New construction - How to build economically sensibly?

And anyone who wants to make all sorts of compromises should simply consider what they are doing it for.

That is exactly what I want to find out, where I can make compromises and where rather not. Why do I want to build? That would lead to a further discussion. It's only about putting the money in the right place.

However, he does not ask about what is under plaster and screed. Instead, he asks about kfw levels and building services. Unfortunately, you can tell from some forum users that they live in regions of Germany where only the top 10 thousand can afford to build, due to the prices. It is somewhat more expensive, but you are among your own... The sense that ownership, even in more modest form, gives satisfaction and that these are achievable goals for average earners in other parts of the country is not present. This is how a half-hearted neverever comes about...Karsten

Afterwards, he doesn’t ask about what is under the plaster and screed. Rather, he asks about kfw levels and building services.

Sometimes I do wonder if you want to make a fool of someone. Where is that supposed to go? Right in the middle of the living room on the carpet? You have to be clear about what you want, weigh the pros and cons of different technologies. You should also keep an eye on the government’s plans. The gas heating system may seem cheap today. However, the plan is that gas heating systems will no longer be installed from 2030 onwards. There are price-sensitive users like , I don’t want to be mean now, but just before retirement the priorities might be a bit different. From you, we don’t know anything. Age, family, etc. These are all factors that should be considered. How long will I be paying off the house. Maybe with, for example, a 30-year term, can I still afford a gimmick for 5 or 10k? Not because it pays off, but simply because it’s great?!

To answer your initial question concretely, you would need to clarify whether you mean purely economic profitability and over what period you want to calculate it.

Over 10 years, things may be economically unprofitable that would calculate differently over 20 years. However, you can’t look too far into the future, or else it all becomes guesswork.

So: purely economic, yes or no? Observation period: 5 years, 10 years, 15 years, 20 years, etc.? Those framework data would be needed.

But if your budget is really fixed where you set it, you only have the option to do it as proposed by [Nordlys]; then the above questions do not arise.

If you should want to know how to live most economically: rent and don’t save your money into a property. Building a house is a luxury, not an economically sensible investment. A matter of the heart, then.

The mentioned cost framework (cost group 300 + 400) will certainly not be sufficient. Even with the most economical equipment, the unavoidable construction costs will rather be at least €250,000, excluding ancillary construction costs, excluding outdoor facilities, excluding public or private development.

What you might be able to build for this or even a reduced cost framework in a specific situation (existing plot) can only be developed individually for you by an architect in a preliminary design (1-3 variants). He can also try, for an additional success fee, to take into account the so-called "cost-effective building" in his design: particularly simple building form, simplest materials, etc. Building particularly simply and cheaply while still meeting all legal requirements is more labor-intensive for the architect than the "normal" construction standard. This always has to be taken into account. He will also not be able to give you a construction cost guarantee that the low cost framework you desire can really be adhered to.

According to experience, construction costs under €1,500/m2 NNF, as you currently desire, are generally not possible in Germany.

"economic / ecological house construction

There is a nice book "Buy or rent?: How to make the right decision for yourself" by Gerd Kommer.

According to it, from an economic perspective, buying/building property is actually almost always a "loss" business.

The house should cost about 200k € and outlive us

I recommend a bunker. No, seriously. No house survives one. Except for the wall, everything usually has to be renewed at least once within the usual lifespan. Roof, insulation, pipes, heating technology. The only thing that really remains is actually the foundation slab and the walls.

By the way, ecological house construction is actually a completely different topic and price category for me. Meaning healthy building materials and the like.

And as for prefabricated houses. They are not cheap. In other words, in reasonable quality they actually blow your budget.