Public records, made readable
New York City publishes an enormous amount of housing data, but it's scattered across agencies and written in inspector shorthand. Roofy brings it together for every property in the five boroughs and explains it in plain English, so renters, buyers and neighbors can make better decisions.
We also run free home listings (no fees for anyone) and housing calculators. Roofy is free to use and supported by ads.
Where the data comes from
Every tax lot: address, owner of record, building class, year built, units, floors, zoning, assessed value.
Violations issued by HPD inspectors, with class (A/B/C), status and description.
Annual registrations that owners of 3+ unit buildings must file.
Construction, elevator, boiler and other building-code violations and fines.
Recorded property sales with price, date and building type.
How fresh is it?
We download each dataset from NYC Open Data every week. City systems can be ahead of the open data files, so a just-fixed problem may still show as open for a while. For anything legal or financial, confirm with the agency directly.
The Roofy building score
The score is a quick signal built only from HPD housing violations: how many there are per apartment, how many are still open, and how many are Class C (immediately hazardous). It isn't an inspection, a rating of the landlord, or a guarantee of anything.
Corrections
Records come from the city as-is. If something looks wrong, the fastest fix is to contact the agency that issued it, such as HPD for housing violations. Once they update their data, Roofy picks up the change in the next weekly refresh.