ᐅ Enlarge and completely renovate a single-family home, or demolish and rebuild?

Created on: 19 Dec 2021 18:54
Z
zizou89
Hello everyone,

Here is the situation:

We have the opportunity to buy a plot of land (600 sqm (approximately 6458 sqft)) with a house from the 1960s that offers 105 sqm (approximately 1130 sqft) of living space over two floors for 150,000 €. The value of the land alone (land reference value) is 130,000 €.

For us, however, the house is too small. We would like to undertake the following measures (the development plan allows all of these):

1. Extend the house by 3 meters (about 10 feet) to the rear and 3 meters (about 10 feet) to the side.

2. Add extra floors.

3. Install a new roof.

4. Replace the exterior facade.

5. Complete interior refurbishment.

In other words: we basically want to redo everything.

Would this be financially worthwhile, or would demolition and rebuilding make more sense? Are there any tips regarding funding options (KfW programs) or similar?

Please excuse me, as I am (still) a complete beginner. I understand that it is impossible to predict costs here, but maybe there are people who have undertaken a similar project 🙂

I would appreciate any information.
11ant26 Dec 2021 12:28
seref89 schrieb:

Attached in better quality. We are no longer creating an air gap!

Great, now just the cross-section, and then the ceiling plans 🙂
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Z
zizou89
26 Dec 2021 12:33
11ant schrieb:

Great, now just the section drawing, and then the ceiling plans 🙂

Attached is the section drawing. There are no ceiling plans 😀

Cross-section of a multi-story house with roof truss, stairs, and dimension lines.
11ant26 Dec 2021 13:28
seref89 schrieb:

Attached is the section.
Fine, but it’s still Sunday and I want to go hiking.
seref89 schrieb:

There are no ceiling plans.
There should be some in the building file. Knowing the ceiling panels is very insightful.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Z
zizou89
26 Dec 2021 13:32
11ant schrieb:

Fine, but it’s still Sunday and I want to go hiking.

There should be some in the building file. Knowing the ceiling panels is very insightful.

I really have nothing left. Dug up everything I could 😉 I wish you lots and lots of fun and a Merry Christmas!!!
11ant26 Dec 2021 13:38
seref89 schrieb:

I really have nothing left. Everything that could be dug up has been found.
I didn’t mean the building file in the sense of grandpa’s folder for the house construction, but the box in the municipal archive with the original building permit / planning permission documents from back then. We can discuss without it as a workaround, but then it becomes quite speculative, and the structural engineer doesn’t work with a crystal ball…
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
T
Tassimat
27 Dec 2021 09:45
11ant schrieb:

I generally see good chances, although the floor plans all three would be

But what do you think about the walls on the ground floor, which are all supposed to be removed?
My immediate concern would be that these walls might be supporting the ceiling elements (which is probably why you asked about the ceiling panels), or that the walls might provide structural bracing, even if they are not load-bearing.