","retrieved":"2026-09-04"},{"label":"Department for Education: school workforce in England","detail":"Teacher turnover, by school, from the School Workforce Census","url":"https://explore-education-statistics.service.gov.uk/find-statistics/school-workforce-in-england","retrieved":"2026-09-04"}]}