Beijing Municipal Bureau of Land and Resources posted three plots of land on its website on Thursday, two of which are residential, located in Changping district. It is clearly noted in the post that aside from the area for building affordable housing, houses built on the rest of the land with an area of less than 90 sq m must account for more than 70 percent.

The move is seen as the comeback of the '90/70' requirement after seven years' suspension of that policy.

In 2006, the State Council released a document requiring that commercial housing which were approved after June 1 that year with an area of less than 90 sq m must account for 70 percent of the total homes being built.