Prefabricated house: first architectural planning and then selection of prefab house provider, or the other way around?

One might perhaps reduce the width a bit, but does it make that much of a difference? As a layperson, I find the design quite nice.

Why a prefabricated house? We currently live about 110 km away from the building site and hope for fewer on-site inspection appointments as a result.

" At Weberhaus we can stay within a building series, which theoretically improves the price, but is that really the case? "

I will try to explain it more thoroughly again:
--> Our floor plan above is based on a WeberHaus building series (Balance 300). This means the exterior wall and stair position are predetermined. However, the rest is flexible and has been adapted by us accordingly. We hope to be cheaper because we are building within the series instead of choosing a custom-designed house. However, we do not know if it is actually cheaper.

And then: the Balance 300 is a townhouse that is neither desired in this residential area, nor can the floor plan be transferred to an allowed house.

And then: the Balance 300 is an urban villa that is not desired in this residential area, nor can the floor plan be transferred to a permitted house.

Why are you so sure that an urban villa is not desired?

The development plan states right at the beginning the maximum height of your house, namely 6.60 for two-story buildings.
And further back, the roof pitch is differentiated for one- or two-story buildings.

And here we come to your question, since your currently favored house is not feasible according to the development plan:
Definitely go to an architect who has to calculate your house in order to get the best out of the specifications.

First of all, I will write more about the actual post later:
We apparently have a similar development plan. The thread starter wrote about 6.6m eaves side. That works for two stories if the development plan actually means the eaves side there.

(Our specification is 6m eaves side, gable roof up to max. 30°. Even with the obligation to have full stories. By reducing the clear room height to 250cm, we were just able to comply with the 6m eaves side.)

PS: Our house will not win any beauty contests. But neither will any house there in that area.

I agree with the rest.

The development plan specifies the maximum eaves height, not the total height of the house, as 6.60.

Oh, indeed. :o I can also make mistakes, and it’s better if I make them than the expert advisor on site.

that sellers are not infallible

No one is infallible, and it’s good if the seller also deals with the development plan – that’s not always common practice.

Seller at Weberhaus saw no problems and studied our development plan thoroughly

Why are you so sure that a city villa is not desired?

Because of the roof pitch. As already said: a roof of 33 degrees is a traditional roof under which living space is also created. City villas usually look quite modest if you put a hat on them with more than 25 degrees. However, it would be feasible in terms of the eaves height. Sorry again if I have caused any confusion. Maybe one should read the passage about hipped roofs again.