If you have a leasehold property it means you are restricted as to what you can do with your property by the terms of that lease.  At the end of the lease you must also return the property to the landlord, although there are mechanisms by which we can help you extend your lease.  Some mortgage companies will require a minimum term left on a lease before they will grant a mortgage, consequently if you are selling a leasehold property you may need to extend the lease prior to your sale in order to increase the marketability of your home.