Property records turn permits into decisions. Owner names, sale prices, lien histories, and assessed valuations make every permit row actionable as a sales lead or distress signal.

Four tables form the property side of the platform: property_sales (97M rows, 23 GB), property_liens (37M rows), acris_parties (33M NYC ACRIS records), and property_valuations (9M rows). All four are the join targets for the enrich_norm_addr.sql and enrich_with_sales.sql cron jobs that hydrate hot_leads with owner and price data each morning.

Original acquisition was a mix of BatchData purchases, county assessor scrapes, and the NYC ACRIS public bulk feed. The combined suite means any permit address in the platform can be enriched with a real owner name, last sale price, lien status, and assessed value in milliseconds.

• > 97M property sales records
• > 37M property lien records
• > 33M NYC ACRIS party records
• > 9M property valuation records
• > Joined nightly to permits + hot_leads via enrichment SQL

• → Add owner-phone enrichment via contractor_licenses join
• → NYC mortgage-doc subset for distressed-property cohort
• → Public API tier with usage caps