Which property should we take?

But about 2.5m slope on the property and then no basement? How much do the earthworks cost?

It is only a 1.5 slope, right? No construction company has been able to tell us anything about the costs regarding earthworks yet. 347 to 348.5

I also read 1.5m...

Although I am also very new here, maybe I can contribute something helpful.

Actually, after more than a year of searching, I bought a plot of land a month ago.

During the search, real estate agents and also construction companies gave me some helpful tips that I had not even thought of myself:

- Basically, before buying a plot of land, you should always first check the geoportal of the respective federal state. I myself bought a plot of land in NRW. A year ago I saw a very cheap plot, but according to the geoportal and neighbors there was ironstone under the land. That stuff is very difficult to remove if you want to build a house with a basement there. The geoportal is at least free of charge in NRW.

- Ask neighbors (helped me a lot)

- Check the land register

- A free view to the south should be important (e.g. for photovoltaics on the roof, satellite dish)

- Check noise pollution

- Check light pollution

- Request a soil survey

- Check standard land values

There were also plots with a slope for sale for me. However, I was told that you would need a permit from the authorities to level the plot.

Can you tell me why the slope at the forest towards the street is more favorable?

Well, the slope presumably drains better away from the terrace than towards it.

We want to build without a basement and on one level, earthworks are necessary for both plots.

If you mean terrain modeling: neither is a suitable plot for slab-on-grade foundations – blood is in the shoe, the right plot is still sitting at home.

I would prefer the forest, but I think that's a matter of personal taste, depending on how connected to nature you are.