Ten fire engines and about 70 firefighters were called to the London Oratory School, which admits boys aged seven to 18 and girls aged 16 to 18, on Seagrave Road in Fulham at around 10am on Wednesday.
The teenager appeared in custody at Highbury Youth Court earlier today (Friday 29th December 2023).
The fire was brought under control and no injuries have been reported, but part of an atrium in the four-storey building was damaged by fire, the London Fire Brigade said.
The school’s alumni include actor Simon Callow, trade unionist Mick Whelan, as well as the children of the former prime minister Sir Tony Blair, Harriet Harman and former deputy prime minister, Sir Nick Clegg.
The alleged arsonist was arrested on Wednesday.
A nearby shopping centre and some residential addresses were evacuated as a precaution, and residents were urged to keep their windows closed.
Fire crews from Fulham, Chelsea, Kensington, Wandsworth, Hammersmith, Clapham, Lambeth and Soho fire stations were in attendance.
London Ambulance Service said they did not treat any patients at the scene.