The most expensive property on the list was a six-bed terraced house in Belgravia priced at £62.5m.

The stamp duty on this property would be almost £7.5m.

If the stamp duty on all the properties on the market priced above £20m was combined, it would equal £72.23m.

Of all the properties listed, only one was found outside London (Ascot).

Alex Gosling, CEO of HouseSimple.com said: “The super prime market has suffered since the stamp duty changes, but that doesn’t mean it’s dead in the water.

“When you have £20m plus to spend, you’re unlikely to baulk at paying a few million pounds in stamp duty.

“And there are buyers out there still willing to pay premium prices to live in the most exclusive areas.

“So, what does £20m get you? Outside London you can probably pick up a country estate.

“In London, with the price per square footage so high in areas like Knightsbridge and Belgravia, you might have to lower your expectations.

“It’s staggering that a quarter of the most expensive properties on the UK market right now are flats.

“It just shows how crazy the property market is in the capital when £20m doesn’t even buy you a house!”

The top 10 most expensive residential properties on sale in the UK