The regional average hides a much sharper correction at the top end. Westminster, covering Mayfair, Belgravia and St John’s Wood, saw its average price fall 25.4% year-on-year to £854,000, a drop of £291,000. Kensington and Chelsea, still England’s most expensive borough at £1.25 million, fell 14.7%. Hammersmith and Fulham dropped 13.3% to £726,000, and Camden fell 7.1% to £833,000.