Form TR1 to transfer a registered property. You also need to use application Form AP1 to register this transfer.
Use form TR1 to transfer the whole of the land in one or more registered titles. You may also use it to transfer a plot of unregistered land which is to be registered for the first time. You cannot use this form to transfer part of a registered title. If you want to do this, you need to use Land Registry form TP1.