Essentially, China is sucking up a huge amount of housing materials, and that does increase the price in that sector.
1.)Material costs of construction are rising rapidly, which is due to:
2.)Demand increases from a growing population, which is exacerbated by:
3.)Age-extended generations now need housing for 3 generations vs 2 and
4.)Net In-Migration to many regions from immigration and population shifts to the sunbelt and finally
5.)George W's growing economy makes people rich enough to buy homes instead of renting.
I could add in the costs of government regulation and boomers buying second homes, but I think you get the drift. BTW - I'm a developer.