[2]Since 2019 it has described itself as Chatham Grammar School on its website and signage,[2] reflecting the presence of boys on the sixth form roll.

However, with the outbreak of the Second World War, the school evacuated, first to Faversham in East Kent and then, in May 1940, to Pontypridd in South Wales.

[5] With the school roll now over 500,[5] and increasing to over 800 by the 1990s, further expansion was required, with a number of new blocks built on the site from the mid 1950s.

A mosaic was designed by artist Jo Letchford incorporating the school's ship emblem and the dates 1907-2007 to commemorate the centenary.

[3] As a consequence of the fall in popularity of the school and the resulting lower numbers, there were several rounds of staff redundancies.

[citation needed] In 2020 a new teaching block was built, enabling the sixth form intake to increase to 200.

In 2011, Year 10 pupils from the school presented their research in chemistry at the UK Society for Biomaterials (UKSB) Annual Conference at the University of Greenwich, London; and in 2012, the following Year 10 students submitted a poster presentation to the UKSB conference at the University of Nottingham.

In addition, many A-Level science pupils have won competitive bursaries from the Nuffield Foundation to pursue research projects during their summer vacation.