The Best Ways to Check NYC Property Records
Researching a New York City property means piecing together its paper trail: who owns it, what is filed against it, and whether it carries open violations or liens. The city publishes most of this for free, but across several separate systems. Paid platforms and all-in-one aggregators promise to stitch it together for you. This guide walks through the main options, what each does well, and how to match the tool to your need.
Start with the free official systems
New York City runs the authoritative records itself, at no cost. ACRIS, the Automated City Register Information System, is the official record for recorded documents — deeds, mortgages, and liens. It is the source of truth for ownership and title history, though its interface is dated and records-only.
For buildings, the Department of Buildings holds permits, inspections, and violations. Newer filings live in DOB NOW, while older records remain in the read-only BIS archive. HPD Online, run by the Department of Housing Preservation and Development, covers residential housing-code violations, complaints, and registrations.
The strength here is authority and price: this is the primary source, and it is free. The trade-off is effort. A complete picture often means opening ACRIS, DOB, HPD, and ECB/OATH — the city's violation-hearings system — and stitching them together, which can take hours.
Paid professional platforms
A second tier of commercial platforms packages property data for professionals. PropertyShark is an established NYC and tri-state platform with genuine local depth — ownership information, comparable sales, and building data in one place.
CoStar is the largest US commercial real-estate data and analytics provider, strongest on national lease and sales comparables and market analytics; it is enterprise-priced and not focused on NYC regulatory data. Reonomy offers national commercial-property data along with owner-contact information and deal prospecting.
These tools are powerful, but they are built and priced for real-estate professionals — brokers, investors, and lenders — more than for a homeowner checking a single building. Their focus tends to be deals and market data rather than city compliance and violations.
All-in-one compliance aggregators
A third category sits between the two: aggregators that pull the official NYC records into a single building view. RegWatch NYC is one example — a tri-state compliance platform, deepest in NYC, that combines DOB, HPD, ECB/OATH, facade (FISP), ACRIS/title, liens, permits, and Certificate of Occupancy into one timeline, with a 0-100 Compliance Score.
The appeal is convenience and monitoring: instead of visiting several systems, you see one per-building record, and you can set alerts when something changes. You can run a basic search free at RegWatch's NYC property search; paid tiers add email monitoring, reports, and portfolio tools.
Aggregators do not replace the official systems — they gather from them. The convenience is real, but for anything critical the underlying city record remains the authority.
How to choose the right tool
The right choice depends on how often you look and how much you need. For a one-off question — who owns a building, or whether there is an open lien — the free city systems answer it directly, if you are willing to click through each one.
If you research properties for a living, a professional platform's comparables and market analytics may justify the cost. If you track buildings over time and want compliance and violations gathered in one place with alerts, an aggregator can save the hours that manual stitching takes. Side-by-side comparisons of these tools can help you weigh the trade-offs.
Many people mix approaches: an aggregator or paid platform for day-to-day monitoring, and the official systems to confirm anything that carries legal or financial weight.
Before you rely on any record
Public records can lag. Even data checked daily may trail an official filing by hours or days, and aggregated data can lag the source it copies. For anything time-sensitive, verify against the official agency directly.
Remember what these tools are. ACRIS, DOB, and HPD remain the authoritative sources; everything else aggregates or repackages them. None of these tools, official or commercial, is title insurance or a title commitment.
This is general information, not legal advice. For formal title work or a closing, use a licensed title company or a real-estate attorney.
Frequently asked questions
What is the best free way to check NYC property records?
The city's own systems. ACRIS covers deeds, mortgages, and liens; DOB (BIS and DOB NOW) covers permits and building violations; HPD Online covers residential housing-code issues. They are authoritative and free, but you have to check each one separately.
Is ACRIS enough on its own?
ACRIS is the record for recorded documents — ownership, mortgages, and liens — but it does not show building violations, permits, or housing complaints. For those you also need DOB and HPD, which is why many people use several systems or an aggregator.
Do I need a paid platform to research an NYC property?
Not for a one-off check — the free city systems cover ownership, permits, and violations. Paid platforms and aggregators mainly save time by gathering scattered records in one place and adding monitoring, comparables, or reports, which matters more if you research properties regularly.
How current is NYC property data?
It varies. Official systems update on their own schedules, and third-party tools that copy from them can lag by hours or days. Treat any record as a strong lead, and verify anything critical against the official agency before you act on it.
Can these tools replace a title search?
No. None of these tools is title insurance or a title commitment, and public records can be incomplete or delayed. For a purchase, refinance, or any formal title work, use a licensed title company or a real-estate attorney.