When 421-a expired in 2022, the effect was immediate and predictable. Development slowed, projects stalled, and many in the industry stepped back entirely. The program had its flaws, but it did something essential: it made rental housing financially viable in New York City.

Its replacement, 485-x, is the new tax abatement program passed at the state level, designed to reinvigorate the development of affordable housing by private sector developers. It does that by offering multi-year property tax relief in exchange for the developer’s commitment to hitting specific affordability targets.  

The law aims to fix the flaws of 421-a, bringing more affordability. stronger tenant protections, and better wages for construction workers. On paper, it is a more equitable program.

In practice, it is producing something more complicated.