Real estate stopped being the main source of wealth because other sources of wealth grew, not because the state interfered in the market to hobble real estate as an investment.
Humanity began progressing rapidly because of better enforcement of private property rights, which made investment to create productive capital more profitable.
Deliberately harming the real estate market by making it harder to invest in it will do no such thing, and will only add to the restrictions that have increasingly suppressed housing supply growth, and worsened housing affordability:
https://www.whitehouse.gov/sites/whitehouse.gov/files/images...
It's a bit of an extreme case, but basically if you'd own land and someone else took it over (not by force) and took care of it for a longer period (several years), that someone else could claim ownership and be granted the land.
So if you'd "abandon" your property, someone else could take it over, provided he would take care of it.
The modern equivalent would be, in my opinion, buying houses or apartments and leaving them unoccupied. Outright usucapio would be a bit strong, but I definitely think exponentially higher rates of taxation would make sense.
You know when humanity started evolving rapidly? When real estate stopped being the main driver for wealth. And you know how the system where the main source of wealth was real estate was named? Feudalism.
I'd much rather have socialism than feudalism...
I know that there's more options than these two, but we're seeing again a major increase in real estate value that's causing average people to not be able to buy their homes or not even be able to rent something decent. Over time it's starting to look a lot like that regime where a few people "rent" real estate to masses of people... and can (almost) control those masses through it.
Personally I'd make it so big groups of people get affordable rents or even affordable prices for homes, through various laws that incentivize private ownership and constant improving of property. The latter part is not even socialist, it's a Roman principle.