Southfield School for Girls is an average-sized single-sex secondary school. It has a mixed sixth form. Southfield School for Girls converted to become an academy in August 2011. When the predecessor school of the same name was last inspected by Ofsted in November 2010, its overall effectiveness was judged to be good. Most students are White British. The proportion of students from minority ethnic groups and the proportion who speak English as an additional language are both below national figures. The proportions of disabled students and those who have special educational needs and are supported through school action, school action plus or who have a statement of special educational needs are all below average. The proportion of students supported through the pupil premium is below average. This additional funding is given to schools for children in local authority care, those known to be eligible for free school meals and other groups. A small number of students are educated off-site in alternative provision provided by ‘Complementary Education’ and the ‘Hospital and Outreach Education Service’. The school meets the government’s current floor standards, which set the minimum expectations for students’ attainment and progress. The school has consortium arrangements for the sixth form with two other schools, The Latimer Arts College and Montsaye Academy. The school does not enter any students early for GCSE examinations in English or mathematics. The current headteacher, who was previously the deputy in the school, was appointed as acting headteacher in the summer term 2012 and was appointed as substantive head in September 2012. A new deputy headteacher took up a part-time post for two days a week in June 2013 and became full time from September 2013. The headteacher is an accredited facilitator for the National College of Teaching and Leadership Middle Leader Development Programme which runs within Southfield School for Girls.