NYC Rodent Guides
What the city rules say, who has to act, and what works on the ground. Each guide links to the public sources it uses.
Mice and Rats in a NYC Rental: Landlord and Tenant Duties
Who must deal with mice and rats in a NYC rental? Landlord duties, how to report to 311 and HPD, violation timelines and what an HP action is.
Read the guide →HPD Rodent Violations in NYC: Classes, Deadlines and How to Clear Them
HPD rodent violations explained: Class A, B and C, correction deadlines, penalties, how owners certify correction and what pest violations require.
Read the guide →How to File a 311 Rat Complaint in NYC and What Happens Next
How to report rats to 311 in NYC, what the Health Department inspects, what pass and fail mean, fines up to $2,000 and how long follow up takes.
Read the guide →NYC Rat Mitigation Zones: What They Are and Where
What NYC rat mitigation zones are, which neighborhoods were named in 2023, how the rule works and what it means for owners and residents.
Read the guide →Brownstone Rat Exclusion Guide: Seal the Routes Rats Actually Use
How rats enter NYC brownstones and rowhouses: areaways, cellar doors, stoop voids and utility lines, with the materials that seal them for good.
Read the guide →Norway Rats in NYC: Signs, Burrows and What Actually Works
A guide to the Norway rat in New York City: size, droppings, burrows, how they get indoors, when activity peaks and what actually removes them.
Read the guide →More reading: the blog, common questions and our sources.