Construction costs are currently skyrocketing

On the topic of existing properties
Berlin metropolitan area, my small personal search area of 2km in a popular single-family house area. In the last 2 years, the supply was a handful of properties and correspondingly hugely overpriced. Currently, the supply is growing day by day. Meanwhile, there are 20 to 30 single-family houses. The prices are still inflated, but by far not as much as 6 months ago. The development is drastic and noticeable.

Does Berlin metropolitan area mean Brandenburg or even the outskirts of Berlin?

Does Berliner Speckgürtel then mean Brandenburg or even the outer districts of Berlin?

Outer districts of Berlin. It is still Berlin :)

Wow, I haven’t noticed anything about that so far. But I’m not actively looking either; I’ve just not turned off my car search on various portals. It only affects me indirectly now, since I’ve already found something (plot & new build). But if something happens or I can’t afford the annuity in 15 years, it could become relevant for me too. Besides, I had thought about selling everything in 10 years and buying a bigger plot with more space further out. That probably won’t happen anymore...

Wow, I haven't noticed anything about that so far. However, I'm not actively searching either; I just haven't deactivated my car search on various portals. It only affects me indirectly now, since I have already found something (land & new build). But if something happens or I can no longer afford the annuity in 15 years, it could become relevant for me too. Also, I have thought about selling everything in 10 years and buying a larger plot with more space further out. That probably won't happen anymore...

Wait and drink coffee. No one can tell you what will happen in 10 years. The offers on the common portals in the last 2 years have been massively exaggerated. Plots of land were generally offered with a 200 to 300 euro premium over the standard land value. Junk houses were sold expensively because location, location, location. The land price here will now *CRYSTAL BALL* not fall that much, but the offers will be more oriented toward the standard land value. A house will no longer be bought at any price. However, a good house with good substance will still retain its value. Construction prices are rising, so I see no reason to panic that good existing houses will drop anywhere. Many old (junk) properties here will be traded more realistically again.

Well, "supply and demand determine the price" only applies to fully transparent goods markets. The labor market works differently because its general product is the demand for labor. There is no model for that.

And the connection between money supply and inflation has been empirically refuted so thoroughly… It already starts with the fact that what a central bank can create electronically is not money that ever reaches the citizens' pockets. For that, it would have to physically print and distribute cash.

The problem is that YOU acknowledge having knowledge gaps, but professionals often operate with similarly limited understanding. They just express it in technical language so complicated that no one notices. To put it bluntly.

My crystal ball knows NOTHING about 2027. Nada. The world is moving in such a way that no serious forecast over such time spans is possible.

That building will become cheaper, I hardly believe, since building land will continue to become more expensive. Possibly the existing stock will decrease in price.

But that’s just guesswork!

It already starts with the fact that what a central bank can create electronically is not money that ever reaches the pockets of citizens. For that, it would have to physically print and distribute cash.

This again shows your gaps in knowledge. You might score points with this at the pub, but in reality, no physical cash is needed. Central banks are actually not the ones who truly create the money; that happens in commercial banks (savings banks, cooperative banks, private banks...) by granting loans against which only a partial balance of the bank stands (practically so little that you can roughly set it as "nothing"). The money supply in circulation is thus strongly controlled by interest rates. At low interest rates, many loans are granted, and thus a lot of money is created. An interest rate increase has exactly the opposite effect.

And the connection between money supply and inflation is so thoroughly empirically disproven…

Nothing is disproven here, only not reasonably demonstrable in practice. However, the connection is so obvious that it must have a kernel of truth. On the one hand, we have different money supply definitions that have different impacts. On the other hand, you have the problem that a) effects often occur with a time lag and b) market participants do not work with perfect information, and this information neither spreads immediately nor evenly. Information spreads in waves (Robert Shiller likes to use the word "epidemic"... he had already completed the work on "Narrative Economics" in 2019...). These waves can then also generate their own shocks, but also spirals. If you then look back with a fully rational perspective, of course no direct connection to the money supply emerges anymore.