Ask anyone actually living in Stockholm, and you'll hear how the system really works. Last I heard there was a 20 year wait to get an apartment the legal way.
But it's always supply and demand that gets the upper hand in the end. If there's a shortage of supply, and you put in more market rules & regulations, costs will shift elsewhere (like the broker in the article) or the black market will simply grow to clear the market.
It's hard to increase transportation infrastructure in a built-up area. And when you do, everybody says it didn't work because traffic is still bad or trains are still overfull. But they never notice that population increased during construction. If you could stop growth, then your transportation needs stabilize.
Doesn't really feel fair to me though, because it's so hard to move into the closed city.
Personally, I'm a fan of limiting rent increases to a max of something like 5-10% per year. Not so much that it's a total hardship to deal with a max increase; not so little that landlords have to do max increases every year or get way off market; also not so little that a landlord can't catch up later if they purposefully lag on increases to keep a preferred tenant.
I don't think this meets the criteria most would consider “working”.
Rent control tries to make housing more affordable by reducing the cost, which immediately reduces the supply. At that point, rent control ends up increasing housing costs.
Theory and real-world case studies mean that this is so obvious, that I just assume anyone that's passed economics 101 and is advocating for rent control is either grossly incompetent, currently very drunk, or is disingenuous and actually wants to use the power of the government to make sure other people cannot obtain secure and stable housing.
Or they are one of the lucky few living in a rent controlled apartment.
Remove market economy and the Party will distribute housing as it sees fit, and you have affordable housing, like in the Soviet Union.
Otherwise, inevitably housing will cease to be accessible once a bit more than 50% of population is happy with their housing conditions - then they will vote for people who will help them build value of their house by locking out the underhoused minority.
I can't see a fix to this that won't undermine either democracy (by somehow making people's political choices matter less or not at all, openly or covertly, aka "Putin elections"), or market economy. Both of which sounds worse than just putting up with unaffordable housing.