A 29-year-old woman had admitted breaking a window at Simon Cowell’s West London home with a broken brick earlier this year.
Leanne Zaloumis, from south-east London, appeared at Isleworth Crown Court where she admitted intent to damage or destroy property – but she denied two further charges of affray and burglary.
She was granted bail, having already served three months in custody, but has been banned from going within 300 yards of Cowell’s home or attempting to contact him.
She has also been placed under a curfew from 7pm to 7am, and ordered to wear an electronic tag.
Cowell had been watching TV in the bedroom of the house when the incident occurred at around 10.30pm on March 24.
The X Factor and Britain’s Got Talent judge reported hearing a “loud bang” coming from the bathroom and summoned his staff for help.
Police are said to have found Zaloumis – who also is alleged to have stood on the roof of the house shouting at Cowell and throwing items – hiding in a walk-in wardrobe.
She will be sentenced on August 2.
Cowell did not attend the hearing, with a spokesperson for the mogul saying he would be making no comment on the incident.