Hello,
We will soon be excavating our plot. We plan to remove about 20cm (8 inches) below street level, which is about 10cm (4 inches) above the finished floor level, and then refill with sand/topsoil. In areas where the driveway, parking spaces, or terrace will be, the excavation will be around 80cm (31 inches).
Along the southern property boundary, we need to build a 60cm (24 inches) retaining wall. (We will be digging 60cm (24 inches) deeper, while the neighbor’s land is likely 40-60cm (16-24 inches) higher.) My first thought was L-shaped concrete blocks, but these would basically need to be embedded into the neighbor’s property. We then thought that gabions might be an option. However, when I search for gabions and retaining walls, it seems quite complex (two sections, stacked at an angle, with frost protection on the earth side).
Is it not possible to simply place the gabions straight on a foundation? It’s only 60cm (24 inches), or does that not make a difference?
Thanks in advance for your advice.





We will soon be excavating our plot. We plan to remove about 20cm (8 inches) below street level, which is about 10cm (4 inches) above the finished floor level, and then refill with sand/topsoil. In areas where the driveway, parking spaces, or terrace will be, the excavation will be around 80cm (31 inches).
Along the southern property boundary, we need to build a 60cm (24 inches) retaining wall. (We will be digging 60cm (24 inches) deeper, while the neighbor’s land is likely 40-60cm (16-24 inches) higher.) My first thought was L-shaped concrete blocks, but these would basically need to be embedded into the neighbor’s property. We then thought that gabions might be an option. However, when I search for gabions and retaining walls, it seems quite complex (two sections, stacked at an angle, with frost protection on the earth side).
Is it not possible to simply place the gabions straight on a foundation? It’s only 60cm (24 inches), or does that not make a difference?
Thanks in advance for your advice.
In terms of price, from affordable to expensive => natural stones (split/rough) => L-shaped retaining walls (reinforced) => gabions.
But if you excavate deeper and your neighbor raises their level, gabions and natural stones become irrelevant anyway => You should talk to each other and plan this 120cm (47 inches) height difference together.
But if you excavate deeper and your neighbor raises their level, gabions and natural stones become irrelevant anyway => You should talk to each other and plan this 120cm (47 inches) height difference together.