The lease is a legal document that you should be given a copy of after purchasing the house. You can check this for the lease lengths to find out how long is left on your leasehold. If you don’t have a copy of the lease, you can obtain one from your mortgage lender or solicitor, or by ordering one from the Land Registry. You should also check the lease length and other lease terms before buying the leasehold property to make sure you’re happy to go ahead with the purchase.