Service charges (including major works) are calculated and payable under the terms and conditions of your lease agreement by reference to the block percentage.

This is calculated on the basis of the Gross Rateable Value of your flat as a proportion of the total of all the Gross Rateable Values of all the flats in the block. It is for this reason that say, a three bedroom flat will have a higher block percentage than a one bedroom flat in the same block.

If your neighbour lives in another block altogether, then it stands to reason that block percentage for your flat can only take account of the flats in your block, whilst your neighbour's block percentage will, for the same reason, only take account of all the flats in that block.

If you are still unsure as to how your lease percentage is calculated, then please contact the Finance Department (Property Accounts Section) on (020) 8871 7559 or by email at propertyaccts@wandsworth.gov.uk for assistance. Please provide your full name, the address and postcode of the leasehold property concerned, your address (if different) and your service charge account reference number to help us identify you as the leaseholder concerned. A daytime telephone number will also be helpful.