The experts do not always agree either. At the time, I saw three appraisals for a property that ranged from 500,000 to 800,000 euros. Above all, the current market situation is significantly different from the usual valuation methods, and if that is not sufficiently taken into account, much lower figures simply result.
If standard land values have no significance, why do they exist then?
They are STANDARD VALUES based on past observations, relating to a standard plot of land. Deviations from this (e.g. excessively large plots are not assessed at the full standard land value or a particularly high land utilization increases the land value - but this rather belongs to the commercial sector).
A completely different method would be average prices from a very large German real estate listings portal. They say that the price per sqm (living space) in Q2 2020 on this street would be about €4200.
Again, AVERAGE.
I also have no clue what an appraiser should be better at than looking at comparable properties.
He does not look at comparable properties, but precisely at THE property that interests you. And this property is assessed absolutely individually. However, the client determines in which direction the valuation should go. As a buyer, you are interested in a low value, the seller in as high a value as possible. In the end, however, supply and demand decide what the property is actually worth. If it’s worth the price to you, then buy. Otherwise, negotiate and/or let it be. In the purchase process, an appraisal might give you a good feeling (also that the condition is okay), but it will not coax a seller into suddenly massively lowering the price. We have a seller’s market!
Otherwise, you can also try using review providers on the internet. The large blue comparison platform, for example, has one that is freely accessible. The values are not the best, there are no purchase prices, only one provider in Germany has that, but as far as I know, it's not so easy to get a free evaluation there.
But, actually quite simple: Go to the real estate agent - even one of the big ones - and ask what the house would bring if sold. Then an appraisal will be made first - free of charge - and after that you can decide whether to give them the order to sell - free of charge. Rumor has it, however, that this will change starting next year.
Alright, they all use the same 2-3 interfaces in Germany - even the big big ones access them in the background - and for a rough market price assessment, you don't necessarily have to jump into the lead funnel of a broker.