ᐅ Retaining Higher-Level Neighboring Properties: L-Shaped Retaining Walls and Tips

What angle should the slope have? There are alternatives to 90 degrees...
We prefer natural stone.

AxelH. schrieb:

For this purpose, there are also L-shaped blocks with the feet on the other side. However, in my experience, they are significantly more expensive than standard models.

Sounds a bit like a left-handed mug. What is different about these L-shaped blocks?

We have the same problem. In a gap between buildings, we want to lower a section of the plot by about 5-10 meters (16-33 feet), approximately 1.5 meters (5 feet) deeper than the neighboring property. So far, we have been thinking about a natural stone wall, since those planter blocks are not exactly ideal. But I’m still not sure how this is supposed to work.

The perhaps silly question I have is: how do you secure the slope during excavation before you actually stabilize the slope?

rdwlnts schrieb:

We have the same problem. In a gap between buildings, we want to lower a section of the property by about 5-10 meters (16-33 feet), approximately 1.5 meters (5 feet) deeper than the neighboring property. So far, we have been thinking about a natural stone wall because those landscaping blocks are not exactly top quality. However, I still don't know how to make it work.
The perhaps silly question I have is: how do you stabilize the slope when excavating before you can secure the slope itself?

Just like you secure any excavation pit.

rdwlnts schrieb:

The perhaps silly question I have is, how do you secure a slope during excavation before the slope is stabilized?

If there is a building at the boundary, it will get expensive. If not, the neighbor should tolerate the intervention. Very steep slope for a short time. Secure with a membrane to prevent erosion. Install support elements, backfill and restore the neighbor’s land and property to its original condition.

However, as a neighbor, I would only tolerate this if you don’t have enough space to carry out the entire work on your own property.

hampshire schrieb:

Sounds a bit like a left-handed mug. What is different about these L-shaped blocks?

Well, for anyone puzzled and thinking about left-handed mugs 😉 , here is the explanation: The exposed concrete surface on these models is simply on the opposite side. This means the “nice side” faces my property without having to encroach on the neighbor’s land. Unfortunately, not all suppliers offer these models. I’m attaching the model and price overview from my supplier. This clearly shows the difference (including the price).

Thank you, icandoit.
They are all detached single-family houses, meaning at least 3m (10 feet) distance from the property boundary.
Concrete walls were already installed around each plot ages ago (partly to compensate for height differences, partly intended as fence foundations), but I have no idea how deep they go. There are probably no standard values for that. Therefore, we will most likely have to expose some of them anyway. Maybe they can still be used to retain the slope up to that point. But it might also look completely ridiculous.