Terrace on a hillside on stilts - wood or steel better?

Hello everyone,

I need your input because our neighbor to the east of us has thrown our outdoor facility planning off course. The plan was to secure the area with 2 rows of 1m L-shaped stones. Now our neighbor is going to build 3 full stories towards the garden, meaning he will want to go out over the basement towards the garden.

This would make the planning pointless since we wanted to fill up and he wanted to excavate. We would then have 2.5m L-shaped stones on the side, which none of us wants.

Therefore, the question now is, do you have an idea what it would cost to build the terrace on a scaffold, possibly together with the equipment room. See screenshot. We would need to expose the basement to the garden, but then we would not need to place L-shaped stones (€26k).

Would wood or steel be advisable?

I have seen it like that before. And firewood was stored on the terrace

That is already good. The hobby room in the basement (2,385m shell construction) would then get a patio door to the outside. The main terrace would still be upstairs. Of course, the cost estimate depends on the execution, but I have no idea at all, as I have not had to deal with it until now :-( It is also new to us that we are allowed to realize this, since at the beginning of May the development plan was changed from 2 full floors to 3 full floors towards the slope.

We would have to expose the basement towards the garden, but then we wouldn't need to install L-bricks (€26k). Would wood or steel be advisable?

How is the carport planned, in terms of materials? Price-wise, I see the option remaining roughly equivalent or slightly higher. So (in aluminum) with carport 40k +

Here again the side view. If we were to remove the earth down to the basement floor, we would have a flat surface up to the boundary and an additional floor. Roughly estimated, with the basement excavation + excavation to the boundary (i.e. exposing the basement) it would be 700cbm. At €18 for transporting and disposing, already €13k would be gone.

How was the carport planned, in terms of materials?

Price-wise, I see the option staying adequate or slightly above. So (in aluminum) with carport 40K +

Planned was: carport see screenshot + paving and L-shaped stones



Price of the carport gross 12k€

Now I have no idea. The 26k€ only included the L-shaped stones and filling. Additionally, 20k€ were planned for terrace and paths + 12k€ for the carport.