I am only reading the topic now because of your current post, but of course I have read the initial post and am completely puzzled: that one always keeps an eye on houses etc. in their surroundings from time to time, I can understand. But you are seriously planning now to possibly tear down the house you have always admired? Although you are happy with your current living situation? Maybe one should just let fate rest? In the end, you will „only“ change the living situation and not necessarily improve it... possibly with the demolition of the crush/dream realistically face that one should also sometimes let go of dreams/admiration, because they are mostly seen through rose-colored and unrealistic glasses (it's somehow like teenagers falling for adults or singers, actors) so, if I were you, I would give it some thought... whether it is worth it at all and if you get what you wanted or if you even want what you wanted before anymore.
Misunderstood. I like the house and the location. Only in the past few years, I have noticed in the area around the house that some houses were demolished during a change of ownership. So I am trying, before deciding whether and how much to bid, to find out what the „worst case“ of follow-up costs might be. If a basic renovation is economically feasible, I would of course prefer that. But I think we agree that demolition and rebuilding would bring the highest possible follow-up costs.