Condos built under the 421a tax abatement program, are starting to fade away to a point where there will eventually not be any more.

Created in 1971 to spur development in neglected neighborhoods of New York, the 421-a program allowed condo buildings to be exempted from millions of dollars in property taxes for 10 to 25 years, depending on location and other criteria. The program expired in 2016, but the tax breaks persist depending on when a building was built. Owners of 421-a apartments pay a fraction of the property’s full taxes during a period of ...