Look up a commercial property's ownership, debt, and transaction history using the Reonomy Property API
domain: reonomy.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Contact Reonomy sales to become an enterprise data customer, since API/bulk feed access is not self-serve
Once provisioned, authenticate against api.reonomy.com/v2 and review the property search/reference API docs
Search for the target property by address or parcel identifier to resolve Reonomy's matched property record
Retrieve ownership, corporate entity, lien/debt, and transaction history fields for the resolved property
For portfolio-scale needs, evaluate the bulk data feed option instead of per-property API calls
Known gotchas
Reonomy access (API or bulk feed) is enterprise-only and priced/contracted through sales — there is no public trial key
Owner-of-record data is resolved via entity matching (LLC/corporate filings) and can lag real-world ownership changes, especially for recently transacted properties
A single physical property can have multiple parcels or building records; downstream code should handle one-to-many property-to-parcel relationships rather than assuming a single match
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