Housing Maintenance Code Violations
Pursuant to New York City’s Housing Maintenance Code, the Department of Housing Preservation and Development (HPD) issues violations against conditions, in rental dwelling units and buildings, that have been verified to violate the New York City Housing Maintenance Code (HMC) or the New York State Multiple Dwelling Law (MDL). Each row in this dataset contains discrete information about one violation of the New York City Housing Maintenance Code or New York State Multiple Dwelling Law. Each violation is identified using a unique Violation ID. These Laws are in place to provide requirements for the maintenance of residential dwelling units within New York City. Violations are issued by Housing Inspectors after a physical inspection is conducted (except for class I violations which are generally administratively issued). Violations are issued in four classes: Class A (non-hazardous), Class B (hazardous), Class C (immediately hazardous) and Class I (information orders). For more information on violations, see https://www1.nyc.gov/site/hpd/owners/compliance-clear-violations.page The base data for this file is all violations open as of October 1, 2012. Violation data is updated daily. The daily update includes both new violations and updates to the status of previously issued violations. An open violation is a violation which is still active on the Department records. See the status table for determining how to filter for open violations versus closed violations, and within open violations for a more detailed current status. The property owner may or may not have corrected the physical condition if the status is open. The violation status is closed when the violation is observed/verified as corrected by HPD or as certified by the landlord. The processes for having violations dismissed are described at http://www1.nyc.gov/site/hpd/owners/compliance-clear-violations.page Using other HPD datasets, such as the Building File or the Registration File, a user can link together violations issued for given buildings or for given owners.
Open in the graph · Relate this dataset · What these columns mean
Freshness
The publisher's promise
How the agency that publishes this data says it keeps the data current.
FreshNo automatic refresh
- Automatic refresh
No scheduled refresh runs for this dataset. A refresh you ask for on this page runs anyway.
This dataset is large enough that an operator must review it before the automatic queue copies it, and that review has not happened yet.
- Says it updates
- Daily
- Actually updates about every
- 1 days
- Publisher last updated the data
- Oct 10, 2026
Our mirror
Whether our copy of this data is current with the source.
Not mirrored
- We last synced
- —
- Rows in our copy
- —
- Rows at the source
- —
- Our copy trails the source by
- —
Columns
Each source column, with the name and type we use to store it.
4 of 41 columns carry a concept; 41 carry a description from the publisher. Read the concept column before you join. A column with no concept carries no claim from us, and a name that looks like a key is not one.
| Source field | Display name | What the publisher says it is | Concept | Source type | Stored as | Stored type | Row identifier | Unit |
|---|---|---|---|---|---|---|---|---|
communityboard | CommunityBoard | The NYC community board associated with the provided entity location (numbered 1 – 59. | Not bound | Text | communityboard | text | — | |
latitude | Latitude | The latitude associated with the provided entity location. | Not bound | Text | latitude | text | — | |
registrationid | RegistrationID | Unique identifier of valid registration information | Not bound | Number | registrationid | numeric | — | |
rentimpairing | RentImpairing | A rent-impairing violation is a condition within a multiple dwelling which constitutes, or if not promptly corrected will constitute, a fire hazard or a serious threat to the life, health or safety of occupants thereof (New York State Multiple Dwelling Law Section 302). | Not bound | Text | rentimpairing | text | — | |
bbl | BBL | The Borough, Block, Lot (BBL) associated with the provided entity location. It is formatted as a ten-digit numerical identifier, which is unique to each parcel of real property in NYC. |
Download
A full Parquet copy of this dataset has not been produced yet. The CSV sample is available now, and the rows API returns the whole mirror.
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Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/wvxf-dwi5
- Version
- Snapshot taken:
Oct 10, 2026, 11:01 AM - What we changed
- We did not change the data. We stored it as published.
- Publisher
- codenownyc
- We retrieved it
- —
Update history
We have not recorded an update run for this dataset yet.