DOF Property Assessment Change
Changes to Property Assessment. The data is collected and entered into the system from different sources within the agency and is a record of value changes to assessments and exemptions for property.
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
- Every 6 months
- Actually updates about every
- —
- Publisher last updated the data
- May 27, 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
- 48,408,326
- Our copy trails the source by
- —
Columns
Each source column, with the name and type we use to store it.
0 of 15 columns carry a concept; 14 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 |
|---|---|---|---|---|---|---|---|---|
actchgland | ACTCHGLAND | Actual Land Value Change | Not bound | Number | actchgland | numeric | — | |
wen | WEN | Date when change was made | Not bound | Calendar date | wen | timestamp | — | |
exseq | EXSEQ | Exemption Sequence | Not bound | Number | exseq | numeric | — | |
parid | PARID | PARID uniquely identifies each assessment record; PARID Key - This field is a combination of Boro, Block, Lot, Easement | Not bound | Text | parid | text | — | |
rectype | RECTYPE | Record Type; Always 1 for ordinary real estate | Not bound | Number | rectype | numeric | — | |
lline | LLINE | The publisher describes this column nowhere. | Not bound | Number | lline | numeric | — | |
nycode | NYCODE | New York Code | Not bound | Number | nycode | numeric | — | |
valchgbldg | VALCHGBLDG | Change in Building Value |
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.
Refresh this dataset
Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/a5nd-6mit
- Version
- Snapshot taken:
May 27, 2026, 1:30 PM - 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.