Any price control inevitably has negative consequences in the market. This is practically a law of economics.
> Its limited to buildings that are 15 years old or older, and it limits rent increases to 8% annually, which in practice is about 1 - 3% of all lease agreements in CA, a very small amount.
If it with have such minimal effect why even have it?
> Commercial construction loans are based on the 15 year revenue generating potential of the proposed building, this law was created specifically with that in mind so as not to interfere.
Then it's not as bad as it could be. Doesn't mean it's justified.
It may not seem justified to you, but to a low income family in a rapidly gentrifying area, it means everything.
And what is the magnitude of the consequences of this law? That’s what matters. It’s very small.
There is an exception: if the price ceiling is higher than the market price, then the ceiling will have no effect. It may be that the allowed rate of increase is high enough that it's an ineffective price control, in which case there would be minimal market distortion.