Buying land for a house, please advise!

Hello,

I’m not quite following. What is an energy saving ordinance house? As far as I know, the energy saving ordinance applies to every house, whether KFW or not.

You don’t "need" the energy saving ordinance; it is a mandatory standard; it primarily sets the requirements for primary energy demand and has developed a benchmark for this – KfW Efficiency House 100. A KfW 70 efficiency house is also bound by the energy saving ordinance but additionally may only consume 70% of the energy, a KfW 55 efficiency house only 55%, and so on down to the true passive house.

And yes, the base slab needs to be somewhat better for KFW – it even says so as a note at Danwood, I believe. But KFW 70 should not be a problem for any wooden houses.

These are general advertising statements. That’s why the advertisement says "eligible for funding" eligible, which does not necessarily mean it is actually funded.

Rhenish regards

Hello,
You do not "need" the Energy Saving Ordinance, the Energy Saving Ordinance is a mandatory standard; it primarily sets the requirements for the primary energy demand and has designed a benchmark for this - KfW Efficiency House 100. A KfW 70 efficiency house is also bound to the Energy Saving Ordinance, but additionally may only consume 70% of the energy, a KfW 55 efficiency house only 55%, and so on down to the real passive house.

Thank you very much for the instructions. I was already clear on what the Energy Saving Ordinance is. Further comments are not necessary. The only thing that was not previously in my vocabulary was "Energy Saving Ordinance House." So that meant the minimum of the energy ordinance. That is clear now.

These are general advertising claims. That is why the advertisement says "eligible for funding," which by no means means that it is actually funded.
Rhenish greetings

A house builder should be smart enough to
1. of course include a funding like KfW70 as a condition in the house building contract and
2. the "eligibility" naturally diminishes if I let the cold back into my house through poor construction or bizarre ideas.

In my experience, timber frame houses more easily achieve the specified U-values and also the KFW standards. Solid houses have to put in more effort and then quickly become very expensive.

In my experience, timber frame houses more easily achieve the specified U-values and also the KFW standards. Solid houses have to put in more effort and quickly become very expensive.

According to your "experience," or what you have learned from advertising claims?

I only know the statement that in timber frame construction the wall structure does not need to be as thick as with stone to achieve the same U-values. Whether that is true and whether it actually makes a difference in price remains open.

According to your "experience," or what you have learned from advertising claims?

I didn't buy all the houses, in case that's what you mean.

During the consultation meetings, the wall construction was explained to us. Of course, each provider presented their own wall. Usually, they have 2-3 variants that differ exactly according to the KFW levels (KFW70, KFW55, etc.). With these and appropriate planning, the manufacturers guarantee compliance with the standard.

So unless I am buying my house from an unknown provider in Romania, the companies must comply with the contractually guaranteed standard. And with wooden houses, it was always easier to meet the KFW requirements with all the providers we asked (we had 4 solid house builders and I have 5 wooden house providers). Anyone with different experiences is welcome to present them here.

I didn't buy all the houses, in case that's what you mean.

During the consultation talks, the wall construction was explained to us. Of course, each supplier presented their own wall. Usually, they have 2-3 variants that differ exactly according to the KFW levels (KFW70, KFW55, etc.). With these and proper planning, the manufacturers guarantee compliance with the standard.

So, unless I buy my house from the unknown house supplier from Romania, the companies must meet the contractually guaranteed standard. And with wooden houses, it was always easier to meet the KFW requirements with all the suppliers we asked (we had 4 solid house builders and I had 5 wooden house suppliers). Anyone who has different experiences can feel free to share them here.

What did they or you understand by "easier"? In my opinion, our brick wall construction with ETICS looks simpler than a timber frame structure.

What did they or you understand by "simpler"? Our masonry wall structure with ETICS looks easier to me than a timber frame

Ok, that was poorly expressed. Better: the wooden houses reach the KFW standards faster with the given wall thickness. It was only easier for us because we didn’t have to think.