Demolish the old house - basement remains - build a new house on top?

There are in our region.......and only overpriced houses.

That is the much-cited market, and if everything seems overpriced, you might be underestimating your own expectations compared to reality, so in the realm of, albeit understandable, desires.

I am also afraid of getting an overpriced new build.

Here too, I would like to look at the term "overpriced" from several perspectives; from when on is it overpriced for you or what do you base this assessment on if obviously not on usual market prices? Not that I would like high prices as a buyer, but it is what it is. Always hoping that it will finally be the way I like it or not seem overpriced to me also seems no solution, because that has already led to 6 years of waiting, during which your life continued and house prices have risen significantly.

The location is unique for us.

There are many things you can do and always change about the house, but never the location. Please explain why this location is "unique" here so that one can understand. And if it really is "unique," this could have an impact on the feeling of it being overpriced.

We used to say "snail shell stuff." Let's not kid ourselves: a cellar renovation doesn't come cheap. A "construction" of a cellar on a slab foundation is not easy. Then there are the constraints from the dimensions/statics of the old cellar, all of which cost extra. I haven't even begun to think about energy-related issues. At some point, it becomes a zero-sum game, or with that volume, a few euros more eventually don't matter anymore. Either fill it in or build a completely new cellar. However, the question of the overall size must be asked. Just as I first question the flatly stated 180 sqm if costs need to be saved...

We are planning a new building with a house of about 180m2 of living space. What costs should we currently expect here approximately?

Note: 180sqm are more than enough for parents + four children. If you do not have a large family, it helps to reduce your own expectations to an affordable normal level. Then the houses are not too expensive. Especially with new buildings, 150sqm are easily 100k cheaper.

The property has 1400 m2. You can no longer find it on the internet because we will be buying it ;)

We could now buy a house from 1955 with currently about 100m2 living space.

Nothing came of the purchase of the '66 house in February?

Unfortunately, I have no tip regarding the basement. However, one should perhaps know that constantly overpriced things may only be overpriced for you, but generally considered quite normal average costs.

No, unfortunately, nothing has come of the house from February 1966 so far. We went inside again with an architect and a renovation company. We came to around €550,000 for the extension and complete renovation. We were advised to demolish the house and build a new one. However, the house (€515,000) was simply too expensive for us for that. Over the past few years, we have always ended up spending over €1 million on the purchase and renovation. Nevertheless, always with compromises and never the way we would have built new. This property could now be under €1 million for the first time (house purchase + demolition + new construction). Of course, I am also aware that it costs more in big cities. We live rurally; the infrastructure is quite good. We were both born here and therefore definitely want to stay here.

No, unfortunately nothing has come from the February house from 1966 so far.

And not from the one from 1986 either. When I read the old posts, I read: new double garage, dressing room, children’s bathroom.. Surely then a pantry has to go on the ground floor, a room that is supposed to serve for old age, a shower bathroom on the ground floor.. Overall quite a high bar. Anyone who renovates an old house usually doesn’t try to squeeze in their new build wishes there, but rather uses what the house offers, then accepts compromises by having to do without one thing or another. I assume that the price of a nearly new house, where you wouldn’t have to renovate much, scares you off, but you would spend more if you had to renovate an older, but cheaper house, because then you have free rein to build in everything your heart desires?!