Mimir
01The record

The data is the product.

Everything else on this site is a way of asking a question of one asset: 160 million resolved records, drawn from 127+ free government sources, with the document behind every field.

Canonical buildings
22.0M

One record per real building, after block-and-lot, parcel number and document id have been collapsed into a single id.

6.23M
New York
4.60M
New Jersey
11.18M
Florida
Violations
37.5M
Code enforcement actions attached to buildings
Deeds
32.0M
Recorded conveyances with grantor and grantee
Sales
29.8M
Transfers with consideration and date
Owner records
21.4M
Every one carrying a source and a field-level map
Distress events
13.7M
Liens, foreclosures, tax delinquency, vacate orders
Mortgages
8.0M
Recorded debt, assignments and satisfactions
Controllers
486K
People resolved behind 387K holding companies
Sources
127+
Government offices feeding the corpus, all of them free and public
02What makes it different

Anyone can download the records. Nobody else resolves them.

The same building is a block-and-lot in one system, a parcel number in another, a document id in a third. The same person is a dozen spellings across a dozen entities. Mimir collapses all of it to one canonical record per real thing — deterministically, so the same inputs always produce the same answer.

Then every field keeps a pointer back to the government document that produced it. That is the part you cannot get anywhere else, and it is why an answer here can be checked instead of trusted.

441 Vanderpool Street, Brooklyn, NY 11215synthetic
Ownership chain
Block 1042 · Lot 17 · 12 units · built 1928
  1. Owner of record
    VANDERPOOL HOLDINGS LLC
    Deed recorded 2019-04-11nyc_acris
  2. Controlled by
    HARROW STREET CAPITAL LLC
    Shared registered agent + mailing addressny_dos_corps 0.82
  3. Ultimate controller
    A. Reyes
    DOS process address across 6 entitiesny_dos_corps 0.74
The receipt
ACRIS 2019041100428001
Source
nyc_acris
Document type
DEED
Recorded
2019-04-11
Grantor
ESTATE OF M. OKONKWO
Grantee
VANDERPOOL HOLDINGS LLC
Consideration
$2,150,000

Every value on the left opens a record like this. Nothing is asserted without one.

03What is in it

Eight record families, one spine.

Conveyance

Deeds, transfers, consideration, grantor and grantee

County recorders
Debt

Mortgages, assignments, satisfactions, recorded amounts and dates

County recorders
Encumbrance

Mechanic’s liens, judgment liens, lis pendens

Recorders and courts
Distress

Foreclosure filings, tax delinquency, vacate orders

Courts, county, state
Assessment

Parcel characteristics, assessed value, exemptions

Assessors
Entity

Company status, registered agent, process address

Secretaries of State
Enforcement

Violations, complaints, enforcement actions

City agencies
Geometry

Parcel boundaries, so adjacency is computed not guessed

State and county GIS
04How it gets here

Free, public, and hard to use — which is the whole opportunity.

None of this is bought. Every record comes from an office that publishes it because it has to. The reason nobody has assembled it is that each source arrives in its own format, on its own schedule, with its own idea of what a building is called.

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paid data vendors in the pipeline
  1. 01Harvested at the source

    Directly from county recorders, assessors, courts and Secretaries of State — no aggregator sitting in the middle stripping provenance.

  2. 02Normalised, not flattened

    Every original value is kept alongside its normalised form, so a citation points at what the office actually wrote.

  3. 03Resolved deterministically

    Canonical ids are a pure function of the source records. Re-run it in a year and you get the same ids.

  4. 04Reconciled continuously

    New filings land against the same spine, so today’s answer and last quarter’s citation refer to the same building.

Ask us where a number came from.

Any field, any building in coverage. The answer is a document, not an explanation.