Do a detailed survey of your house for cracks or anything like that and take lots of photos. Then if something does materialise, at least you will have evidence of things being ok beforehand. IF you do find anything you can attach a crack gauge to it and photo it weekly as the works progress and complain to the builders ASAP. At this point you would want to engage a structural engineer to handle your side of things I would think.
I have been involved in construction projects previously where maximum vibration levels at neighbouring properties were stipulated in the planning, and we had to monitor vibrations at these locations - check whether there is anything listed in this application.