Just to update you all. I informed the bank about the roof terrace not being included in registration documents and it immediately agreed to give us all the money we need for the mortage if the vendor agrees to register the terrace. Hurray!!
I then emailed and telephoned the estate agent, who expressed ‘suprise’ at the situation and slight annoyance of the extra hoops that now have to be jumped through. Anyway, I’m now waiting to hear back from the vendor…fingers crossed crossed that they will agree!
Thanks again for all your help.