 The school was previously a "failing school" in "Special Measures" by Ofsted in 2005 and subsequently deemed "Satisfactory".Hendon School has sustained five years of improving results at GCSE, and in 2011 63% of students achieved 5 A*-C grades, which puts the school in 16th place out of 24 schools in Barnet local authority.At A level, the school is in the bottom 15% of Barnet schools, ranking 23rd out of 26 schools for 3 A Levels achieved.