Violence against women and girls (VAWG) has increased over the last year, with a 7.4 percent rise in sexual offences in the 12 months up to January 2025.
Will Balakrishnan, director of commissioning and partnerships at the Mayor's office for policing and crime, said the issue was "endemic" in the capital.
The findings were revealed during a committee meeting of The London Assembly on Wednesday, which was hosting the second phase of its investigation into the issue facing the capital.
Deputy assistant commissioner Alexis Boon told the committee that the problem was "huge" and that solutions relied on societal changes, while Susan Hall of the Police and Crime Committee said the meeting was “timely” following the sentencing of Kyle Clifford.
Crossbow killer Clifford, 26, was handed a whole life sentence for the murders of his ex-girlfriend Louise Hunt, her mother Carol and sister Hannah.
Mr Balakrishnan cited a Girlguiding report at the meeting, the BBC reported, which said 95% of women aged 17-21 experience sexism, with nearly half feeling less safe as a result.
The report said 77% of girls interviewed had experienced sexism online.
Jane Peck, the director of the Mayor's Violence Reduction Unit, informed the committee that she had witnessed the impact the Tate brothers have had on young people, particularly in promoting misogynistic ideals aimed at young women.
Jain Lemom, head of tackling violence against women and girls at the Mayor's office for policing and crime (MOPAC), told the group that "boys are being pushed towards a view of masculinity" which was "a big worry".
Concerns were also raised around Mayoral budget cuts on services and the closure of the Cyber Helpline which helps victims of cybercrime and digital fraud, including victims of VAWG in London.
The BBC reported that the Metropolitan Police's Deputy Assistant Commissioner, Alexis Boon, stated that violence in the capital was being underreported.
By increasing reporting of these issues, he said “ we can tackle it more effectively and tackle the underlying causes”.
He added the Met "wasn't going to solve it" and that “fundamentally we need to change the way we treat women and girls as a society.”
