what you saw may have been parts of the ghost site that the Chinese built in the wake of the great financial market crisis of 2008/2009 to stimulate the economy. and that is now starting all over again. in addition, there is the effect of the collapse in demographics. this is a phenomenon that we will also see in the West, real estate markets that are going into a secular downward trend.

GhostofTruth

I’ve seen videos of some of the apartment buildings being pulled down. A lot of them appear to have defective build quality. What a crazy economy!!

On the flip side isn’t the real estate market globally due a correction at some point? I’ve seen a lot of housings estates built where I live and again the build quality is not good in some of them. For example Persimmon homes have been doing shoddy builds.

econ

China's housing market continues to deflate

I’ve seen videos of some of the apartment buildings being pulled down. A lot of them appear to have defective build quality. What a crazy economy!! 
On the flip side isn’t the real estate market globally due a correction at some point? I’ve seen a lot of housings estates built where I live and again the build quality is not good in some of them. For example Persimmon homes have been doing shoddy builds. 