Prevent building damage caused by excavation pit?

How can one proceed sensibly to protect oneself against possible damage to the house caused by the neighbor's excavation pit? Our house is located directly on the property boundary and is a 200-year-old rubble stone house. The neighbor now wants to secure his excavation pit with sheet pile walls, which, as is well known, are driven in. We are now concerned that damage may occur due to the extensive foundation work. The soil is partly floodplain, clayey with occasional rock veins. So it is a rather difficult soil situation for the neighbors. Documenting the condition of our house is obvious, but are there any other sensible measures to prevent damage?

Yes. Do not install any sheet piling. The damage is inevitable. A bit more detail is helpful. Where exactly should the sheet piling go? Why sheet piling? Why ram it in? Is there a geological report? You can also contact me via PM.

In the post by Goalkeeper, it is explained quite precisely how to proceed, unfortunately over several pages. Nevertheless, his neighbor did not adhere to it and a construction stop was enforced.

Basically, an inventory of your house should be created first and only then should the work begin.
Then he should present a concept to start your house that you should preferably have checked.

Thank you very much for the answers! I will look for the thread. We actually get along well with the neighbors. They also regularly inform us about the planning status. Last week it was mentioned in passing that it will be a very deep excavation pit and that they are currently consulting with the architect about the support measures. For very deep pits, I only know of driven sheet piles and was already able to watch from my desk how, due to the driving, the walls in our old office building a few houses away developed fine cracks. That set off alarm bells for me yesterday, with a delay.

There are alternatives. If you say more, one can also respond to that. It goes without saying that the neighbor is securing evidence. But it doesn’t help you if the cracks get bigger. Have the concept for the excavation pit presented to you and then I will gladly take a look at it.