Costs for retaining wall made of formwork stones

He shouldn’t skimp and should extend the sealing all the way under the head plates if it’s supposed to be covered with soil.

Absolutely. All parts in contact with the ground will be sealed.

How can one actually imagine that visually? Covered with soil, which then has to be held back so nothing falls down. Will there be a fence/fall protection on top?

True to the forum motto "a picture says more than 1000 words," here is a picture of the plan as a rough sketch. I left out sealing etc. The double rod mesh fence is always set between the lawn edging stones directly on the shuttering stones. Whether there is a better solution, I have to see. This was the spontaneous suggestion of the garden and landscape builder yesterday evening.

What does the backside (towards the neighbor?) look like? If these are the very simple shuttering stones, “someone” has to do something visually … plaster, wood, …

The property boundary is on a corner lot. That means the backside faces a green area, where at most a street (according to the city not even certain if the street will actually be built) will be created directly adjacent to our property. Therefore, I won’t plaster it extensively at the beginning. Maybe we’ll do that later.

If you are handy and generally not afraid of doing the work yourself, building the wall certainly isn’t rocket science and doesn’t really justify the high price. Mainly because no extraordinary expertise but rather perseverance is required here.

The manufacturers/dealers of the shuttering stones offer, for example, static calculations and specify exactly how the foundation has to be laid, which stones to use for which height, and what reinforcement bars to use....

I have already looked at the structural design. It really is a clear regulation when how much reinforcement steel must be used. For me, it’s mainly about making the foundation and renting the appropriate equipment like excavators or trench tampers, and ensuring that there are no concrete pockets in the shuttering stones. You can’t really speak of wanting to “spend” the money. I can easily imagine other things to do with the money :D

For me, it's mainly about the construction of the foundation and the equipment to be rented for it, such as excavators or trench tampers, and ensuring that there are no concrete pockets in the formwork blocks. You can't really say "wanting" to spend money. I can very well imagine something else that you could do with the money :D

Trench tamper? What for :)

Taking care of excavators & co. is of course a bit more time-consuming, unless your civil engineer (or someone from the neighborhood) can take care of it. On the other hand, the effort is manageable and at the end of the day even kind of fun....

If you fill the formwork blocks row by row (or for example up to 2 rows) yourself (concrete mixer), the risk of concrete pockets forming is very low!?

Also keep the fence in mind when considering the manufacturer's static calculations. What height should it be and preferably with privacy slats?

And also consider in the static calculations that you are not creating the standard case, but rather are adding 25 cm more soil above the actual wall.

Your planning probably will not meet the manufacturer's "standard static" requirements.

but it would be my first shuttering block wall, which is supposed to withstand the earth pressure from part of our property right away. That is a bit too risky for me, that the wall might fall over in a few years because I made a mistake somewhere.

I am missing the anchor in the drawing. If that thing falls, it will fall lengthwise, like a tree.

Also keep the fence in mind when considering the manufacturer's static calculations.
What height should it be, and preferably also with privacy slats?

And also take into account in the statics that you are not producing the standard case, but rather backfilling 25 cm more soil above the actual wall.

Your planning probably will not meet the "standard statics" of the manufacturer.

In the statics table available to me, there is a case with slope over the formwork stones (<30°) and a loaded surface, for example, by a parking lot. All constructions have the same number of reinforcement bars in the wall (2 pcs 8mm horizontal, 4 pcs 8mm vertical). However, I would certainly have the landscape gardener check it again before he starts like this.

I’m missing the anchor in the drawing. If that thing falls, it will fall lengthwise, like a tree.

Anchors are of course planned. I just left them out so that the rough structure of the wall with the lawn edging stone is visible. Reinforcement bars go into the formwork stones horizontally as well as vertically, whereby the vertical bars also go into the foundation (at least 50 cm deep).

Stupid question, how are the lawn edging stones supposed to be fixed?