How do you work out my unmetered charges?

Most unmetered charges are based on the rateable value of your property.

Although this is no longer used for local taxation, we are required by law to use a rateable value as a basis for working out our charges.

Charges based on rateable value do not reflect the amount of water used. The higher the rateable value of your home, the greater your charges will be.

Ofwat has more information on rateable values.