Thomas1980
2016-12-21 07:44:10
- #1
Hello everyone,
We originally planned to build without a basement, but are now reconsidering because the soil report recommends replacing the soil about 1.50 meters deep due to depressions that are unfavorable for load-bearing capacity. Otherwise, the soil is sandy and permeable.
The groundwater starts at 1.70 to 2 meters. (The plot slopes down about 30 cm from the street - we would also need to raise about 15 cm here so that the top of the floor slab is above street level.) According to the soil report, no perched water was encountered.
We are now considering whether it would be more cost-effective not to refill the hole dug for the soil replacement in layers with compactable material, but to install a raised basement. A raised basement may protrude 1.39 meters above ground level in our area.
We would definitely design it as a "white tank." What we do not want is water lowering during the construction phase (pumping water out of the excavation). That costs too much.
What I would like is that due to the height, you get an additional view in the living room and possibly more light comes into the living room.
Using the basement as a garage is probably not an option given the groundwater situation - I would only provide openings in the basement wall above ground.
Is this a cost-effective alternative for us? We would have to provide stairs, etc., the terrace would be problematic - we do not want to refill because we would also want to have windows in the basement on the south side.
There are different options: insulate the basement and equip it with underfloor heating --> full living space / basement only insulated without heating, ....
Thanks for your thoughts to help us decide
PS: Area to be built on: approx. 100 sqm
We originally planned to build without a basement, but are now reconsidering because the soil report recommends replacing the soil about 1.50 meters deep due to depressions that are unfavorable for load-bearing capacity. Otherwise, the soil is sandy and permeable.
The groundwater starts at 1.70 to 2 meters. (The plot slopes down about 30 cm from the street - we would also need to raise about 15 cm here so that the top of the floor slab is above street level.) According to the soil report, no perched water was encountered.
We are now considering whether it would be more cost-effective not to refill the hole dug for the soil replacement in layers with compactable material, but to install a raised basement. A raised basement may protrude 1.39 meters above ground level in our area.
We would definitely design it as a "white tank." What we do not want is water lowering during the construction phase (pumping water out of the excavation). That costs too much.
What I would like is that due to the height, you get an additional view in the living room and possibly more light comes into the living room.
Using the basement as a garage is probably not an option given the groundwater situation - I would only provide openings in the basement wall above ground.
Is this a cost-effective alternative for us? We would have to provide stairs, etc., the terrace would be problematic - we do not want to refill because we would also want to have windows in the basement on the south side.
There are different options: insulate the basement and equip it with underfloor heating --> full living space / basement only insulated without heating, ....
Thanks for your thoughts to help us decide
PS: Area to be built on: approx. 100 sqm