Every NYC property signal, in one place.
Search any address or BBL and get a complete due-diligence report in seconds — ownership, valuation, taxes, liens, violations, permits, zoning and more.
Ownership & Management
Identify the registered owner, holding LLC, and managing agent of any NYC building, with the registration contacts on file for the property.
Sales & Title Documents
Full deed and sale history with recorded mortgages and assignments — see who bought, sold, and financed the property and when.
Valuation & Assessment
Market value and assessed value with year-over-year history, tax class, and exemptions — how the city values the property.
Property Taxes & Liens
Annual tax levy, assessment, and rate history, plus any tax-lien-sale or water/sewer-debt flags signaling financial distress.
Housing Violations
Open and historical housing-maintenance violations — heat, hot water, mold, pests, lead, and habitability conditions on record.
Building Violations
Building and construction-code violations — illegal work, unsafe conditions, facade and elevator issues, and stop-work orders.
Enforcement & Penalties
Enforcement summonses, hearings, and monetary penalties — outstanding fines and the respondent named on each case.
Complaints
Tenant and building complaints over time — heat/hot-water outages, illegal construction, and unsafe-condition reports.
Permits & Construction
Construction permits, alteration filings, and job status — what work has been filed, approved, or completed at the property.
Litigation & Legal
Housing-court cases and legal proceedings against the owner — a major red flag when assessing investment risk.
Zoning & Land Use
Zoning district, overlays, land-use category, lot dimensions, and floor-area ratio (FAR) — what the lot is and what it allows.
Development & Air Rights
Buildable floor area, FAR used versus allowed, and unused development rights — gauge expansion and air-rights potential.
Occupancy & Units
Residential and commercial unit counts, building-area mix, number of floors, and year built — the physical makeup of the property.
Landmark & Historic
Individual-landmark and historic-district designation — whether status affects renovation, permits, and development plans.
Risk Profile
A composite read combining open violations, liens, litigation, and watch-list status into clear red-flag distress signals.
The data is public. Reading it correctly is the hard part.
Three things in a New York City property record mislead almost everyone who reads one for the first time. Here they are, before you search.
A $0 sale is not a bargain
Recorded transfers include deeds between family members, estate settlements and corrective filings — all legitimately recorded at $0 or a nominal $10. It does not mean the building was given away. It means there has been no arm's-length sale, and that every price ratio derived from it is meaningless.
A violation count means nothing until you divide it
We show open violations only — a closed one is a problem that got fixed, and every old building has hundreds. But even the open count is close to meaningless on its own. Three hundred open violations across three hundred apartments is a different building from three hundred across thirty. Divide by the units, then read the outstanding balance — a heavy count with no money attached means conditions are being reported and not corrected.
Spare floor area may not be buildable
Zoning sets a different limit for residential, commercial and community-facility use. Comparing a building against the highest number in that row — rather than the limit for the use you actually intend — is the most expensive mistake in this data. Buildings that look like they have room to grow are frequently already over their residential limit.
And the numbers no one publishes
Unused floor-area ratio. Buildable square footage. The direction assessed value has moved over the last decade. Price per unit against the last real sale. None of these exist in any public dataset — we calculate them, and we show the formula for every one.
Start here
We walk through one real building — a 1910 walk-up in upper Manhattan — and show exactly where its numbers mislead you, and what they actually say.