London's property market is experiencing a surge in sales of £10m-plus homes, with almost 200 properties sold in the past year, according to research by Knight Frank. The number of high-end sales is the highest since 2014, when stamp duty changes were introduced. The super-rich are opting for luxury homes in the capital over country retreats, spending over £3.4bn on "super prime" properties. Mayfair, Kensington, and Belgravia are the most popular locations for these transactions. While London's property market thrives, sales of expensive homes in the countryside have declined. The enduring appeal of London as a global "super city" and its relative affordability compared to a decade ago are driving the strong performance.