Baroness Margaret Thatcher’s five-bedroom Belgravia home is set to go on sale for £35m.
The Iron Lady’s home at 73 Chester Square is where she continued to live there until a few months before her death.
According to the Standard, the home is being transformed into a 7,000 sq ft mansion by adding the adjacent mews property and creating a two-level basement.
“There is no other property that can boast it was the final family home of the Iron Lady,” a surveyor told the paper.
Back in January, the home was valued at £12m. Surveyors say the “blue plaque effect” has helped add millions to the property.