Hello everyone,
I’m new here and have a feasibility question. It concerns a house that already has a basement and a foundation about 1 meter (3 feet) thick. The house was built in 1964. My question is whether it would be possible to expand the basement below this building, more specifically beneath the foundation (which I think is a better option than breaking up the foundation), potentially adding two underground levels. At the rear, there is plenty of green space adjacent to the property, and behind that are houses we also own and rent out. If this is possible, how would you estimate the costs?
I’m new here and have a feasibility question. It concerns a house that already has a basement and a foundation about 1 meter (3 feet) thick. The house was built in 1964. My question is whether it would be possible to expand the basement below this building, more specifically beneath the foundation (which I think is a better option than breaking up the foundation), potentially adding two underground levels. At the rear, there is plenty of green space adjacent to the property, and behind that are houses we also own and rent out. If this is possible, how would you estimate the costs?
11ant schrieb:
A foundation one meter (3.3 feet) thick doesn’t exactly suggest trouble-free ground conditions. Then, using a horizontal drilling method—FlowTex, anyone?—a two-story basement (second and third underground levels) is planned to be added beneath the building, even extending beyond its footprint. No more compliments, Your Questions (or whatever it’s called)—to me, this sounds like a top-tier false alarm. We’ve been missing a humor section here so far, thanks for that! But horizontal directional drilling techniques are working excellently, at least as of 2021.
That said, I’ve never heard of a project like this before.
There are certainly options.
But then we’re probably looking at six figures at least, possibly low seven figures.
Is the building really worth that much?
S
Smialbuddler9 Dec 2021 18:03TmMike_2 schrieb:
Is the building really that valuable? That seems to me the most useful question so far.
What speaks against demolition and building new with all the desired basements? That could actually be cheaper, especially since a building from the 1960s also sounds like it might require additional renovation and therefore even more costs.
C
Chris-Cross10 Dec 2021 00:27After all the responses, it seems the plan will be to build the basement around the house into the garden. Then cover it with soil and replant.
S
Sir_Batman11 Dec 2021 18:18TmMike_2 schrieb:
But horizontal directional drilling methods still worked excellently in 2021.
Nevertheless, I have never heard of a project like that.
There are definitely possibilities.
However, we would probably be looking at costs in the high six figures, early seven figures.
Is the building really that valuable? There are now apparently a few thousand "iceberg houses" in London.
The cellars in Notting Hill, London, reveal quite a lot about this ;-)
Sir_Batman schrieb:
In London, there are now probably a few thousand so-called “iceberg houses.”
The basements in Notting Hill alone reveal quite a few of them ;-) I’m just saying, if the land costs 15,000–20,000 per m² (1,400–1,860 per ft²), you should definitely consider it.
Although I would then opt for a completely new build.
Similar topics