Hello Ian - As the property is not registered, you will need to submit an application for first registration.
Please see the guidance under Transfer unregistered land or property to the surviving owner and a beneficiary. You can ignore the reference to surviving owner in your case. Also refer to our Practice Guide 6.
Land registration is complex, designed to protect legal and financial interests in property. There can be significant consequences for any error. Please consider seeking legal representation. Before making an application without legal representation, it is important to consider the benefits of using a conveyancer.