Large terraced Victorian era houses
Neighbour wants to build out at the back and take down garden wall to put in foundations for their permitted extension then rebuild wall to higher level as it will form the side wall of their extension.
They've issued a party wall notice but it just has a sketch attached, no formal plans and only outline construction methodology (we'd like much more re specifics of materials and methodology as we could be letting ourselves in for all sorts of damp ingress issues if it's not done carefully, having lived here for 20 years we know how prone these houses are to damp from any little possible way in for the rain).
Are we being unreasonable to expect a lot more detail than one side view sketch of just what we will see form our side (they don't need planning permission) to satisfy ourselves that this will be done to a suitable standard to prevent possible complications and costs for us in the future.
I feel so uncomfortable as we really want to be able to live in harmony going forward but don't want to just roll over and agree to something we are unsure of.
They've gone on holiday now and the letter states that we need to respond within a fortnight so before they get back.
I hate conflict of any sort, it keeps me awake at night worrying about it.