Can the law stipulate that Shenzhen can cut off the supply during the purchase restriction period?

According to the regulations, it is legal to cut off the supply during the purchase restriction period in Shenzhen, but there must be a pre-sale permit for commercial housing, which is also limited to first-hand housing transactions.

"The so-called restricted sales, that is," restricted transactions ",means that newly purchased houses need to obtain real estate licenses for a certain number of years before they can be listed for trading or go through formal transfer procedures.