NYC has 8 weeks to break ground on 14,500 new apartments or developers lose hundreds of millions in tax breaks. Here is what is happening with the 467-m tax incentive program, why the June 30, 2026 deadline matters, and what it means for the NYC housing market.
What is the 467-m tax incentive program?
The 467-m program is a New York State property tax incentive enacted in April 2024 as part of a broader housing reform package. It offers significant property tax exemptions to developers who convert non-residential buildings into rental housing, with at least 25% of units restricted to households earning an average of 80% of Area Median Income. The program is structured in three tiers based on construction start date: 35 years of exemption for projects breaking ground before June 30, 2026, 30 years for projects starting before June 30, 2028, and 25 years for projects starting before June 30, 2031.
Why is the June 30, 2026 deadline so important?
On a major conversion project, the difference between 35 years and 30 years of property tax exemption can total hundreds of millions of dollars in present value. That is enough to make a project that pencils today fall apart tomorrow if the developer misses the window. Developers operating with billions of dollars in financing commitments are racing to close construction loans, finalize design, and break ground before the deadline.
How many new apartments could break ground before the deadline?
NYC Comptroller Mark Levine’s office released an analysis in March 2026 finding that 12.2 million gross square feet of Manhattan office space south of 59th Street contains the potential for 14,500 apartments. Approximately 3,600 of those units would be income-restricted affordable housing. All of those projects could potentially start renovation by June 30, 2026 and qualify for the maximum 35-year exemption tier.
What does this mean for NYC homeowners and renters?
New housing supply is the most reliable way to reduce price pressure on existing housing. The current NYC vacancy rate of approximately 1.4% is the lowest since 1968. Adding 14,500 new apartments to the market over the next 2 to 3 years would meaningfully ease that imbalance and provide real downward pressure on rents and sale prices. Use our Buy vs Rent calculator to see how the supply outlook may affect your timing.
Will this actually lower NYC rents?
Office-to-residential conversions serve multiple policy objectives: they reduce office vacancy (currently 22.3% per Cushman and Wakefield, nearly double pre-pandemic levels), increase residential supply, produce affordable units in high-opportunity Manhattan neighborhoods, and reuse existing buildings rather than requiring new ground-up development. Conversion activity has scaled rapidly, from less than 1.2 million square feet annually before 2020 to 4.1 million square feet as of August 2025, with another 8.8 million square feet across 25 properties in the active pipeline. The number of projects that break ground by June 30, 2026 is the leading indicator for NYC’s housing supply trajectory through 2028.
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