Standard land value developed or undeveloped and drainage

Hello. How realistic are the indications regarding the standard land value and what do they include? Are development costs included, is the value calculated including possible costs for necessary leveling of the plot, or are these really pure purchase prices for undeveloped building land? We have a plot in mind for which the standard land value for 2021 is given as 110€ for building-ready land. If I now assume that the value also increases by 10€/year in 2022 as in previous years, the plot should cost approximately 120€, maybe even 130€. But including probably extensive development costs there, or in addition?

The plot is not developed, and probably a slope (1 meter high, 3 meters wide, 25 meters long) has to be removed there. The plot is created by division so that a building of the current owner is then exactly on the boundary. Right next to it the new plot drops by that one meter because the buildings of the current owner were built elevated compared to all neighbors. Who decides whether the separated plot must be filled or excavated? In case of excavation, the current owner would have to reconsider the drainage of his building. In case of filling, we would have to make sure that our water does not flow to the neighbor on the lower side.

Regards

The standard land value is initially a purely calculative figure based on purchase prices. It says very little about the purchase price of the property, which is why considerations about what is "included" are meaningless. At the end of the day, you have to be willing to pay as much as the seller agrees to.

The possibility to raise or dig down may depend on the development plan (e.g. maximum heights relative to level X), otherwise also on the state building code; in my opinion, a few details are missing here (location, perhaps a sketch?) to be able to answer concretely.

You can hardly use a standard land value: it is only as helpful as knowing how "fresh" it is and that the sellers' gold rush mentality is not too heated. It never includes costs, always only the raw purchase price for the land.

The plot is undeveloped and probably a slope (1 meter high, 3 meters wide, 25 meters long) has to be removed there. The plot arises through division, so that a building of the current owner will then stand exactly on the boundary.

You should illustrate your post. The description sounds like a "structure" similar to a dike. The mentioned building would have to have boundary privileges so that – especially without taking over setback areas – a boundary could run along it. How is the development of the plot secured, and how accessible would it be for the fire department?

Right next to it, the new plot drops by that one meter because the buildings of the current owner were built raised compared to all neighbors. Who decides whether the separated plot needs to be filled or excavated?

Zoning plans and state building regulations may contain provisions on the extent to which terrain alterations a) are even permitted at all and when b) they already constitute buildings themselves. The "terrain alteration" refers to the original terrain, not the condition found at the time of purchase. The measures of the previous owner may therefore have already "used up" the possibilities.

P.S.: Does the new plot still offer a significant building window at all?

How realistic are the indications of the standard land value and what do they include?

The standard land value is a "benchmark" derived from past purchase prices. Usually, it also states whether it is for developed or undeveloped land. Development only means that access roads as well as necessary utilities are available on the street. So only the bare land - but not your bare land, rather the old purchase prices of plots in the area where the standard land value applies. In the end, the plot has the price someone is willing to pay for it. Although €110 or €130 actually doesn't matter, since it is a very cheap price anyway. So not a preferred metropolitan or major city location.

P.S.: does the new plot still offer a significant building area at all?

Yes, it does, at least as far as I can judge. But since I am not an expert, I have now made an appointment with an architect; otherwise, it’s all too uncertain for me. Hopefully, he will be able to assess whether it is overpriced, suitable, or if I will have to spend half the value of the plot again on development.