The yearly council tax of a £10M house in central London is the same as a £320K house: https://www.westminster.gov.uk/council-tax/council-tax-bands-and-charges

The yearly council tax of a £10M house in central London is the same as a £320K house: https://www.westminster.gov.uk/council-tax/council-tax-bands-and-charges https://www.westminster.gov.uk/council-tax/council-tax-bands... So where did you get £300K/year from? Or are you saying that is what it should be?