Single-family house with a granny flat

Plan with 2,000 euros per sqm + ancillary construction costs + exterior facilities + demolition + buffer

You have not listed many costs in the construction service description. Some services are still according to the 1985 standard, e.g. electrical work. Tiles are included, often in small formats and in the lower price segment. It’s best to go through the sample exhibition and see what is available for the price.

At Town & Country, the price per sqm would be considerably lower than the mentioned 1800 euros/sqm; that's why we hoped the value was somewhat realistic.

Two things are somewhat realistic above all:
1. What builders report who have built within the last year, as far as their region's price level is comparable and these people show a similar attitude towards which features should be valued how much;
2. That significant undercuts of the prices experienced are fudged through items excluded as "builder's scope" from the specification – the amount of value in foregoing gold-plated faucets is overestimated.

Yes, that sounds comprehensible. We'll try to get some other offers. If the price per square meter is still above 2000 euros/sqm, the new construction project becomes significantly less attractive to me, since the plan was already more out of necessity (no suitable used property could be found and we were advised against a core renovation of the existing house for economic reasons).

If the price per sqm is still over 2000 euros/sqm, the new build project becomes significantly less attractive to me,

One must urgently advise against the homeownership adventure to people for whom the calculation only barely works out even with the utmost effort – this applies all the more to cases where one must hope for unexpected price drops around the corner. Things simply have their prices, and these have never fallen when demand is high. You can save on "rechteckigpraktischgut" without corner windows, if the car doesn’t get its own room, generally by giving up on fancy stuff.

not finding a suitable used property and being advised against a core renovation of the existing house for economic reasons

The strategy of looking for used properties is fundamentally not wrong. Most searchers make the mistake of searching incorrectly. If they found nothing, they would notice it themselves. Instead, they often find lots of properties that unfortunately are junk or too expensive. I know it sounds like easy smart talk, but: you have to buy actively. That means: hands off things that someone just wants to get rid of. Realtors are often hired when a property was voluntarily not marketable (which has reasons that cannot be fixed by just hiring a realtor). Likewise, one should keep distance from "well-maintained" properties: in plain language, this usually means the seller thinks hopelessly outdated material is still worth half the new price just because it is not scratched – the result is incompatible price expectations. Conversely, you can make great bargains if the seller is aware of their property’s outdated condition and you don’t mind having moss-green or Bahama beige sinks. Or even better: a bolt staircase – in ten years these things will be absolutely hot again. Heir communities are also very bad because there is almost certainly someone crazy who hasn’t understood the market price. Attractive properties can be found through divorce lawyers – where else Barthel squeezes the juice, I have among other things vented here:

I come from Ostercappeln. We will end up at €1850 per m² with our construction company for turnkey projects. So the estimates are realistic. We are building with Schmieshaus from Rieste. Otherwise, Schrandt Planen und Bauen is also very popular here. But the construction service description with Schmieshaus is somewhat better... Are you planning to provide your own work?

Are you already building?