Real estate offer evaluation

Let's take €170k for the land, as you wrote yourself. Then add 162 sqm of living space. That makes about €2,200-2,400 per sqm in the mentioned quality = €356k-389k. Let's also add additional construction costs of €50k and exterior work of €35k. You end up with a new build at €611k to €644k. And that's without the stress of the construction phase, possible cost increases, building defects, etc. The price for the house is totally okay.

I'll put it this way: This is no longer realistic with the equipment described in the original post. Alone KNX for 165 sqm drives the sqm price up by about €300 (50,000€/165sqm=303€/sqm). So if you start building today, you'll certainly end up with no less than €2,500/sqm. 2,500€/sqm * 165 sqm = €412,500 Additional construction costs = €50,000 Land = €170,000 GNK (8.5% in SH) = €14,450 Kitchen = €15,000 (with this house size, it won't be a small kitchen) Exterior (paving, carport, fence, lawn, terrace) = €20,000 TOTAL = €681,950 Roughly MINIMUM (!) you will end up here to build the described house. It seems to have already been removed from the portals, so I couldn't find it anymore. Otherwise, it would have helped for an assessment. If you now say the asked price for the house should be €600,000, you end up with purchase additional costs at €651,000. So relatively clearly BELOW what you pay for an identical new build. Plus the not to be underestimated comfort of moving in immediately and no construction stress/uncertainty during the construction phase. Summary: is basically right. I just see it even more extremely than he does.

??? I say, you build for an average of €630k (+ notary etc.) and you for €600k. No, you won’t get the same house newly built for €600k.

Um... I think you have been doing this for 20 years? Construction: average €630k + property transfer tax and notary on the land (around €15k for a €170k plot) = €645k Purchase: €600k + property transfer tax and notary (€51k) = €651k Result: You can also build yourself for that price, you say yourself.

Justified, if they are paid. And that fits very well here. If the price doesn’t suit you, then that’s okay. But big price negotiations are currently not possible. At most in the direction of who will pay more!

Exactly, everything that is paid is justified – I absolutely agree with you there. Nobody has paid the €600k yet – and certainly not the originally asked €635k, which you obviously would have just paid in my situation. If the original price had been stated in my initial post, your text would be unchanged – no negotiation is really possible at the moment anyway :)

I have been active in the real estate and real estate financing business for over 20 years – as financier, investor, landlord, and owner-occupier. Hence my assessment. You have little experience and ask. Then you get answers from those who have a lot of experience.

Exactly, that’s the experience I want to use, and therefore the gist of your posts helps me: You consider the price to be fair. Thanks for the assessment! I actually have – as mentioned multiple times – little experience in real estate matters. I also see it not at all as an investment or anything like that, because personally I don’t think much of that – I can multiply my money better (please don’t discuss, just my opinion)... but I do know that I probably wouldn’t grow old in this house and therefore it surely doesn’t hurt to pay as little as possible. Of course, this tactic can also lead to missing out on an opportunity – but that comes with it – I don’t buy at any price, and with that I have done very well so far.

I'll put it this way: That is no longer realistic with the equipment described in the first post. KNX alone for 165 sqm raises the price per sqm by about €300 (50,000€/165sqm=303€/sqm).

The additional cost for KNX in this installation (lighting and shutters) is certainly not €50,000. But never mind... I’m slowly beginning to understand that roughly €600k fits - that’s what it was about for me. If I decide to buy the house at that price, I simply feel more comfortable now - thanks. It also could have happened that a few people here would come and say, "Are you crazy? Maximum €500,000" - I didn’t want more than that anyway. The price is within a realistic range. Thanks.

The additional effort for KNX in this installation (lighting and shutters) is certainly not 50,000 euros

Are the lights dimmable? Are there switchable sockets? Is the KNX linked to a weather sensor (e.g. to control the shutters)? Are the shutters perhaps even venetian blinds? Is there a visualization server to control the house via app? Are there possibly RGB lights controlled via KNX? If it’s really just ON/OFF or UP/DOWN, then maybe 20,000€ for the KNX is enough, but then why do it? Overall, I don’t think you’ll get it cheaper if you build it yourself. Roughly estimated, I would say about +/- 100,000€ more (because the outdoor facilities are often underestimated). The lifetime spent on the construction site is not negligible either. But then the new building has exactly YOUR floor plan, YOUR floors, etc. Can an existing wall be moved? Otherwise, the existing house would be a no-go anyway.

I believe that KNX is really quite rudimentary... there is at least no Visu Server, no venetian blinds, no RGB, no weather sensor.

The wall should be movable... it's just effort and cost: It is aerated concrete, non-load-bearing... which of course leads to a problem especially with the tiled floor – that will probably have to be redone.

I think it is absolutely right to put something like that on the table and not just present any offer price here as given and question whether you are paying too much in the end when it is only for a short time period. Good and sensible question!

600,000 euros for a house as an interim goal is, in my opinion, a costly lump risk, especially since you still have to invest, which no one will pay you back in the end.... apart from the fact that with that money you can already build nicely, in my opinion. Not to mention additional costs like notary, property transfer tax, etc... those are significant amounts!
Some prices called out here are already utopian. 50k for a KNX installation is madness. The wiring is simpler than with conventional electricity; the material cost me about 5k euros more in extra expense compared to a classic installation.....
How about an apartment ownership or renting until you can build your target property?