Mamdani’s Metric

Open housing code violations in New York City have risen 75% over the last decade, a trend that predates the current administration. Under Mayor Mamdani, violations have become the City’s central measure for evaluating owner performance and guiding enforcement. With new policies set to push violation counts higher, even where building conditions are unchanged, this metric now matters to every Multifamily owner, lender, investor, and policymaker. This report examines violation growth, the factors behind it, and what lies ahead.