Mold violations in Manhattan.

1.8% of Manhattan’s mold violations are marked Not Complied With, against 2.1% citywide.

See what is open on one building.

18,558 mold violations cited in Manhattan over the last three years.

What this means

A mold violation means the owner has to correct the condition under the housing maintenance code, and larger mold jobs fall under Local Law 55 as well. HPD tracks each cited condition until the owner certifies the correction.

Manhattan, by category: Heat and hot water, Lead paint, Vermin and pests, Water leaks, Electrical. All five boroughs

How an HPD mold violation gets issued

Most of these violations start with a tenant's call to 311. HPD schedules an inspection, and if the inspector confirms the condition, HPD issues a violation and mails the owner a Notice of Violation. From then on anyone can look it up on HPD Online by address, and it stays open until HPD accepts a correction or closes the case another way. See how HPD, DOB, and OATH/ECB fit together.

When Manhattan mold violations are cited, by month

Mold violations HPD has cited in Manhattan, by calendar month, over the last 36 complete months, so every month is counted across the same three years. August has the most, 1,914. December has the fewest, 1,281.

Mold violations by class: A, B and C

HPD sorts every mold violation into one of three classes, and the class sets the correction window and how urgently an owner must act. In Manhattan, HPD has issued 1,829 Class C mold violations, immediately hazardous, correct within 21 days. It has issued 9,171 Class B, hazardous, correct within 30 days, and 9,123 Class A, not hazardous, correct within 90 days. The windows are from HPD's correction table.

Class C is 9.1% of the 20,123 mold violations recorded in Manhattan.

How often Manhattan mold violations get certified corrected

285 of Manhattan’s 1,829 Class C mold violations have ever been certified corrected, 15.6%. Those certifications came a median of 33 days after the inspection, and 252 days at the 90th percentile. 589 have gone more than a year with no certification at all, 32.2% of the class.

Not Complied With is HPD’s status for a violation a reinspection found uncorrected. 1.8% of mold violations in Manhattan carry it.

What happens after an HPD certification is filed

A filed certification is not a closed case. HPD reviews the documents, and documents with a defect send the case to Invalid Certification, which means filing again. A reinspection that finds the condition not properly corrected sends it to False Certification instead. The filing date sets the rest: filed by the certify-by date, the violation shows NOV Certified On Time; filed after it, NOV Certified Late, which HPD does not accept. Defect Letter Issued is the inspector seeing the condition corrected while HPD still waits on documents. The status glossary explains each one.

Manhattan against the rest of New York City

Manhattan has 20,123 of the city’s 134,108 mold violations, 15.0%. Here is every borough’s total for the same category.

Which Manhattan streets carry the most open mold violations

These are the Manhattan streets carrying the most open mold violations.

Open means HPD still lists the violation as open.

Manhattan buildings with open mold violations

12 of the 916 Manhattan buildings with open mold violations and a page here, a different 12 each week, listed by street. Each count covers mold violations only, counted on October 17, 2026.

• 217 Avenue A, Manhattan 1 open mold violation
• 29 East 2 Street, Manhattan 1 open mold violation
• 415 East 115 Street, Manhattan 2 open mold violations
• 319 Edgecombe Avenue, Manhattan 2 open Class C mold violations
• 331 Edgecombe Avenue, Manhattan 3 open Class C mold violations
• 666 St Nicholas Avenue, Manhattan 1 open Class C mold violation
• 82 Wadsworth Avenue, Manhattan 2 open Class C mold violations
• 45 Wadsworth Terrace, Manhattan 1 open mold violation
• 542 West 142 Street, Manhattan 1 open mold violation
• 705 West 170 Street, Manhattan 2 open Class C mold violations
• 560 West 174 Street, Manhattan 3 open mold violations
• 562 West 175 Street, Manhattan 1 open mold violation

Every HPD status on Manhattan mold violations

Every current status HPD has given a mold violation in Manhattan, most common first. Each name links to its own page in the glossary.

The tables count violations across the borough, from our copy of HPD’s data: 20,123 mold violations in Manhattan. The buildings listed above link to their own pages; no owner is named here. Citywide, this week’s docket, ViolationScout.