China's economic system is a hybrid one, the world's very first that achieves that high a level of GDP using a mixed controlled state sectors and a free market coexisting together. That's one of the reasons all Western expectations based on their current textbook theories failed to predict China's trajectory, as their experiences are all based on either so-called free market systems, or purely a command economy, like what China and Soviets used to be. China is neither, and at the same time, both. So they will never get it right when it comes to their expectations and predictions about China's trajectory; they don't understand China. China's hybrid system has now what we called a flywheel effect, some in west are still in denial about this fact and trying to jam the flywheel in every possible ways imaginable.
Housing in China is hybrid, is supply based, not like in west where housing is more or less demand based. Land supply in China is limited, especially along the seaboard. Main player is fiscal budget, but one can say for sure China has its own form of monetary dominance, whereas US is gradually sliding into their own form of fiscal dominance, putting actual cash into general populace hands, leading to worrisome inflation, as feds failed to soak them up in a form of portfolio. China can split housing in 2 forms; one is the usual upfront expensive land sales with no follow on property taxes, the other one with cheaper land sales, just like industrial ones, but you'd need to pay yearly property taxes, which the local governments match it up with bonds sales and coupon payments. Chinese citizens would not be able to have a cake and eat it as well. These fiscal budgets go into a lot of social and infrastructure projects. China's property sector would never go boom, as it is a hybrid, not like those in the west, where free market effed everything up while watchers on the wall were caught napping.
So public has to choose which is it, as money has to come from somewhere to finance what is needed for social programs, including birth rates. As it is, there are already too many people in China. If China can maintain its current level, that's the best scenario, if not, there are some pluses to it as well.