New York City's Department of Housing Preservation and Development (HPD) issued more than 41,000 mold violations in fiscal year 2025, the agency disclosed in a World Asthma Day announcement emphasizing the connection between housing conditions and respiratory health.
HPD enforces Local Law 55 of 2018, the NYC Indoor Allergen Hazard Law, which requires owners of multiple-dwelling buildings to proactively maintain apartments free of mold and pest infestations. From July 2024 through June 2025, the agency completed approximately 75,000 inspections — including more than 32,000 mold inspections and over 42,000 pest inspections — in response to nearly 96,350 indoor allergen hazard complaints citywide.
The figures underscore the scale of indoor mold as a housing and public-health issue in dense urban environments, and offer a regulatory model — proactive enforcement, defined tenant rights, mandatory remediation — that contrasts with the patchwork of state and local rules elsewhere in the country.