New York City Mayor Zohran Mamdani speaks during a seder gathering at Union Square, in Manhattan, New York City, U.S., April 6, 2026. REUTERS/David Dee Delgado
(New York, NY) – Mayor Zohran Mamdani’s administration is facing privacy concerns after the city released a large set of property information that critics say went far beyond the luxury second homes targeted by a new tax proposal.
The release reportedly included property values, owner names and addresses for more than 960,000 residences. Critics say the scope is far larger than the roughly 30,000 high-value second homes expected to fall under the planned pied-a-terre tax, raising fears that ordinary homeowners were swept into a public-facing database.
Supporters of broader property transparency argue that public records can help residents understand how taxes are assessed and how city policy is being applied. Privacy advocates counter that packaging owner names, addresses and valuations at scale can make it easier to target residents or expose sensitive personal information.
The dispute adds another flashpoint to the debate over Mamdani’s tax agenda. His administration has argued that wealthy property owners should pay more to fund city services, while opponents warn that aggressive tax policy could drive investment out of New York.
City officials are expected to face questions about why the release covered such a wide universe of properties and whether any safeguards will be added before additional data is made available.