ᐅ Demolition of a house with a basement, new construction without a basement
Created on: 13 Dec 2020 22:56
H
Hemi5.7
Hello dear forum,
I registered here because I am planning to build a house soon and still have some open questions.
On the plot where I want to build, there is an old house with a basement that will be demolished.
The new house will be an urban villa without a basement.
The construction contractor, who is also responsible for the demolition, told me that he wants to crush parts of the old house with a concrete crusher and use it to fill the excavation pit. The rest will then be filled with gravel/sand.
My question is: Is it common practice to use material from the old house to fill the hole under the new house? And are there any special considerations to keep in mind when demolishing a house with a basement and building a house without a basement on the same site?
I registered here because I am planning to build a house soon and still have some open questions.
On the plot where I want to build, there is an old house with a basement that will be demolished.
The new house will be an urban villa without a basement.
The construction contractor, who is also responsible for the demolition, told me that he wants to crush parts of the old house with a concrete crusher and use it to fill the excavation pit. The rest will then be filled with gravel/sand.
My question is: Is it common practice to use material from the old house to fill the hole under the new house? And are there any special considerations to keep in mind when demolishing a house with a basement and building a house without a basement on the same site?
To be honest, I’m not very experienced with construction topics.
My current landlord is going to build my new house. He is a contractor himself. The design already exists; he built the same house about 5 years ago, and my girlfriend and I really like it. The house was also built without a basement.
He could build it with a basement as well, but according to him, it would cost about 100,000 for a waterproof concrete shell (sometimes called a “white tank”) on top of that.
Before this, I had appointments with the usual suspects (Roth, etc.), and they also quoted me prices around 100,000.
Of course, a basement is a nice feature, no question about it, but roughly 80,000 more compared to a slab-on-grade foundation is not worth it for me. If I had offers around 50,000 for a basement, I wouldn’t hesitate.
My current landlord is going to build my new house. He is a contractor himself. The design already exists; he built the same house about 5 years ago, and my girlfriend and I really like it. The house was also built without a basement.
He could build it with a basement as well, but according to him, it would cost about 100,000 for a waterproof concrete shell (sometimes called a “white tank”) on top of that.
Before this, I had appointments with the usual suspects (Roth, etc.), and they also quoted me prices around 100,000.
Of course, a basement is a nice feature, no question about it, but roughly 80,000 more compared to a slab-on-grade foundation is not worth it for me. If I had offers around 50,000 for a basement, I wouldn’t hesitate.
My question is not why you are building the new house without a new basement. Rather, why don’t you just leave the old basement as it is (or even the entire house).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
11ant schrieb:
My question is not why you are building the new house without a new basement. Rather, why don’t you simply keep the old basement as is (or even the entire old house)? According to the builder, that is not possible because the basement is too old and structurally unsuitable.
The existing house was built in the early 1900s and originally served as a kind of garden pavilion, which was gradually expanded over the years.
There is an attached part from the 1980s that actually includes a very nice underground garage. This section, along with the part above it, could probably be retained since the structure is solid. However, in that case, we wouldn’t be able to build the house the way we envision it.
I can share some photos here if you’d like.
Hemi5.7 schrieb:
It is a raised basement, so if you wanted to build the new house with a basement, the excavation would need to be extended further. I would rather call it a walk-out basement level. And yes, the "must" has to go if a ground-level entrance floor is to be built on top. If it were reduced to a crawl space, it would be too low—in short, here is my approval for demolition.
However, in this case, I tend to recommend having the house built as a developer project and only purchasing it after completion.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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