Police say they are investigating the break-in which happened in the early hours when the pop mogul and his family were sleeping.
imon Cowell’s luxury home in west London has been burgled while he and his family were inside, according to reports.
The Daily Mirror says the thieves struck at around 2am on Friday morning and escaped with cash and jewellery.
Cowell, his girlfriend Lauren Silverman and son Eric were all asleep at the time.
The Mirror quotes a source as saying: “It was clearly a very traumatic incident.
“Simon is just relieved that his family was safe and all right. Their safety is his number one priority.”
Police were sent to the £35m property in Holland Park, but the burglars had fled.
The Met said in a statement: “Police were called to an address in W14 on Friday, 4 December at approximately 02:20hrs to reports of a burglary in progress.
“Officers attended the scene but the suspects had left the area.