ᐅ Level the basement or the plot of land?

Created on: 9 Dec 2019 13:24
M
Mudo1991
Hello everyone,

Our plot slopes down from street level by almost 1.80m (6 feet). Please see the image below (each square corresponds to 1 meter (3 feet)).

Now to my question: Could you share your opinions on whether you would prefer a basement or to raise the ground level? Since we want to position the house as close to the street as possible, it’s not clear if opting for a basement is the best solution here. The plot is somewhat “in between” in this regard.

Thank you in advance.

Skizze eines Grundrisses: großes Rechteck mit Unterteilungen und Lagerbereich rechts.
M
Mottenhausen
9 Dec 2019 15:01
Mudo1991 schrieb:

@11ant The survey area covers the entire plot.

So, a slope of 1.8m (6 feet) over nearly 40m (130 feet) depth of the plot? That is so slight that it should hardly affect the decision on whether to build a basement or not. If the street level were lower, I would consider the option of an underground garage, but as it stands... get quotes for both with and without a basement and then decide based on a cost-benefit analysis.
M
Mudo1991
9 Dec 2019 15:04
Mottenhausen schrieb:

So a 1.8m (6 feet) slope over almost 40m (130 feet) of lot depth? That’s so slight that it should hardly affect the decision about having a basement or not. If the street were lower, I would consider an underground garage, but as it is... get quotes with and without a basement and then decide based on a cost-benefit comparison.

Even if I want to bring the ground floor up to street level?
M
Mottenhausen
9 Dec 2019 15:13
Yes, definitely. Simply backfilling and compacting layer by layer doesn’t cost a fortune.

1m³ (approximately 1.5 tons) of frost protection/mineral mix.
1 ton of frost protection = max. 20€.
You can easily calculate the cost.

Rent an excavator and a vibrating plate compactor for 2 to 3 days, plus transport costs for the material depending on the distance. I have no idea where the €30,000 figure is coming from, especially since the base price of a house usually already includes a certain amount of frost protection and foundation work, depending on the provider.
H
haydee
9 Dec 2019 15:24
Even on a flat plot, you will need to remove more than just the topsoil for the foundation slab.

Regardless of the plot
Do you want a basement?
Which rooms should be located there?
Some builders construct a basement on a perfectly level plot, while others fill in 2 m (6.5 ft) or more within the building area to avoid having to build a basement.

How are your neighboring properties developed?
M
Mudo1991
9 Dec 2019 16:32
We actually don’t need a basement and would only use it reasonably for a utility room and technical equipment. We would still have an office on the ground floor, considering a bedroom for old age. As a fully basemented house, the basement would be oversized.

@haydee The neighboring plot to the north is vacant, to the east there are buildings at a sufficient distance, and to the south, the garage is right at the property line with a large house directly behind it.
11ant9 Dec 2019 16:50
Mudo1991 schrieb:

We would still have an office on the ground floor with a view to a bedroom for old age. A full basement would also be oversized.

Oh, two suggestions at once for the recommendation, but first, there is still a lot to read for several rounds: Especially if 1991 is your birth year, you are more likely to build again close to retirement than it would make sense to prepare a care-friendly ground floor in advance. And partial basements "save" only in a few special cases.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/