New York Developers Are Building 99 Apartments at a Time

An analysis of 312 registrations filed through April 2026 under New York's 485-x incentive found that only three projects, or 0.9 percent, contain 100 apartments or more. The other 99.1 percent sit below 100 units. The median project contains 24 apartments and nearly one-third have 10 units or fewer.

The registry identifies prospective applicants rather than completed buildings, and filing patterns cannot prove intent in any individual project. In aggregate, the clustering is difficult to ignore.

The 100-unit line is not an administrative threshold but a cost boundary. Under Option A, the commonly selected 35-year exemption paired with a 20 percent affordability requirement, crossing it brings prevailing-wage obligations that industry estimates suggest raise hard costs roughly 18 to 28 percent depending on building type and labor mix. For a typical mid-rise that is another $45 to $65 per square foot, or $6 million to $12 million on a 120- to 150-unit project.

Splitting a site into two buildings of 70 to 99 units preserves the tax benefit while avoiding the wage trigger. Two buildings at 362 and 370 Livingston Street are each listed at 99 units. Bergen and Wyckoff Street addresses appear as four 99-unit buildings. The assemblage around Flatbush Avenue Extension, Fleet Place and Willoughby Street is filed as five separate 99-unit buildings, 495 apartments in total.

A second cliff sits at 10 units, below which buildings can receive benefits while remaining free-market with half of apartments becoming rent-stabilized. Under predecessor program 421-a, filings of 300 to 500 units were routine, including 554 units at 2 North Sixth Street, 501 at 10 Montieth Street, 469 at 123 Linden Boulevard and 467 at 29-22 Northern Boulevard.

The geographic skew follows the arithmetic. The Bronx accounts for 44.2 percent of reported units and Brooklyn 32.8 percent, while Queens and Manhattan trail well behind. Large institutional developers can still cross the line by internalizing construction management, negotiating labor agreements and financing at tighter spreads. Mid-market builders relying on third-party contractors generally cannot.

Implications

This is a live case study in how a threshold rewrites site selection. Threshold management is easiest on lower-cost, flexible parcels that can be subdivided, which is precisely why outer-borough filings dominate while transit-rich sites capable of supporting real density deliver less than zoning allows. For anyone underwriting New York land, the practical question is no longer what zoning permits but what the incentive makes financeable, and those two numbers have diverged. The program has restarted production. It has not restarted scale.