This is source I found from another site, main source you can find in last paragraph
Realtors who thought that London’s luxury-home market would be kick started by the pound’s fall after the Brexit referendum are being left disappointed.
Sales of houses and apartments in the U.K. capital’s best districts rose less than 0.5 percent in the three months through September from a year earlier, according to data compiled by researcher Lonres. That’s based on transactions for existing homes and new properties being sold on by speculators.
Just like it did after the financial crisis, the pound’s decline and falling values have created fat discounts for Asian investors interested in buying London’s best homes. The difference now is that many upper-middle-class residents of Hong Kong and Singapore who wanted a property in the U.K. capital already have one.
They’ve “been tapped out,” said Paul Donovan, global chief economist at UBS Wealth Management.
Values have fallen 15 percent since their peak in September 2014, according to broker Savills Plc, but the pound’s decline means buyers from Hong Kong can acquire a mansion in London’s best districts for 30 percent below the record, according to Bloomberg calculations. For a purchaser in mainland China, it’s about 26 percent cheaper.