Building intelligence,
redefined.
OpenStoop is a comprehensive platform for understanding the health, safety, and condition of multifamily buildings across New York City.
Our Mission
We believe building condition data should be clear, comprehensive, and instantly accessible. OpenStoop transforms fragmented, complex records into a single comprehensive score that anyone can understand.
We combine NYC public building data with a transparent scoring methodology to turn fragmented records into one clear grade.
Whether you're evaluating an apartment, monitoring a property portfolio, or investigating housing conditions — OpenStoop gives you the full picture in seconds.
Why OpenStoop Exists
- →Building data is scattered across dozens of siloed systems
- →Raw records use opaque codes and technical jargon
- →No existing tool offers cross-source comparison or scoring
- →Critical safety signals get buried in bureaucratic noise
Platform Coverage
Our Approach
Our proprietary scoring methodology synthesizes 26 data sources into a single, interpretable building health grade.
Our algorithm weighs severity, recency, and resolution status across every data dimension — not just raw counts. The result is a nuanced, context-aware assessment.
Buildings are compared against similar properties by size, age, and type — ensuring fair, meaningful grades that reflect actual performance relative to peers.
Scores are recalculated daily as new public data is published — providing an up-to-date view of building health rather than a static snapshot.
Every scored building includes a detailed event timeline — violations, permits, complaints, sales, and inspections — in a single chronological view.
How We're Different
Every score is backed by comprehensive, verifiable records — not crowdsourced reviews or anecdotal reports. Our analysis is rigorous and reproducible.
No hunting through dozens of databases. Get a single, easy-to-understand health grade backed by a detailed component breakdown.
Our pipeline ingests new public data daily, so scores reflect the latest available records.
Get in Touch
Questions about our methodology? Interested in API access or enterprise partnerships?
General Inquiries
Questions, feedback, or partnership opportunities
Data Issues
Report data discrepancies or technical issues
Press & Media
Media inquiries and interview requests