The "romantic Gothic towers and verdant lawns" at North End, a building of historical significance, dominated the area, but in 1968 the whole edifice was torn down for redevelopment, despite public opposition.

A traditional curriculum is studied by all pupils, with optional subjects at GCSE such as Mandarin Chinese becoming more popular.

For this change, a new state-of-the-art Sixth Form Centre was built, and opened by the Mayor of London, Boris Johnson.

The school has a climbing wall, two large astro-turf pitches and four hard tennis courts, along with pitches for rugby, cricket, soccer, and athletics, as well as the school's nearby field, Sandilands, and an indoor sports centre, with two large halls, several squash courts, a gymnasium, and an accompanying weights-room.

The school’s music facilities include a recording suite and a dedicated choir room.

The current headmaster is Alasdair Kennedy, previously Deputy Master at Dulwich College, who joined the school in September 2016 on the retirement of Mark Bishop.

[1] The Combined Cadet Force (CCF) at Trinity consists of the three sections (Army, RAF and RN).