Hello dear forum community,
until now I have been a silent reader, but now I would like to actively ask for your help.
We own a plot of about 500 m² (5380 sq ft) in BW and are planning to build a house. The plot slopes down approximately 2.20 meters (7 ft) from the street view towards the northwest. We plan a prefabricated house (KFW55EE standard) with a basement, where the back of the basement faces the slope and looks out into the garden behind. The neighboring plots are already developed. The floor plan is also quite fixed. On the street side, to the left of the planned house, a parking space and later a carport for one vehicle are planned. Next to the house, which will be about 11 x 9 meters (36 x 30 ft) in size, there remains a trapezoidal area about 4.50 meters (15 ft) wide at the front (corner of the house) and 6 meters (20 ft) wide at the back, and 9 meters (30 ft) long, up to the property boundary with the southwest neighbor, designated for the carport. The plan was to build the carport at ground level next to our house. The neighbor has a garage at this location, which is accessed from the street via a steep ramp (see pictures).
The question now is how to hold back the parking area from the garden?
We have considered the following options:
- A dry stone wall would be nice; it can be a bit rustic. However, I have concerns because the vehicle standing on it increases earth pressure and a height of about 2 meters (7 ft) with a width of 6 meters (20 ft) would need to be retained. We actually did not want to create terraces there, as that would take up too much space and there is a roughly 15-meter (50 ft) tall walnut tree in the garden.
- Concrete wall: A concrete wall connected to the basement foundation. This would take up the least garden space but would also not be cheap and would require a strong foundation. Is it possible and advisable to simply attach this wall to the basement wall? Or at least connect the foundation with the slab under the basement?
- Concrete blocks: What I find very interesting are the Redi Rock from Mauthe. These are concrete blocks with a visible surface that looks like a stone wall. Since the parts interlock with studs (like Lego blocks) and are relatively large and heavy (500-1000 kg / 1100-2200 lb each), no concrete foundation is necessary; a gravel base is sufficient and the blocks are installed dry (theoretically reusable). I also like the look, but installation would require heavy machinery (excavator, wheel loader, crane, or similar) due to the weight of the blocks. I found few prices, but roughly about 200 per m² (square meter).
- Gabions on a foundation: I donât find this very appealing and itâs not cheap either. I havenât looked into it much.
What do you think about these alternatives? Or do you have other ideas?
until now I have been a silent reader, but now I would like to actively ask for your help.
We own a plot of about 500 m² (5380 sq ft) in BW and are planning to build a house. The plot slopes down approximately 2.20 meters (7 ft) from the street view towards the northwest. We plan a prefabricated house (KFW55EE standard) with a basement, where the back of the basement faces the slope and looks out into the garden behind. The neighboring plots are already developed. The floor plan is also quite fixed. On the street side, to the left of the planned house, a parking space and later a carport for one vehicle are planned. Next to the house, which will be about 11 x 9 meters (36 x 30 ft) in size, there remains a trapezoidal area about 4.50 meters (15 ft) wide at the front (corner of the house) and 6 meters (20 ft) wide at the back, and 9 meters (30 ft) long, up to the property boundary with the southwest neighbor, designated for the carport. The plan was to build the carport at ground level next to our house. The neighbor has a garage at this location, which is accessed from the street via a steep ramp (see pictures).
The question now is how to hold back the parking area from the garden?
We have considered the following options:
- A dry stone wall would be nice; it can be a bit rustic. However, I have concerns because the vehicle standing on it increases earth pressure and a height of about 2 meters (7 ft) with a width of 6 meters (20 ft) would need to be retained. We actually did not want to create terraces there, as that would take up too much space and there is a roughly 15-meter (50 ft) tall walnut tree in the garden.
- Concrete wall: A concrete wall connected to the basement foundation. This would take up the least garden space but would also not be cheap and would require a strong foundation. Is it possible and advisable to simply attach this wall to the basement wall? Or at least connect the foundation with the slab under the basement?
- Concrete blocks: What I find very interesting are the Redi Rock from Mauthe. These are concrete blocks with a visible surface that looks like a stone wall. Since the parts interlock with studs (like Lego blocks) and are relatively large and heavy (500-1000 kg / 1100-2200 lb each), no concrete foundation is necessary; a gravel base is sufficient and the blocks are installed dry (theoretically reusable). I also like the look, but installation would require heavy machinery (excavator, wheel loader, crane, or similar) due to the weight of the blocks. I found few prices, but roughly about 200 per m² (square meter).
- Gabions on a foundation: I donât find this very appealing and itâs not cheap either. I havenât looked into it much.
What do you think about these alternatives? Or do you have other ideas?
H
hanghaus200011 Jul 2021 08:11Who approved the neighborâs garage on the property line? Itâs easily 5m (16 feet) high.
H
HilfeHilfe11 Jul 2021 08:15Phew, thatâs going to require a lot of filling.
H
hanghaus200011 Jul 2021 08:35Does the surveyorâs plan leave out the yellow shed at the property line? The neighborâs house surely has a livable basement?
This isnât just about the retaining wall. Or do you really want to build your ground floor at exactly ground level?
This isnât just about the retaining wall. Or do you really want to build your ground floor at exactly ground level?
H
hanghaus200011 Jul 2021 08:37HilfeHilfe schrieb:
Wow, that's going to require quite a bit of backfilling. No, if you design it with a usable basement, then probably not.
H
hanghaus200011 Jul 2021 08:58As the original poster intends, the retaining wall will only be 1 meter (3.3 feet) high, and the excavation from the basement will be used for backfilling. Where is the terrace supposed to be located?
Similar topics