How to Find Who Owns a Building in NYC (2026): 6 Methods, from Free ACRIS to the Person Behind the LLC

Finding who owns a New York City building should be one lookup. For most of the city’s ~859,000 lots it isn’t, because the name on the deed is usually a shell. Below are the six public sources that get you from an address to a real person, what each one gives you, and the point where each one quits.

Why finding an NYC owner is hard

Most NYC commercial property is held inside LLCs, often stacked a few layers deep, set up so the public record shows a company instead of a person. The beneficial owner, the person who actually controls the building and takes the profit, rarely shows up on any one document. The registered agent you can find is usually a law firm or a filing service, there to receive legal notices. It isn’t the owner. New York keeps no public list of the people behind commercial LLCs, so you have to rebuild that link yourself.

Method 1: ACRIS, the deed registry

ACRIS is where you start. It’s the city’s register of deeds and mortgages, run by the Department of Finance. Search an address or a BBL and you get the recorded chain of sales and loans, including the current buyer of record. It’s free, and it’s the authoritative record of who legally owns the lot.

The catch is that the buyer is almost always an LLC, something like “123 Main Street Holdings LLC.” ACRIS confirms the entity owns the building. It says nothing about who owns the entity. And when a mortgage is recorded under MERS as nominee, the real lender is hidden the same way.

Method 2: the NY Department of State

Take the LLC name from ACRIS and search the New York Department of State Division of Corporations. For a New York LLC you’ll get the formation date, the address set for service of process, and sometimes a named officer or member.

This is where most manual searches stall. New York doesn’t make LLCs name their members, so the result is often just an address, and the address is frequently the same registered-agent service that hundreds of other LLCs use. If the entity was formed in Delaware, which is common, the public record gives you almost nothing at all.

Method 3: HPD registration

For residential and mixed-use buildings, HPD registration is the surest way to a real name. Owners of most residential buildings have to register every year and list a head officer and a managing agent, with actual names and addresses attached. A building that’s a dead end in ACRIS and DOS will often hand you a person right here.

It only helps where there’s a residential component, though. A pure office, retail, or industrial building doesn’t register with HPD. And the registration can lag, or name a managing agent standing in for the principal.

Method 4: DOB permits and DOF tax records

Department of Buildings permit filings name an owner, and often the person who signed for the owner, which can surface a principal or a representative who keeps showing up. Department of Finance tax records give you the owner of record and a mailing address. That mailing address is the useful part: it often points at the management company or family office that really runs the portfolio, even when the deed itself is an anonymous LLC.

On their own these still name the entity, not the person. Their value is in the pattern. When the same mailing address turns up across a dozen different LLCs, you’ve started to map a portfolio that was meant to look unrelated.

Method 5: court and mortgage records

Most people skip this one, and it’s often the best. When a building gets litigated or financed, the human surfaces. Court filings on NYSCEF and at the county clerks, foreclosures, lis pendens, partnership fights, routinely name the individual principals. Even better, a commercial mortgage almost always comes with a personal guaranty, and that guaranty names the person standing behind the loan. A building in trouble is a building whose owner is sitting in a court file.

The limit is obvious: it only works when there’s a lawsuit or recorded financing to read, and pulling the names means actually reading the documents.

Method 6: resolve the LLC to the person

Methods 1 through 5 are the workflow, and the dead ends, you hit doing this by hand for a single building. DeedGraph runs that same workflow across the whole city. It joins ACRIS deeds, DOS officer filings, HPD registrations, DOB permits, DOF mailing addresses, and tax warrants into one ownership graph, then follows the LLC to the named person and shows the source record behind every link, so you can check the chain. Where the manual trail dies at a Delaware shell, the cross-source joins often still get there.

That’s the gap between a free records hunt and a resolved, auditable answer: the same public sources, joined for you, at the scale of the whole city. You can see how that stacks up against PropertyShark and Reonomy, or read the methodology for how the joins and citations actually work.

FAQ

Can I find an NYC building owner for free?

You can. ACRIS, the NY Department of State search, HPD registration lookup, DOB and DOF records, and NYSCEF court records are all free. Free gets you the LLC and a lot of manual cross-referencing. It rarely walks you straight to the person without real effort.

Why does the deed only show an LLC?

Owners use LLCs for liability protection and privacy, and New York doesn’t require the members to be listed. So the LLC is the legal owner on paper, and the beneficial owner is the person behind it you have to find.

What’s the fastest route to the actual person?

For residential or mixed-use, HPD registration is usually quickest. For commercial, court files and mortgage guaranties hold the most. To skip the joins, a resolution tool that runs the sources together returns the person, and the citations, in one step.