measure,value,as_of,notes "Rent stabilized units, citywide","About 960,000",2023,"Derived by the source as 41.3 percent of 2,323,990 occupied rental units. Reported as just under one million." "Share of occupied rental units that are rent stabilized","41.3 percent",2023,"New York City Housing and Vacancy Survey." "Total occupied rental units, citywide","2,323,990",2023,"The denominator for the share above." "Vacancy rate among rent stabilized units","0.98 percent",2023,"Below one percent. For context, a vacancy rate under 5 percent is the statutory basis for continuing rent stabilization." "Rent stabilized units that were overcrowded","13.1 percent",2023,"As defined by the survey." "Units entering rent stabilization","About 25,940",2024,"Annual changes report." "Units leaving rent stabilization","At least 11,042",2024,"Reported as a minimum by the source, not an exact count." "Net change in stabilized units","Plus 14,898",2024,"Entries minus the reported minimum for exits. Because exits are a floor, the true net gain may be smaller." "Largest single reason for leaving","Market rate threshold exemption under 421-a",2024,"6,191 units, 56 percent of recorded losses." "Second largest reason for leaving","Expiry of 421-a tax benefits",2024,"3,193 units, 29 percent of recorded losses." "Co-op and condominium conversions","819 units",2024, "Substantial rehabilitation exemptions","507 units",2024, "Expiry of J-51 benefits","330 units",2024,