Cost of prefabricated house: Solid construction vs wood?

We will definitely take a closer look at the topic again and obtain further offers.

You could first give the helpers a more intensive insight into your needs and wishes, instead of letting the potential lie fallow, as there are many experts here. And also feel free to reveal who this mysterious Weisser is.

It’s best to show the plans with which the offers were obtained – then several regular users here can already give tips as to which providers would be closest for that.

Obtaining further offers is rather not connected with gaining insights before the forum's potentials have been utilized.

Hello,

it concerns:
Fertighaus WEISS GmbH
Sturzbergstraße 40–42
74420 Oberrot-Scheuerhalden

I could have sworn it was Weiss :rolleyes:.

Our requirement is for a 180 sqm house on 2 floors, plus a basement (white tank) since the plot slopes about 3m from the street.
The plot is 18m wide and about 29m long. The development plan provides for a gable roof with a pitch of 30-45 degrees with an eaves height of 7m and a ridge height of 11m, unfortunately measured from the lowest building point (meaning the basement is included).
The upper floor should include 2 children's rooms, a children's bathroom (shower), a master bedroom with a walk-in closet, and a master bathroom. I know, that will be tight.
The utility room and office should be in the basement. My wife wishes for a gallery above the living room and a single garage accessible from the house.
The plot is bordered at the back by a river and fields, so we want to work with large glass windows at the rear living area.
Otherwise, we are relatively flexible regarding the material implementation, and are not particularly informed yet.
It does not have to be KFW 40 plus; the overall budget for the house excluding ancillary costs is around TEUR 600.

Best regards

KPP

It does not have to be a KFW 40 plus, what is more important is the total budget, which for the house excluding ancillary costs is around TEUR 600.

Then you better come to terms with the idea that it won't work. 180sqm almost barely makes it today without a basement, with the living basement in a white tank you will almost certainly be over budget and then add a garage...

The development plan provides for a gable roof with a 30-45 degree pitch and an eaves height of 7 m or a ridge height of 11 m, unfortunately measured from the lowest building point (meaning the basement is included).

I have never read this before, tell me (careful, no link!) where the development plan can be found ("Kleinkrotzenburg Nr. 123 Am Blocksberg").

Our requirement is for a 180 sqm house on 2 floors, plus a basement (white tank) because the plot slopes about 3 m downward from the street. [...] It does not have to be KFW 40 plus, the overall budget is more important, which is about TEUR 600 for the house excluding additional costs.

Then the gap between desired size and budget still needs to be closed. How is your slope description to be understood: flat up to 3 m beyond the street boundary line, then (how steeply) sloping? (what is especially important is how the elevation change is beneath the house footprint). With any significant slope, all providers risk simply propping a flat-plot design up on a basement like on a jack, without utilizing the slope. This regularly causes excess surface area. Unfortunately, you have not yet shown which design you requested.

Otherwise we are relatively flexible regarding the material implementation, or rather, we are not particularly informed yet.

My impression honestly was/is rather that the lack of information has been heavily overcompensated by incorrect assumptions. That is where the best joint work can be done. We are happy to help but (since we have been missing ) only have murky crystal balls left. Therefore, there is a causal connection between sparse information and the limited extent of assistance possible.

Then you'd better make peace with the idea that it won't work. 180sqm is almost doable without a basement nowadays, with the living basement in a white tub you will almost certainly go over budget, and then a garage on top of that...

Hello WilderSueden, thanks for your assessment, but as I said, we have received 2 offers for about EUR 560,000. Of course, they are not yet worked out in detail, but I do think that with both providers we can realize something reasonable for EUR 600,000 excluding additional construction costs. If necessary, we'll build the garage later. I see the potential for significant one-time payments, which could then be used for a garage and the outdoor facilities.

I have never read that before, tell me (careful, without link!), where the development plan can be found ("Kleinkrotzenburg Nr. 123 Am Blocksberg").

Then the wish-size-budget gap still needs to be closed. How is your slope description to be understood: flat up to 3m past the street boundary line, then (how steeply) falling? (what is important is especially how the height variation is directly beneath the house footprint). With any significant slope, there is a risk with all providers that they put a flat lot design on top of a basement like on a jack without using the slope. This regularly creates excess surface. Unfortunately, you have not yet shown which design you requested.

My impression was/is frankly rather that the lack of clarification was thoroughly overcompensated by incorrect assumptions. That is where we can best work together. We are happy to help, but (since we have been missing ) only have cloudy crystal balls left. Therefore, there is a power-locking connection between scant information and limited helpfulness.

Hello 11ant, I am now attaching screenshots of the development plan here. The legally binding development plans of the Lautertal municipality can be found in the Bürger GIS of the Bergstraße district. The address is Nibelungenstrasse 133 in Elmshausen.

I think the issue with determining the ridge and eave height is that the basement would be freestanding towards the back due to the slope and therefore counts. Attached are 2 pictures of the plot so you can assess the slope. We would like to build at street level like the neighbors on the right, who chose the variant of a basement with a white bathtub and a timber-frame house and then had problems because of the 7m eave height and had to adjust their plans.
We have already spoken to a civil engineer and excavator, and he estimated the effort for connection costs, basement excavation, and filling up to street level and driveway paving comparable to the neighbors at about €100,000. For that, however, we would also get the plot at a fair price.

We are currently in the final negotiations for the plot purchase, and all we have really done so far is try to understand what it means financially to implement something according to our ideas on this plot.

Thank you and best regards

KPP