Hidden Mayfair mansions let for £884k a year

In Pictures: 38 Hill Street is on the market for £35 million - with the potential to create one of London's biggest and most valuable private residences.

A pair of hidden glass houses in Mayfair are being offered for sale at £25m a-piece, with the option of combining them to create a palatial £50m mansion.

In spite of the most challenging conditions in living memory, high-end agents managed to transact on some landmark properties in 2020. From ultra-prime penthouses to fairytale castles;