Is It Permissible In Islam To Construct Multi-Layered Cemeteries?

Is it permissible in Islam to construct multi-layered cemeteries?

It is permissible in religious terms to construct multi-layered cemeteries whose divisions are split from each other by means of concrete caps and a layer of earth as well, due to limited land and economical necessities, and bury corpses in them.

Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWA