The estimated market value of the dwelling as at 1st April 1991, determines what the banding value is.
To find out what band your property is in visit the Valuation Office website and see Mendip District Council's table of for each village and town.
Challenge your Council Tax band
Challenging your Council Tax band does not allow you to withhold payment of tax pending the hearing of the appeal. If your appeal is successful you will be entitled to a refund of any overpaid tax
Please visit GOV.UK website for more information about how to Challenge your Council Tax band