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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 11, 2026, 6:45 AM
3,026 datasets, 56,681 catalogued fields, 0 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.
Look up buildings, housing, and property records.
Gaps in the data behind this page
Source last observed Oct 11, 2026, 6:00 AM.
86 of the 330 datasets in this topic hold no queryable rows.
86 / 330
Source: /api/scorecard
Check it yourself: /api/scorecard?domain=housing-buildings#/datasets_not_queryable
9 of the 252 mirrored datasets in this topic lag the source they copy.
9 / 252
Source: /api/scorecard
Check it yourself: /api/scorecard?domain=housing-buildings#/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, any dataset page.
Showing 5 of 30 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…
The Department of Housing Preservation and Development (HPD) records complaints that are made by the public for conditions which violate the New York City Housing Maintenance Code (HMC) or the New Yor…
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 ha…