Data Sources
Building Health X aggregates data from 55+ official NYC government sources to give you a complete picture of any building before you sign a lease. Every data point links back to a real public record.
55+
Official NYC data sources
Daily
Data refresh cadence
1M+
NYC properties indexed
Data is sourced from public government databases and may have processing delays of up to 24–72 hours. Building Health X does not create or modify source records. For critical decisions, always verify information directly with the relevant NYC agency.
HPD — Housing Preservation and Development
Official siteHPD Building Violations: Open, pending, and resolved Housing Maintenance Code violations by building
HPD Complaints: Tenant-initiated complaints about building conditions including heat, hot water, and pests
HPD Registration: Landlord and property registration records required by NYC law
HPD Litigations: Court cases and legal proceedings initiated by HPD against building owners
HPD Vacate Orders: Emergency and non-emergency vacate orders issued for buildings deemed unsafe
DOB — Department of Buildings
Official siteDOB Building Jobs: Active and historical construction permits, filings, and work orders
DOB Complaints: Complaints filed about construction, unsafe conditions, and code violations
DOB Violations: Formal violations issued by DOB inspectors
DOB Certificate of Occupancy: Legal occupancy status and permitted use of each building
Elevator Inspections: Elevator safety inspection results and violation history
Boiler Inspections: Boiler safety records and compliance status
311 — NYC Service Requests
Official site311 Service Requests: All resident-submitted service requests by address, including heat, hot water, noise, rodents, and more — 30 days, 90 days, 1 year, and 3 year views
DOHMH — Department of Health and Mental Hygiene
Official siteRodent Inspections: Results of NYC Health Department rodent inspections by property
Pest Inspection Results: Bed bug, cockroach, and general pest inspection history and outcomes
ACRIS — Automated City Register Information System
Official siteProperty Deeds: Ownership history, sale transactions, and deed transfers
Liens and Encumbrances: Mortgages, mechanic's liens, and other financial claims against a property
Property Sales History: Recent and historical sale prices and transfer dates
NYC Rent Guidelines Board
Official siteRent Stabilisation Status: Whether a building contains rent-stabilised units and approximate unit counts
FDNY — Fire Department of New York
Official siteFDNY Inspections: Fire safety inspection records, violations, and compliance status by building
Sprinkler and Fire Safety Systems: Status of fire suppression and alarm systems
NYC Open Data Portal
Official siteMultiple Agency Datasets: Building Health X pulls from numerous additional datasets hosted on the NYC Open Data portal, updated daily by participating city agencies
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