Buildings Insurance Subsidence Why Is N10 Classed As A Subsidence Postcode By Insurance Companies? When And Where Was The Last Case Registere

Why is N10 classed as a subsidence postcode by insurance companies? When and where was the last case registere - buildings insurance subsidence

I asked for a building insurance quote from a plot with an N10 postocode. I received offers from € 46 to € 200 per month. I fear that has never been a claim by the collapse of the company should be quoted me £ 46 paid.