Certificate of occupancy issue date

Official City of Los Angeles open-data product exposing LADBS Certificate of Occupancy records through dataset 3f9m-afei, an anonymous SODA API, and downloadable full files. Rows carry CofO number, issue date, latest certificate status and status-effective date; assessor book/page/parcel, legal-description and street-address keys; the related PCIS permit; permit and building facts; and, where populated, an `occupancy` value explicitly defined as the approved use for the structure. Public metadata identifies LADBS, official provenance, CC0 1.0 dedication, a weekly committed refresh, and data updated 2026-08-17; the checked live data contained 128,551 rows with CofO issue dates from 2005-01-26 through 2026-08-14. This is a certificate-record dataset, not proof of present operations: 82.89% of checked rows have null occupancy, no separate certificate-type or successor identifier is emitted, and current interpretation must be pinned to `cofo_issue_date`, `status_date`, `latest_status`, and the dataset-level source vintage.

Official daily-updated NYC Open Data dataset of certificates of occupancy issued through DOB NOW from March 2021 onward. Records resolve by BIN, street address, borough/block/lot and BBL, and publish DOB job filing, certificate application and C of O identifiers, request and issuance dates, issued status, filing type and sequence, dwelling-unit count, and geographic reference fields. This is an issued-certificate index: it does not publish approved use, occupancy group, floor/area schedules, effective or expiration date, document URL, or an explicit current/superseded flag. Absence must not be interpreted as evidence of present use, illegal occupancy, safety, or noncompliance.

Official San Francisco DBI monthly open dataset of changes in the count of new residential units approved for occupancy. A row identifies a building permit application and address, issuance date, document type (Initial Temporary Certificate of Occupancy, Amended TCO, or Certificate of Final Completion), and additional units certified. DBI staff compile the records from occupancy certifications. This is not a complete Certificate of Occupancy register: only certifications that change the net unit count are recorded, a CFC may be omitted when an earlier TCO already counted all units, and the schema has no block/lot, approved-use code, TCO expiration, certificate revision identifier, or current legal-occupancy status. Preserve each emitted event and do not infer present operations, present legal occupancy, or code compliance. Validate dates: although the description focuses on units made available since January 2018, a live aggregate returned dates from 2002 through an anomalous year 2205.