ᐅ Demolition of Old House – Basement Remains – Building a New House on Top?
Created on: 26 Apr 2025 23:33
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Flo1990
Hello community,
I would like to ask for your opinions and experiences once again.
There are no available building plots in our area, and the houses on the market are overpriced.
We could now buy a house from 1955 with about 100 m2 (1,076 sq ft) of living space.
The location is unique for us. The plot is 720 m2 (7,750 sq ft). However, the condition of the house is poor.
If we were to renovate, we would need to add an extension or raise the roof.
Everything else would require a complete gut renovation, as nothing has been done since 1955.
We estimate costs of at least 400,000€.
We would then demolish this house. Does it make sense to keep the basement during demolition? Currently, the basement is about 75 m2 (807 sq ft). The basement also needs a full renovation but is dry. The ground floor of the new building would cover around 110–120 m2 (1,184–1,292 sq ft), while the 35–45 m2 (377–484 sq ft) without a basement would have new floor slabs. Could this save costs?
Is it possible to build a new solid or prefabricated house on the old basement ceiling/floor slab?
For the new construction, we are planning a house with approximately 180 m2 (1,938 sq ft) of living space. What costs should we currently expect for this?
Thanks for all your tips, experiences, and cost estimates.
I would like to ask for your opinions and experiences once again.
There are no available building plots in our area, and the houses on the market are overpriced.
We could now buy a house from 1955 with about 100 m2 (1,076 sq ft) of living space.
The location is unique for us. The plot is 720 m2 (7,750 sq ft). However, the condition of the house is poor.
If we were to renovate, we would need to add an extension or raise the roof.
Everything else would require a complete gut renovation, as nothing has been done since 1955.
We estimate costs of at least 400,000€.
We would then demolish this house. Does it make sense to keep the basement during demolition? Currently, the basement is about 75 m2 (807 sq ft). The basement also needs a full renovation but is dry. The ground floor of the new building would cover around 110–120 m2 (1,184–1,292 sq ft), while the 35–45 m2 (377–484 sq ft) without a basement would have new floor slabs. Could this save costs?
Is it possible to build a new solid or prefabricated house on the old basement ceiling/floor slab?
For the new construction, we are planning a house with approximately 180 m2 (1,938 sq ft) of living space. What costs should we currently expect for this?
Thanks for all your tips, experiences, and cost estimates.
Flo1990 schrieb:
The owner has explicitly forbidden the publication of any pictures.Only photos or also excerpts from the building file (floor plans, sections, facades)? How did you become aware of the property without a public listing?Flo1990 schrieb:
We have been monitoring the real estate market for six years. There are no building plots or new developments, and houses are overpriced. A chance like this with an affordable demolition property has never come up before.This sounds to me like a subjective impression based on two factors:1. Ignoring at least the Barthel tips, instead of buying on, at, or better yet next to the market;
2. Equating asking prices in listings (unless the same offer is repeated at a reduced price) with actual sale prices.
How does the unusual distribution of living areas come about (about 100 sqm (1076 sq ft) total but only 75 sqm (807 sq ft) on the ground floor)?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
This concerns a total living area of 100m2 (1,076 sq ft). On the ground floor, we have a footprint (with a basement) of 75m2 (807 sq ft), so the living area is accordingly smaller.
We learned through acquaintances that the house is for sale. Direct contact. No real estate agent involved and so far no competition.
We have an idea of our house. Also regarding the layout. I believe that if you are going to pay a lot of money monthly for something until retirement, it should meet your own expectations.
We learned through acquaintances that the house is for sale. Direct contact. No real estate agent involved and so far no competition.
We have an idea of our house. Also regarding the layout. I believe that if you are going to pay a lot of money monthly for something until retirement, it should meet your own expectations.
A
Allthewayup27 Apr 2025 22:34Flo1990 schrieb:
Has anyone here already gained experience with this? We have.
What’s important is what the soil survey says about the foundation for the new house and how the existing basement’s foundation is designed. It also gets complicated with the structural engineering. You can strongly assume that the load-bearing walls of the basement will have to be continued vertically in the floors above in the same locations. If you move the walls, you need to plan for substantial reinforcement steel and possibly thicker intermediate floors just to accommodate the steel properly and encase it well in concrete.
Since our basement unfortunately only used strip foundations, the structural engineer quickly dismissed the idea. There had previously been a 1.5-story timber frame house on top, and the foundation was sufficient for that. But two full floors built with solid masonry would have caused significant settlement damage. That’s why everything had to be removed.
The only thing I regret about our basement is not having built it full-height right away, but only 2.25 meters (7 ft 5 in) high.
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nordanney27 Apr 2025 22:41Flo1990 schrieb:
We have an idea of our house.You haven’t had a house for six years. You just have unrealistic expectations. Colloquially: dreams.For example, as a father of three children, I would be very unhappy not to be able to live with my family in a house for such a long time, just because my dreams are too perfect. A few more years like this, and the kids will have moved out, and I’ll have to dream about an accessible bungalow for seniors.
Exaggeratedly expressed.
Flo1990 schrieb:
I think if you are paying a lot of money monthly for something until retirement, it should also match your own preferences.Of course, it is nice when that is the case. However, there is no automatic guarantee or entitlement to this. Many people pay a lot for housing throughout their lives without achieving this goal. So it remains a wish that one may be able to fulfill or not.
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