Wonder if anyone can advise re; neighbours structural works? We are both mid terrace Victorian, two up two down, galley kitchens originally. New neighbour has bought the house next door and has applied for PP to demolish existing conservatory and build a single storey extension. We bought our house with the extension already done and she has asked, verbally, to use our footings which I'm not keen on. She will also be creating a third bedroom and bathroom by removing the chimney breast from top to bottom and installing an extra window which will now overlook our kitchen sky light and patio.
We are not opposed to the works but have some concerns. She hasn't sent any kind of party wall notice yet to us or the neighbours on the other side (and has said we'd need to pay for a surveyor ??). We also dont want our foundations being used as we're not sure how structurally strong they are ourselves although I assume ours was signed off at the time (quite a few years old).
We have an opportunity to comment on the planning portal and don't want to be adversarial but at the same time we're anxious about structural problems affecting our property. What do we need to say?