Open ViolationsA public record project
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Guides

Plain-language explanations of the records on this site: what each violation class means, which agency does what, what a Local Law filing is, and what a tenant or owner can actually do next. 17 guides. Plain English, not legal advice.

All guides (17)Violations 101 (5)Lookups (3)By agency (2)Local Laws (2)For tenants (3)For landlords (2)

Lookups

Find any record (3 guides)
How to look up NYC building violationsEvery route to a building's record: this site, the agency systems behind it, and what each one shows.2 min · updated August 2026What is a BIN? NYC's building ID, explainedThe seven-digit number that pins down a structure when addresses cannot, and how to find yours.2 min · updated August 2026BIS, DOB NOW, HPD Online: where the records liveThree city systems, three slices of the record. Which one answers which question, and what only exists in the old one.2 min · updated August 2026

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