ᐅ Building an extremely narrow house with a width of 4.5 meters due to setback requirements

Hello everyone,
I currently have a plot reserved where you can build up to 4.5m (15 feet) wide and up to 14m (46 feet) long, with two stories. Do you have any experience building on such a narrow lot? Are there house builders that offer homes with such a narrow footprint? A custom architect-designed house would probably be very expensive. If you have experience, feel free to share your floor plans as well.
Thanks in advance!

Welcome to the forum,
please show the plot of land and tell us the name of the zoning plan or development plan, what it states, and what is actually allowed.

4.5m (15 feet) without walls is just over 3.5m (11.5 feet) inside ==> better keep looking.

Then you know the municipality,
place a classified ad in the community newsletter every two weeks for a quarter of a year,
your sellers don’t have internet or real estate platforms, they are over 80 years old.

You really have to want to build a house like this. An exterior wall is about 40cm (16 inches) thick, so inside you’re left with roughly 3.7 x 13.2 m (12 x 43 feet). Houses like this do exist, but you absolutely have to accept compromises. You won’t find anything like this in a catalog; it only works with an architect—specifically one who has completed similar projects before. Any company can handle the construction, but with such limited space, I would recommend using the thinnest possible wall construction.

With such tight dimensions, in my opinion, it’s almost impossible to avoid having a basement, since above ground you only have two floors with very limited space, and you certainly don’t want to waste that room on a utility area. So, the project definitely won’t be cheap. In my view, it only pays off if you have a literal building gap in a market with land prices well above 1000€/m² (about $100/sq ft).

PS: If you search for it online, you’ll find a narrow house from Schwörerhaus. However, they are over a meter (about 3 feet) wider, which makes a significant difference here.

In our village, there is a very old house with an estimated width. Many connecting rooms.

I think it depends on what you want. A couple who loves open spaces will probably manage better than a family.

I would avoid it or at least have an architect involved.