Source transparency
Data sources
LotContext collectors retrieve public datasets away from the website request path. Records are archived, normalized, resolved to stable identifiers, validated, and published as versioned data before the website or API can read them.
Parcels and boundaries
- DCP Primary Land Use Tax Lot Output (PLUTO)
- DOF Digital Tax Map lot boundaries
Housing and construction
- HPD Housing Maintenance Code Violations
- DOB NOW Job Application Filings
- DOB NOW Approved Permits
Recorded documents
- ACRIS Real Property Documents
Publication safeguards
- Immutable raw source versions
- Field-level provenance
- Schema and quality validation
- Atomic publication revisions
This list describes the currently implemented canonical catalog, not every source LotContext may
support later. Source rights must be approved before commercial display or API delivery. Public
data should always be verified with the official publisher. Missing or unpublished records are
not evidence of compliance, safety, title status, or legality.