Thank you for confirming my fear. The building control people have just told me that the work has not in fact finished and so it may still be possible to act. The building owner intends to sell the house as soon as the work is finished. Who would be liable for the damage in that case if the damage to my property is not indentfied until after the sale? Would the new owner be liable? In any event, could you please confirm that this is the type of neighbour dispute that has to be declared to possible purchasers?
For the attention of UKSolicitorJA only:
Thank you again and I have done what you advise. Would it be a reasonable thing for me to ask a solicitor to write to my neighbour to set out her responsibility and liability for any damage incurred. She does not live at the house next door, has refused to give a home address but has given me her card with business address ( she is a GP) - so a letter would reach her. Thank you again, Jackie