Set in 1991 by drive-by valuation, and a good number are wrong
How bands were set
By valuers driving past in 1991 and estimating. Whole streets were often banded together and individual errors were never corrected.
How to check
The band of every property is public. If identical neighbouring houses are lower, that is the basis of a challenge.
The risk
A challenge can raise your band as well as lower it, and can affect neighbours. Check the comparison carefully before starting.
