NYC DOHMH Indoor Environmental Complaints: 311 Reports

Records from 311 complaints received by the New York City Department of Health and Mental Hygiene (DOHMH). Each record represents a single complaint about indoor environmental conditions, such as air quality, pests, or mold. The data can be used to identify complaint patterns but does not confirm the presence of violations.

Use Cases

• Mapping complaint density by neighborhood using Latitude, Longitude, and Incident_Address_Borough.
• Analyzing complaint type trends over time using Complaint_Type_311, Descriptor_1_311, and Date_Received.
• Correlating complaints with property information using BBL (Borough-Block-Lot) and BIN (Building Identification Number).
• Assessing complaint resolution status and administrative geography using Complaint_Status, Community Board, and Council District.

Strengths

• Contains precise geospatial identifiers including Latitude, Longitude, BBL, and BIN.
• Includes administrative geography columns like Community Board, Council District, Census Tract, and NTA for cross-analysis.
• Dataset is hosted on multiple official platforms (data.cityofnewyork.us, datagov), indicating its public importance.

Limitations

• Metadata conflicts exist: last updated dates differ between platforms (2026-04-03 vs 2026-04 05).
• Key metadata is missing from all sources: total row count, dataset size, license, and author.
• Data documentation explicitly states a complaint record does not confirm a violation was found.

Provenance

Source

New York City Department of Health and Mental Hygiene (DOHMH), via 311 complaint system.

Collection Method

Largely received via complaints to 311.

Time Range

null

Freshness

Last updated on 2026-04-05 according to one platform entry.

Geography

New York City, specifically the five boroughs (Incident_Address_Borough).