ᐅ Solid Construction or Prefabricated House

jx7 schrieb:
Solid construction or timber frame prefabricated house?

Both are proven concepts. One in six houses in Germany is a prefabricated timber frame house. Many prejudices against prefabricated houses date back to the 1970s and 1980s when the prefab companies were not yet as well established. Today, timber houses can be designed just as individually as solid construction houses.

Here are some advantages and disadvantages of timber houses:
+ Computer-aided and weather-independent prefabrication of walls in controlled production processes with high quality standards in the factory
+ no drying times for walls (screed also needs drying time)
+ earlier move-in date (e.g., 6 months after building permit/planning permission instead of 9 months)
+ better thermal insulation and lower heating costs (e.g., easily meeting KfW-55 standard)
+ possibly lower price
- possibly lower resale value (Is this still true today?)
- worse impact sound insulation because the wooden ceiling is not as heavy as a concrete slab
- limited interest from many prefab companies in taking over tasks like earthworks, basement construction, wall and floor coverings, landscaping, etc.

Two more potential disadvantages:
Correct me if I’m wrong: Compared to a solid architect-designed house, a prefabricated house can only be planned and built with limited individualization. For example, one might design a single-level basement with a garage entrance and residential floors above. In my opinion, this is not usually offered with prefab houses because it cannot easily be produced in the factory. However, shifting walls, etc., is possible to some extent.

The second disadvantage is that prefab houses cannot be built on certain plots of land or only with restrictions.
We have, for example, a plot with a slope. Our house was built so that the rear wall is embedded in the slope. Our living room is on the upper floor (full story), and through a terrace door, we can access and use the rear part of our land.
Our neighbors built a prefab house. They had to excavate the entire rear area, construct retaining walls, and then restore the excavated soil (topsoil, etc.).

Of course, this can also happen with solid houses that are “off the shelf” or where the architect hasn’t considered these factors—as has also happened to neighbors.

jx7 schrieb:

In short, we have no reservations against either option and find the debates that often take place online somewhat exaggerated. (Comparable debates really only exist anymore about parenting topics...)

There is still one “debate topic” in housebuilding: ventilation 😉.

f-pNo schrieb:
Two more potential disadvantages:
Correct me if I’m wrong: Compared to a solid masonry architect-designed house, a prefabricated house is only customizable to a limited extent. For example, planning a single-story basement with a garage entrance and living floors above is, in my opinion, not offered in prefabricated houses because it cannot easily be manufactured in the factory.[..]

I have to correct you – it always depends on the construction company what is possible and what is not. Whether it’s a prefabricated house or fully masonry construction plays only a minor role.
What matters more is whether an architect is involved who merely approves building permit drawings or one who actually designs and engages with the respective concepts.
For example, in our case (a prefabricated house on a masonry basement), nothing comes from the manufacturer’s standard design catalog – the manufacturer doesn’t even have a standard catalog. The entire project was planned by an architect from a neighboring town, tailored to the plot... Other buildings by this construction company sometimes have quite interesting hybrid structures (such as a concrete wall inside the house to realize a special staircase design).
Whether the walls, ceilings, and roof are fully assembled in the factory and then put together onsite (Lego for adults – there are even masonry versions) or whether they are built directly onsite (there are also timber versions – the intermediate state then looks more like a domino game – done by another company here locally) is ultimately a matter of execution.

@Irgendwoabaier

Thank you – I’ve learned something new again.
Since we wanted a solid building (masonry house) from the start, we only briefly looked into prefabricated houses.