Constituents in Hampstead and Highgate will see an average increase in their water bill of £8 to £189 and an average decrease in the sewerage bill of £4 to £114. The impact of the new charges will vary between individual household customers, depending on whether or not they have a water meter.

More information is available on Ofwat's website at http://www.ofwat.gov.uk and on Thames Water's website at http://www.thameswater.co.uk