Updates March 1, 2026
178 commits since the last update. Most of it was under-the-hood accuracy work driven by your reports. Six new data sources, rebuilt scoring components, human-readable event details, and address-based URLs. Here's what's different now.
What You See
- Building events now show human-readable descriptions — instead of raw agency codes, you see what actually happened ("failed boiler inspection" not "DOB_VIOL_3A")
- Every event shows detailed breakdowns: violation class, apartment number, penalty amounts, hearing status, document types — previously hidden in raw city data
- Events are now color-coded by category: Violations, Complaints, Inspections, Permits, Legal, Financial, Health & Safety
- PDF reports now match what you see on the website — no more confusing mismatches between web and download
Finding Buildings
- Every building now has a clean URL based on its address — openstoop.com/building/85-bowery-manhattan instead of a 10-digit number
- Old links still work and automatically redirect to the new address-based URL
- Buildings with overdue elevator inspections are now flagged on the report
More Data
- Added elevator inspection records, ACRIS real estate transactions, and HPD owner/agent contact info
- Added 833,000 boiler registration records — you can now see if your building's boiler is registered and inspected
- Added DOF tax lien records, DOB facade inspection reports (FISP 7-year cycles), DHCR rent stabilization registry, and Certificates of Occupancy
- Building timelines now pull from 26 public data sources total — up from 20 at launch
- 311 complaints filtered to building-related issues only — citywide infrastructure problems no longer clutter your building's timeline
Scoring
- Major scoring update — we rebuilt how several components calculate building health, focusing on real evidence instead of penalizing buildings for missing data
- Buildings with no inspection history are no longer assumed to be neglected — silence from city agencies isn't the same as problems
- Small buildings (5 units or fewer) are now scored more fairly — they generate less city data by nature, not by neglect
- Over 10,000 buildings that were stuck at inflated grades due to stale city records have been corrected
- Buildings with open Class C violations (immediately hazardous — lead paint, no heat, structural danger) are now guaranteed to be flagged, regardless of what the rest of the data says
- Dismissed violations no longer count against your building — if a complaint was cleared, it's cleared
- Lead and mold complaints from 311 are now properly weighted — they were being silently ignored before
- Grade accuracy validated at 98.3% against NYC's official worst-buildings list (HPD Alternative Enforcement Program)
Latest update: March 17, 2026 →
OpenStoop scores 858,000+ residential buildings across all five boroughs using public data from 26 sources including HPD, DOB, ECB, DOF, ACRIS, and 311. Our scoring methodology is transparent and continuously improving. Read our methodology