Clifton George, 44, will appear at Thames Magistrates’ Court on Monday.
He has also been charged with arson with intent to endanger life, the Metropolitan Police said.
Charity worker Annabel Rook was found fatally injured at a property in Dumont Road, Stoke Newington, northeast London, just before 5am on Tuesday.
This breaking news story is being updated and more details will be published shortly.
Please refresh the page for the latest version.
You can receive breaking news alerts on a smartphone or tablet via the Sky News app. You can also follow us on WhatsApp and subscribe to our YouTube channel to keep up with the latest news.