ᐅ Are Additional Costs for Building on a Sloped Plot Predictable?

@ivenh0 May I ask what you paid per running meter for the 3.00m (10 feet) wall panel?

I can also see what we have paid for.
White tank waterproofing on the uphill side
Thicker ceiling slab
The large amount of reinforcement in the foundation slab and retaining wall
A section of masonry here, a few cubic meters of excavation there, a few cubic meters of mineral mixture. Above a certain height, you need heavy-duty solutions.
Every digger bucket costs money,
Everything that needs to be excavated or filled must be supported.

Rocky soil, for example, makes support easier but earthworks difficult and expensive.

You can save costs by building along the slope. The house and garage act as retaining walls.
You don’t build a basement, but a lower ground floor with living spaces. That is different from a cellar.

Solveigh schrieb:

@ivenh0 may I ask what you paid per running meter for the 3.00m (10 feet) wall panel?

I can't say exactly, as several factors are involved.
Wall panel around 1,000 euros gross
+ 2 excavators: x hours at 130 €/h per excavator
+ concrete
+ geotextile fabric
+ drainage
+ gravel
+ backfilling
+ skilled labor
= around 2,000 euros?

BauherrFranken schrieb:

Although I do not plan it as luxuriously as ivenh0 does. The garden itself will not be filled in, so the retaining wall at the property line won’t be excessively high. There is no doubt it all looks truly top quality.

It’s a pity, because that is exactly what defines this type of property. For us, you step directly from the dining area onto the terrace and then into the garden. From above, you have a good view down. But no one can look in from the street.

The additional costs can be estimated with good planning. Don’t rely solely on the architect’s calculations; also have the civil engineer provide an estimate, as they can calculate it more precisely.

And take one from the area. Maybe the one the neighbors had.