House prices in Kensington and Chelsea have declined by 6.7% since October 2018, an analysis of Land Registry data by Springbok Properties has found.
This was closely followed by the City of Westminster with a drop of 5.6%.
On average the UK market has seen price growth rise by 0.5% since last year.
Shepherd Ncube, founder and chief executive of Springbok Properties, said: “It won’t just be ghastly apparitions haunting homeowners across the UK this year with political uncertainty causing many to turn white when it comes to the declining value of their home, particularly those in Kensington and Chelsea.
“Let’s hope by next Halloween we’ve laid the ghosts of Brexit to rest and property prices in the UK’s worst-hit areas have been resurrected.”