Hello dear forum community,
we need to build two retaining walls, each 80 cm (31.5 inches) high, along the boundary with our neighbor to support our two parking spaces. The development plan states that retaining walls are only permitted up to a maximum height of 80 cm (31.5 inches) and must be constructed as "dry walls" (without mortar or adhesive). I have already found out that dry walls do not necessarily have to be made from natural stones, as long as the stones are neither glued nor mortared together. Additionally, the estimate from our architect is only about one-third of the price quoted by the landscaping company.
Unfortunately, my partner believes that support with plant bricks, which can also be built by oneself, is insufficient to bear the load of two cars.
Now I am wondering if the use of angle blocks would be possible, and whether this would still be considered a dry wall since the individual blocks are also not glued or mortared together, and a dry wall can be built from concrete masonry units.
So far, I have avoided asking the municipality to prevent them from insisting on natural stones.
Thank you all very much for your opinions.
we need to build two retaining walls, each 80 cm (31.5 inches) high, along the boundary with our neighbor to support our two parking spaces. The development plan states that retaining walls are only permitted up to a maximum height of 80 cm (31.5 inches) and must be constructed as "dry walls" (without mortar or adhesive). I have already found out that dry walls do not necessarily have to be made from natural stones, as long as the stones are neither glued nor mortared together. Additionally, the estimate from our architect is only about one-third of the price quoted by the landscaping company.
Unfortunately, my partner believes that support with plant bricks, which can also be built by oneself, is insufficient to bear the load of two cars.
Now I am wondering if the use of angle blocks would be possible, and whether this would still be considered a dry wall since the individual blocks are also not glued or mortared together, and a dry wall can be built from concrete masonry units.
So far, I have avoided asking the municipality to prevent them from insisting on natural stones.
Thank you all very much for your opinions.
L
LStein-Freund16 Jul 2018 20:27Hi everyone,
First of all, thanks for your responses.
@Knallkörper
Your explanations make sense to me, but since we only have about 6 meters (20 feet) of space in width, I don’t want to lose almost 1 meter (3 feet) because of the large natural stone blocks.
@Steven
Your solution simply sounds great.
I spoke today with the guy from the local building authority, and he said that L-shaped concrete blocks (L-blocks) are not an issue.
Would you still recommend double-checking this statement?
In such matters, you don’t want to face the risk of having to dismantle it later.
Thanks to all of you.
@Nordlys nice wall 😉
First of all, thanks for your responses.
@Knallkörper
Your explanations make sense to me, but since we only have about 6 meters (20 feet) of space in width, I don’t want to lose almost 1 meter (3 feet) because of the large natural stone blocks.
@Steven
Your solution simply sounds great.
I spoke today with the guy from the local building authority, and he said that L-shaped concrete blocks (L-blocks) are not an issue.
Would you still recommend double-checking this statement?
In such matters, you don’t want to face the risk of having to dismantle it later.
Thanks to all of you.
@Nordlys nice wall 😉
K
Knallkörper16 Jul 2018 21:46Well, 30cm (12 inches) might be enough, especially if you use granite dry-stone wall blocks that are about 20cm (8 inches) wide. It definitely looks better this way. However, the official from the building authority seems to allow you some freedom of choice. The only possible issue could be if a neighbor decides to legally enforce compliance with the zoning plan.
I would get it in writing that the L-shaped concrete blocks are considered adequate and compliant here.
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