The three-storey eight-bed house in Ilchester Place, which is on the market with a £13m price tag, has raked in £130 an hour since it was last sold in 2007.
The rising value of the house has netted its owner - the government of Quebec - nearly £10m in that time as the house now commands more than four times the purchase value.
Ilchester Place, a property hotspot just moments from Kensington High Street and home to stars such as Robbie Williams and Jimmy Page, is the most profitable street in Britain. Last year, one owner of another eight-bedroom property made £132 an hour over 15 years.
The £130 an hour income is more than six times that of most Londoners, who earn on average £40,000 a year.
The property, listed on Rightmove, also comes with three bathrooms, a cellar, attic and gardens to the front and rear. The house also includes planning permission for a near 6,000 sq ft extension.
Here's a peek inside.