Every Manhattan office condo, from public record.

Registry totals: 639 buildings, 4,507 units, 38,326 recorded documents, 1972 to 2026, from ACRIS, the Digital Tax Map and the DOF assessment roll

A Manhattan broker can ask who owns 110 East 40th, what the units there last traded for and who has been buying this year, and get the answer from public record. We built it for brokers who specialize in Manhattan office condominiums. Behind it sits the whole segment: 639 buildings, 4,507 units, 38,326 recorded documents back to 1972.

All of it was already public, spread across three New York City systems never built to be read together. We assembled and joined it once and made it answerable in ordinary English.

It installs as a single Claude Desktop extension file (.mcpb) with the records inside: no database, no server, nothing to configure.

What a broker actually asks it.

Finding the call, and being ready for it.

Who should I call?

Owners come back ranked by what precedes a sale: how long they have held, what they paid, what else is in the portfolio.

Who is actually buying?

Every recorded purchase is in here, so when a unit comes up the shortlist of people who bought others like it already exists.

Owners you can reach.

A name alone is not actionable. The registry carries the rest.

3,321 mailable owners

Nearly three quarters of the registry resolves to an address confirmed against the city assessment roll, rather than assumed from the deed alone.

478 held in a real name

Most of the market sits behind an LLC. These units are owned in a person’s or institution’s own name, the shortest path from a building to a conversation.

Your market keeps its records in public too.

Every city publishes different facts and almost nobody reads them together. We find what yours holds and build the thing that answers from it.

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