A Ukrainian national has been charged over a series of suspected arson attacks on two homes and a vehicle linked to Keir Starmer.
Police said Roman Lavrynovych, 21, was charged with three counts of arson with intent to endanger life.
Scotland Yard’s counter-terrorism command took over an investigation after a spate of fires in north London.
Lavrynovych was arrested in the early hours of 13 May in Sydenham, south-east London.
Bethan David, the head of the Crown Prosecution Service counter-terrorism division, said: “These charges relate to two fires at residential addresses in Islington on Sunday May 11 and in Kentish Town on Monday May 12, as well as a car fire in Kentish Town on Thursday May 8.”
Counter-terrorism detectives investigated three incidents. One was a fire at the prime minister’s family home in north-west London, which he now lets out. The blaze was reported to police by firefighters in the early hours of Monday.
Police said damage was caused to the property’s entrance but nobody was hurt.
Lavrynovych is due to appear at Westminster magistrates court on 16 May.