Is prefabricated house construction with a solid house floor plan sensible?

But I have been working in special machine construction for 15 years and that's how it is... [...] Because we, surprise, do mixed calculations. We sell the basic functions cheaply, optional catalog items more expensively... special bells and whistles become really expensive because we charge according to hourly rate and effort. [...] That's how they calculate. And the architect knows that... And so does the 11ant...

I want to provide my readers here and elsewhere with clear information and not habilitate them to be bachelors of construction calculation. Therefore, as long as it is always emphasized that this is an average and cross-sectional value, I find the nominal flat rate of 3k per sqm more suitable than explaining to the questioners that a formula with seven dimensions plus hooks and eyes would be more precise. Incidentally, building a single-family home is also special machine construction, albeit with larger tolerances due to materials and manufacturing technology. And the flank steepness between basic functions, common options, and individual special bells and whistles varies greatly, generally speaking it is most pronounced with cheap builders. I am familiar with the same from ITC: standard user interfaces scale linearly with quantities and are highly discountable, while on the other hand there are engineer harassment surcharges bordering on usury. And solutions become twice as expensive in one fell swoop when they are disparaged as solutions. The Siemens air hook has daily gold prices.

Has the building application already been submitted by the previous owner? The architect should also have the survey plan. The previous owner can request it from him.

Do you possibly have photos of the property so that one can better imagine the slope?

Have you already looked up the property in the geoportal?

No, it doesn't.
Because the 3,000 EUR/m² is a mixed calculation, from expensive rooms and cheap rooms.

If the contractor creates a correct calculation, then something different can come out.

I’ll put it this way. If you build 30 m² more living space, it costs at least 3k per m². If, on the other hand, you want to build 30 m² less, I agree with you. Then it’s only 1k per m².

I have been working in construction calculation and claims management for 30 years. I can tell you exactly how it works.

An architect, on the other hand, used to calculate with m³ of enclosed space. Today, with m² of living space or floor area.

In the offer phase, small construction companies today still calculate based on last year’s experience values from the m² costs.

But enough off-topic now.

Has the building application already been submitted by the previous owner? The architect should also have the survey plan. The previous owner can request it from him.

Do you possibly have photos of the property so that one can better visualize the slope?

Have you already looked up the property on the Geoportal?

Yes, there is a building permit. But as I said, the previous owners are happy to sell us their plans. The soil report and the permit were already provided to us during the purchase process. I would now have to pay for the other documents.

Unfortunately, I can’t manage with the Geoportal. This is the only thing I was able to come up with, maybe it helps with the imagination.

Thank you.

Who owns the property 744?

In the Bayernatlas, you can measure lengths with a measuring tool and then the system also shows the elevation profile.

That works in your [Eurem] as well. First then then then trace the respective borders. Then take a screenshot.