As cities across the country look for new revenue from high-value real estate, New York City’s new non-primary residence surcharge has quickly become a test of how aggressively local governments can roll out new tax programs. In New York, that debate sharpened on Friday, August 7, when attorney Randy Mastro, representing three homeowners, sued Mayor Zohran Mamdani’s administration over its publication of a broad property database tied to the city’s new pied-à-terre tax. The dispute centers on a rollout that the city said was legally required and transparent, but that plaintiffs said caused confusion for owners who do not owe the surcharge.
Lawsuit targets database tied to the new surcharge
The lawsuit was filed by three homeowners — Rachel O’Brien, Carmine Morano and Simon Hedley — and asks a court to postpone implementation steps for the surcharge while requiring the city to take down the property database, according to Gothamist’s report on the complaint. The legal challenge does not attack the tax itself. Instead, it focuses on notice, procedure and whether the city’s rollout improperly swept in owners who were not actually subject to the surcharge.
At the center of the dispute is scale. City officials published a database of more than 900,000 properties that they said might be subject to the new non-primary residence surcharge, then later sent notices to about 17,000 owners identified as potentially covered, according to Gothamist and the city’s Department of Finance materials. Mastro said that mismatch imposed costs and confusion on people who owed nothing.
“The mayor wanted a headline, and he got one,” Mastro told Gothamist. He said thousands of owners were confused and exposed by a process that, in his view, did not amount to lawful notice. A spokesperson for Mamdani, Matt Rauschenbach, said the Law Department would vigorously defend the case and said the surcharge is intended to support public investments including parks, streets and affordability measures…