There is a section that addresses that specific point:
> The Landmarks Preservation Board protects the facades of historic buildings, but not their interiors. Thus landmarking led townhouses once divided into multiple apartments to be converted into single-family mansions for the incoming super-rich—serving only to further inflame the speculative energies that skyrocketed the prices of the buildings they preserved.
> The Landmarks Preservation Board protects the facades of historic buildings, but not their interiors. Thus landmarking led townhouses once divided into multiple apartments to be converted into single-family mansions for the incoming super-rich—serving only to further inflame the speculative energies that skyrocketed the prices of the buildings they preserved.