In Clarendon Road in Notting Hill, which is now the second-most expensive street in Britain, average prices actually rose by £5m, from £15m to £20m, according to Halifax.Mr Scarisbrick said the area has become popular since Covid because of its access to communal gardens and array of spacious houses.By contrast, Grosvenor Square tends to be dominated by flats, which have lost some of their allure since the pandemic.Mr Scarisbrick said buyers in these areas tend to be living in Britain as their primary residence, have children in local schools, and...