In order to gain admission into Beaconsfield High School, students from Buckinghamshire primary schools are required to take the 11+ examination and score an average of 121/141 across at least one exam, although students who score in the region of 117 will be considered for 'appeal'.

Beaconsfield High School has three netball courts which are converted into tennis courts in the summer, a 400m athletics track, a fitness gym and a sports hall which was opened in 2005 and can be used for sports including indoor hockey, indoor netball, badminton, volleyball, gym, trampolining and indoor athletics.

Penny Castagnoli became the head teacher in 1995 and resigned from her post in August 2009.

Owain Johns, deputy head and the head of design and technology department was the acting headteacher, although the school made a decision to employ Sally Jarrett who was offered the role and then stepped down.

[3] In April 2012 Annette France was appointed as headteacher; she resigned from her post in 2015.