Prioritizing horticulture. Do you want to have the entire garden planned?

Since we are already on the topic of costs for outdoor facilities. Attached are the costs for a hillside location:

My property has a height difference of about 3m over 22m from the access road down to the terrace and the southern boundary. Something like this costs money and must be planned sensibly.

- We compensate for 10-20cm by lowering the house towards the access road.
- We will retain 1m with L-shaped stones around the terrace and the carport.
- 10-20cm will be retained from the lawn to the beginning of the slope.
- Then there is a slope of 60cm
- And a final L-shaped stone of 1m

The L-shaped stones (1m x 54m) including installation, filling up the terrain, substructure for the terrace and carport with gravel and compaction, etc. costs me about €26k gross.

Then there are still 180m² of driveway, paths around the house and terrace, and the fence. €20k is planned for this.

With planting and double carport including storage room, I am coming to €58k alone for the outdoor facilities. That is more than 15% of the house loan excluding the land. But these are also works (terrain modeling) where I believe they must be carried out before the shell construction so that there is no "later" here. If we could not afford this, I would definitely have sold the property.

And this only because the terrain was underestimated by someone clueless. Even if I now exclude the hillside location, I am still miles away from the propagated €5-10k in self-performed outdoor facilities which are mentioned in large numbers on the internet.

The L-stones (1m x 54m) including installation, piling up the terrain, substructure for the terrace and carport with gravel and compacting, etc. cost me about €26k gross.

That is at least 10k too much

That feels like €10k too much. Maybe a little less because the terrain is already being modeled. However, the structural builder can charge well for that because he knows no one dares to touch it. I tried to award it separately. No chance. Everyone declined with the reasoning that this must be done/coordinated by the contracted structural builder himself. Others also quoted this price, maybe €2-3k cheaper. If not everyone started building in the construction area at the same time, it might have been possible to do it later and cheaper from the garden, but unfortunately not this way.

That's at least 10k too much

-54 m L-blocks 1 m high: costs according to my most expensive offer 11k
-Graveling and compacting up to 20cm costs around 12 euros/sqm -> estimated for terrace and carport at Zaba 100 sqm = 1200 euros
-Excavator for one week all-inclusive (80 euro hourly rate): 3200 euros
-possibly topsoil 50 m³ (guessed) -> 1200 euros

That makes 16.6k, so I would (partly) agree with you, if there wasn’t still something significant added.

Edit: From the shell builder it is of course generally cheaper!

Since the topic of L-blocks keeps popping up here and there, I have long known that my offer is among the most expensive. Our "luck" is that we dealt with it in advance and these are planned costs that are also reflected in the financing. Neighbors a few plots away told their general contractor: "Build me a house – we have amount X available." At most, the amount can cover the building structure, so I suspect that the neighbors will still look around when it comes to the outdoor facilities due to the same slope location.

Then there are still 180m² of driveway, paths around the house and terrace and the fence missing. 20k€ are planned for this.

Do you already have an offer for this?
Seems a bit too optimistic to me.

But it's really impressive how much cost differences in height can cause.
At one point we had a floor plan with a basement planned, where two excavations for daylight were planned. I also had to swallow when I saw how much L-stones would cost...