Search a property
Use a NYC borough-block-lot number to open the right property view.
NYC property monitoring
Track meaningful changes at NYC buildings.
Search by BBL to review available public records, official links, and recent property activity. Request access when you are ready to monitor buildings over time.
Public lookup
Search a property
Need an example? View an example property.
Only have an address? Use NYC Finance property search to find the BBL while PropSignal address search is under review.
Public lookup is available now. Address search is still being verified, so BBL lookup is the most reliable way to open the right property.
Enter a 10-digit borough-block-lot number to open the property view. Only have an address? Use NYC Finance property search to find the BBL.
PropSignal organizes public record context for review. Verify important details in the official source system.
See what changed
Review available public records, recent activity, and official source links.
Monitor what matters
Request access when you are ready to save buildings and review changes over time.