The school was founded in 1977 as Bullsmoor School, a purpose-built comprehensive school.[2][3] It was later renamed Lea Valley High.
Lea Valley High School became the first specialist sports college in Enfield in September 2002.[4] The school was re-built in 2003 and work was finished in 2006. In January 2009 it was recognised as one of the top 30 improved schools in the country, at 24th place, with 67.4% of students achieving GCSEs grades A*-C and 5 good GCSE grades or equivalent including Maths and English.