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

Created on: 23 Sep 2024 22:50
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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.
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hanghaus2023
24 Sep 2024 18:08
In my opinion, this is not very practical. What advantage is a prefabricated house supposed to offer?

Are there no competitors?

If it is the dream plot, then buy it immediately.

Is there a soil report?

In which region is building not allowed?
K a t j a24 Sep 2024 18:14
I think it’s complete nonsense to pay even 1 cent for the plans. Out of curiosity, I might offer 100 euros. But for you, the plans are irrelevant. You’re building your house according to your own wishes and needs. Whatever the previous owners once dreamed of, they can pin that up on the wall. But asking for money for that is a joke.
11ant24 Sep 2024 18:35
K a t j a schrieb:

I think it’s complete nonsense to pay even 1 cent for the plans. Purely out of curiosity, I might offer about 100 euros. But the plans are irrelevant to you. You are building your house according to your own wishes and needs.

For curiosity, 10,000 cents (100 dollars) is probably still too much, but the relevance here is apparently higher.
K a t j a schrieb:

What the previous owners once dreamed up, they can pin to the wall. But asking money for it is a joke.

As an offer, I think it’s okay; as a purchase condition, I would not agree.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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hanghaus2023
24 Sep 2024 18:37
Skya2020 schrieb:

In 2022, the architect estimated the total costs at about 1.4 million (including the land). However, he also mentioned that the specifications were very luxurious. So, we hope to achieve a somewhat lower cost. The house has approximately 100 sqm (1,076 sq ft) per floor and a double garage in the basement.
But you would only pay the 33% fee if you mostly adopt the plans (including the construction method)?
If I still have to commission my own design plan afterwards anyway, it would actually be paying extra.

How large is the land portion?

Construction costs should be approximately 1 million proportionally.
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Skya2020
24 Sep 2024 18:55
hanghaus2023 schrieb:

How much of the total is the land portion?

Construction costs should be around 1 million proportionally.
Yes, that sounds about right. The land is slightly over 400,000 euros including additional costs.
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Skya2020
24 Sep 2024 18:58
hanghaus2023 schrieb:

In my opinion, that is not very practical. What advantage is supposed to come from a prefab house?

Are there no other competitors?

If it’s the dream plot, then you should secure it immediately.

Is there a soil report?

In which region is building not allowed?

No advantage. More of a personal preference. No well-founded reasons. We simply haven’t delved deeply enough into the subject yet.

We have already signed the notary contract. There is a soil report, and we have a copy.

Cologne metropolitan area