Can you tell me an area where average house prices have doubled in the last 5 years? I can't think of one. Most expensive areas have gone sideways since Brexit, and risen a bit since the pandemic. Most cheap areas have grown slowly since Brexit.

https://www.bloomberg.com/graphics/property-prices/london/ shows the median as having gone up around 6% in total since 2017. Trying a mix of neighbourhoods in that tool, I can't see any which are close to 100% up.