It may be, apartments can be terminated. Most people at that age would be relieved to find affordable housing in the city.
Where does the belief come from that the children will stay in the city and even in an apartment? That seems to me the most unlikely of all possibilities. For our children, for example, the corresponding hit rate would be zero, for our acquaintances as well.
Please less speculation and life advice.
Life advice is far from me, I have enough of my own. But I do critically note that the "pre-planning/expectation" regarding your children seems unrealistic. A house, at least for most people here, has a lot to do with one’s own and current individuality. Planning a house appropriately for old age now is almost impossible and the interim period until then is also supposed to be reflected in it. Speculation is necessary when the OP does not fill out the entry form comprehensively, so that participants can also contribute appropriately; this has already been mentioned here from other sides as well.
and information is missing for that
That is exactly what I say, it makes it difficult for people here. In fact, I am not really interested in your private life, but as a forum member I do feel addressed.
Wanting to offer your children something that everyone else lacks is certainly understandable.
Actually, I do not know such a plan. I also do not know any children who sit on the street, they manage that on their own and then they are adults too. Holding an apartment in reserve is actually foreign to me. Of course, everyone should live their own plan and I know countless life concepts that I myself would not like but nevertheless work well. I understand that. It is only that this house would never be as it should be at any time, because too much is supposed to be reflected in it. The line between compromise and misplanning is dangerously narrow there.
No building obligation whatsoever and the property won’t be sold anyway,
I had to speculate here because you spoke of the necessity to submit a building application by June. That is how it is with incomplete information or only hints.
The children and we are significantly younger than you assumed.
I assumed that because you previously at some point spoke of 50/20. Again no concrete information in the entry form. How should one recommend a floor plan without all this knowledge, which you are asking for? There just isn’t THE floor plan, a really good floor plan fits the people living in it and that is exactly the crux.
We live 45 minutes away. Very urban. The property is close to the lake, very beautiful landscape. The contrast could not be greater. We currently go out almost every weekend. Many people in our region do that.
Good, now we know that. If that annoys you, just a short note is enough, then I will also bow out here, because I do not want to spoil your enjoyment of anything, but only to convey hints from a different perspective or also from another generation, which still remain just an opinion.