An analysis of the data found that, from 2007 to 2014, the decline in the number of rent
regulated apartments located within New York City's landmarked properties was four times
higher than in non-landmarked parts of the City. Citywide, landmarked properties showed a much greater decrease in the number of rentstabilized units (-22.5%) than non-landmarked properties (-5.1%). At the end of this seven year period, there was a net loss of nearly 10,000 rent-stabilized units in landmarked districts in the City.