1, 1.5 or 2 stories?

Hello,

we are currently in the first planning phase and now the first problem arises. What is the price difference between 1 1/2 floors and 2 floors? Basically, it is about the fact that we have already found a house that would suit us somewhat. It is a solid house and has a basement + ground floor + attic (140sqm living space). The price would be around 200,000 Eur. If the price difference to a full first floor (+ flatter roof) is not too big, we would like to build two stories. (permission-wise this is possible)
Can one roughly say what it would cost more???

oh yes, I am glad to have found this forum and will certainly bother you with many other questions

Thanks in advance, Andi

Hello Andi,

...Basically, it is about the fact that we have already found a house that would suit us reasonably well. It is a solid house and has a basement + ground floor + attic (140sqm living space). The price would be around 200,000 Eur. If the price difference to a full first floor (+ shallower roof) is not too big, we would like to build two-story. (this is possible in terms of approval)
Can you roughly say what it would cost more???

Aside from the fact that, according to building law, there are only one or two stories (know-it-all mode) ...

this question cannot easily be answered, as among other things the information about the knee wall/saltbox wall is missing. The mentioned price for the single-story building with 50-80 cm knee wall seems realistic to me - are you sure you are really allowed to build two stories, or is only the theoretical two-story meant?

Please have your provider submit an offer tailored to the possibilities of the development plan and then ask again here; sometimes raising the knee wall helps enormously and this usually does not cost a fortune compared to the total volume.

Kind regards

First of all, thank you for the quick response.

The knee wall height is 50cm. Yes, a two-story building is definitely possible and permitted.

Regards, Andi

Knee wall height of 50cm is, in my opinion, nothing!

The additional costs depend on:
- which wall construction
- perimeter measurement of the house
- what equipment the roof should have before and, of course, its angle

Basically, there are many, many more

Roughly speaking, I would say 20%