ᐅ Is it practical to build a prefabricated house using a solid construction floor plan?

Created on: 23 Sep 2024 22:50
S
Skya2020
Hello everyone,

We have just purchased a plot of land in NRW. The previous owners had already hired an architect to fully oversee the construction using traditional masonry methods and have already paid over €50,000 (about $54,000) for phases 1-6. There is already a building permit / planning permission, so construction could start almost immediately.
However, we are planning to build using prefabricated construction and are now wondering how to proceed best. The previous owners have offered to sell us their plans. Either way, we would still need to modify them (aside from the exterior dimensions) to fit our requirements.
The plot is on a slope, and there aren’t many options for building on it, so the design would likely be very similar either way.
Does it make sense to buy the plans from the previous owners and then work with the architect to incorporate changes before approaching prefab house manufacturers? Or are the floor plans not very useful due to the different construction method, making it more reasonable to hire a different architect for a new design?
And if you were to buy the plans—how much would you pay (they don’t really have a strong bargaining position)?

We are completely at the beginning of our home-building journey, so I apologize if this is a naïve question... We just don’t really know the best way to start.
S
Skya2020
26 Sep 2024 12:14
These are the heights on the house facade
Siteplan: two gray building areas; plots 1142, 1601, 1602; planned.

Location plan: gray building areas, planned marked rectangular area, orange markings.
H
hanghaus2023
26 Sep 2024 12:52
OK, I understand. The lowest point is, as expected, the street in the northwest. Thus, the opposite side is the highest.
H
hanghaus2023
26 Sep 2024 15:40
I have roughly marked the contour lines.


Site plan of a plot with dimensions and planned building areas
S
Skya2020
27 Sep 2024 21:49
hanghaus2023 schrieb:

I roughly marked the contour lines.

Cool, thanks. Definitely a significant slope…
H
hanghaus2023
28 Sep 2024 15:24
Skya2020 schrieb:

Cool, thanks. Definitely a proper slope…
Yes, 9 m (29.5 ft) from SE to NW.

What is located at your upper neighbor's plot on your southern boundary to the west (at the street)?
S
Skya2020
28 Sep 2024 19:58
hanghaus2023 schrieb:

What is located at your southern boundary to the west (at the street) of the upper neighbor's property?

That is a large electrical cabinet. But it doesn’t affect us, does it? Or could something like that possibly be a reason to prevent building a garage on the boundary?