<p><pre><code>  How are property taxes calculated in [...] London?
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Properties are assigned to a tax band based on the tax office&#x27;s assessment of the house&#x27;s value were it to have been sold in April 1991. Bands vary from A (less than £40,000) to H (more than £320,000).<p>The council tax ratios between the bands are fixed - so a band A property always pays one third the price of a band H property. The band a house is assigned to is essentially permanent, although you can appeal if it&#x27;s not in line with equivalent properties in the same area.<p>This provides certain desirable properties - more expensive properties pay more, but your bill doesn&#x27;t go up just because house prices in your area go up.<p>Disadvantages are your tax bill can still go up - just it goes up for everyone by the same percentage; if an area has become much nicer (or less nice) since 1991, the council doesn&#x27;t make any more (or less) money; and valuations based on a government employee&#x27;s estimate of a hypothetical sale don&#x27;t have the idealogical purity needed to really get the support of voters.