Many leases provide for the landlord to collect sums in advance to create a reserve or ‘sinking’ fund to ensure that sufficient money is available for future scheduled major works, such as external decorations or lift replacement. The lease will set out the arrangements for this and when regular, cyclical, maintenance works are due. Contributions to the reserve fund are not repayable when the flat is sold. If there is insufficient money in the reserve fund to deal with major works the costs will be shared between owners in the proportions set out in the individual leases.