Mayor Mamdani Publishes Database of New York Property Owners

New York City Mayor Zohran Mamdani directed the New York City Department of Finance to publish a searchable database of property owners potentially subject to a new state pied-à-terre tax. The tax targets unoccupied, non-primary residences in the five boroughs valued over $1 million. While the New York City Department of Finance defended the release as a transparency tool required by state law for public inspection of property rolls, the move has drawn widespread condemnation.

Critics, including Council Minority Leader David Carr and the Real Estate Board of New York, characterized the database as a tool for doxxing. The list contains over 960,000 entries, vastly exceeding the 31,000 homes initially targeted. Opponents noted that the data includes middle-class homes, tax-exempt diplomatic buildings, and a shopping center, suggesting the tax is far broader and more complicated than the administration suggested.

The publication follows a series of confrontational actions by Mamdani against the city's wealthy, including a promotional video filmed outside billionaire Ken Griffin's penthouse and a social media post warning affluent residents to check their mail. While City Hall estimates the tax will generate $500 million annually, Comptroller Mark Levine's office projects a lower yield between $340 million and $380 million. Republican strategists and real estate leaders argue the database exposes homeowners to security risks and harassment by political activists.