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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 2:10 PM
3,026 datasets, 56,681 catalogued fields, 9,808 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.
Gaps in the data behind this page
Source last observed Oct 10, 2026, 2:01 PM.
710 of the 3,026 datasets in the catalog hold no queryable rows.
710 / 3,026
Source: /api/field-coverage
Check it yourself: /api/field-coverage#/catalog/datasets_mart_declared
49 of the 2,408 mirrored datasets lag the source they copy.
49 / 2,408
Source: /api/scorecard
Check it yourself: /api/scorecard#/mirror_lag/datasets_behind
This note returns on its own when the measurement moves.
These pages state their own gaps: /datasets, /freshness, /scorecard, /scorecard/fields, /analyses, /ontology, /graph, /alerts, any topic page under /domains.
Look up buildings, housing, and property records.
Showing 3 of 3 datasets
Contains information pertaining to permit applications for work to landmark sites submitted to and processed by LPC.
The Department of Buildings investigates and takes disciplinary action against construction professionals when their conduct violates standards set forth in the New York City Construction Codes. Actio…
Outdoor advertising regulations and zoning laws reduce visual clutter and protect people from dangerous and illegally installed signs. Signs must comply with regulations outlined in the NYC Constructi…