Property records from many jurisdictions, one schema.

Assessors, GIS shops, and cadastres all publish parcels — none share a format. PlatMint normalizes them into one JSON shape. When a market does not publish a field, you get null and field_available: false.

141,627,506: parcels across covered markets
33: jurisdictions
1: schema

Sample response

One parcel, one schema.

Universal fields are always present. Jurisdiction-specific fields stay on the object: a value when the market publishes them, null and field_available: false when they do not.

GET https://api.platmint.com/v1/parcels?address=123%20Main%20St,%20Hartford,%20CT

Authorization: Bearer pt_live_••••••••

bedrooms is 3. field_available.bedrooms is true.

{
  "parcel_id": "us-ct:09-123-456",
  "jurisdiction": "us-ct",
  "geometry": {
    "type": "Polygon",
    "coordinates": [
      [
        [
          -72.673,
          41.765
        ],
        [
          -72.671,
          41.765
        ],
        [
          -72.671,
          41.763
        ],
        [
          -72.673,
          41.763
        ],
        [
          -72.673,
          41.765
        ]
      ]
    ]
  },
  "lot_size_sqft": 8712,
  "building_area_sqft": 1840,
  "year_built": 1924,
  "stories": 2,
  "land_use": "single_family",
  "assessed_value_usd": 287400,
  "bedrooms": 3,
  "bathrooms": 1.5,
  "roof": null,
  "heating": "gas",
  "basement": true,
  "condition": "average",
  "grade": null,
  "field_available": {
    "parcel_geometry": true,
    "lot_size": true,
    "building_area": true,
    "year_built": true,
    "stories": true,
    "land_use": true,
    "assessed_value": true,
    "bedrooms": true,
    "bathrooms": true,
    "roof": false,
    "heating": true,
    "basement": true,
    "condition": true,
    "grade": false
  }
}

bedrooms is null. field_available.bedrooms is false. Same schema.

{
  "parcel_id": "us-mt:41-98-00421",
  "jurisdiction": "us-mt",
  "geometry": {
    "type": "Polygon",
    "coordinates": [
      [
        [
          -111.042,
          45.678
        ],
        [
          -111.04,
          45.678
        ],
        [
          -111.04,
          45.676
        ],
        [
          -111.042,
          45.676
        ],
        [
          -111.042,
          45.678
        ]
      ]
    ]
  },
  "lot_size_sqft": 43560,
  "building_area_sqft": 2100,
  "year_built": 1978,
  "stories": 1,
  "land_use": "single_family",
  "assessed_value_usd": 312000,
  "bedrooms": null,
  "bathrooms": null,
  "roof": null,
  "heating": null,
  "basement": null,
  "condition": null,
  "grade": null,
  "field_available": {
    "parcel_geometry": true,
    "lot_size": true,
    "building_area": true,
    "year_built": true,
    "stories": true,
    "land_use": true,
    "assessed_value": true,
    "bedrooms": false,
    "bathrooms": false,
    "roof": false,
    "heating": false,
    "basement": false,
    "condition": false,
    "grade": false
  }
}

Who it's for

Teams that need assessor truth in product code.

Same schema whether you score collaterals, map parcels, or ship proptech features — coverage stays honest.

FAQ

Straight answers before you integrate.

Coverage, licensing, and refresh are per market — not nationwide promises. If something is thin or restricted, we say so.

Why isn't every US county here?+

Because nationwide coverage is county-by-county licensing and joins — not a single file we can pretend exists. The coverage table is the product surface. If a market is missing, use the form and we will tell you whether we can add it.

Do you skip-trace or sell owner phone numbers?+

No. Owner names and mailing addresses appear only where the assessor or cadastre publishes them. We do not append mobile numbers, emails, or credit headers.

One schema — what happens when a county has no bedrooms?+

The field stays on the object. The value is null and field_available is false for that field. You write one parser — no special cases for Connecticut vs Virginia vs the Netherlands. The sample response is the contract.

Can I redistribute this, or put it in a product my customers see?+

It depends on the market. Licence status is on every coverage row: open, attribution required, licensed, or restricted. Your API terms will spell out in-product use vs reselling a competing dataset. A public GIS download is not automatically a bulk-resale grant — see Data Sources for each publisher.

How far back does history go?+

This is a current assessor / cadastre snapshot, plus whatever prior assessment years that source publishes. Often one roll, sometimes several. It is not a title plant or deed history. If you need recorded documents or chain of title, say so on the form.

What do you guarantee on refresh?+

Cadence is per market — see the Refresh column. We ingest after the source posts an update. If a county publishes annually, we are annual. There is no SLA that this matches an unpublished local edit.

Fields

What every record includes — and what varies by market.

Click a field to filter coverage to markets that publish it.

On every market

Always in the schema, populated from the source.

Jurisdiction-specific

Same keys everywhere. Null + field_available: false when missing.

Coverage

Markets we cover today.

33 jurisdictions. Licence and refresh are per row — check before you build.

33 markets

Jurisdiction	Level	Available fields	Licence	Refresh	Notes
Connecticutbeds+baths	US statewide	12	Open	annual	Statewide parcel + CAMA join. Canaan has geometry without CAMA.
Massachusettsbeds+baths	US statewide	12	Attribution	annual	MassGIS standardized parcels; CAMA completeness varies by town.
Rhode Islandbeds+baths	US statewide	11	Open	annual	RIGIS statewide parcels with municipal assessor attributes.
Vermont	US statewide	8	Open	annual	VCGI grand list parcels. Beds/baths are not in the statewide join.
Mainebeds+baths	US statewide	9	Attribution	annual	Municipal parcel mosaic. Attribute depth follows town CAMA.
New Hampshirebeds+baths	US statewide	9	Attribution	annual	GRANIT / municipal mosaic. Not every town publishes beds.
New Yorkbeds+baths	US statewide	13	Attribution	annual	NYS GIS tax parcels. NYC is also listed as its own county-level row.
New Jerseybeds+baths	US statewide	11	Attribution	annual	MOD-IV / statewide parcels. Building fields follow municipal CAMA.
Marylandbeds+baths	US statewide	12	Attribution	annual	SDAT / MDP statewide property view.
Delawarebeds+baths	US statewide	9	Open	annual	FirstMap statewide parcels.
Virginia	US statewide	7	Attribution	annual	VGIN statewide parcels. Building characteristics are local, not in the state layer.
North Carolina	US statewide	7	Attribution	annual	NC OneMap parcels. Assessor fields are county-by-county.
South Carolina	US statewide	7	Attribution	annual	Statewide parcel geometry; CAMA join is incomplete.
Florida	US statewide	7	Attribution	quarterly	Statewide tax-roll parcels. Beds/baths are not on the statewide schema.
Montana	US statewide	7	Open	annual	Cadastral parcels. Building area / year built sparse outside cities.
Utah	US statewide	7	Open	annual	AGRC statewide parcels.
Oregon	US statewide	7	Attribution	annual	GEO / county mosaic. Building fields are not statewide.
Washington	US statewide	7	Attribution	annual	Statewide parcel fabric. King County is listed separately with richer CAMA.
Indiana	US statewide	7	Attribution	annual	IGIC / county parcel mosaic.
Minnesota	US statewide	7	Attribution	annual	MnGeo parcels. Metro counties publish more CAMA than Greater Minnesota.
Cook County, ILbeds+baths	US county	12	Attribution	annual	Assessor CAMA + parcel polygons.
Los Angeles County, CAbeds+baths	US county	11	Attribution	weekly	Assessor portal extracts. Licence is attribution, not a bulk resale grant.
Harris County, TXbeds+baths	US county	10	Open	weekly	HCAD public extracts.
King County, WAbeds+baths	US county	13	Open	weekly	Open data CAMA is among the richest county extracts we ship.
Miami-Dade County, FLbeds+baths	US county	10	Attribution	monthly	County GIS + property appraiser. Statewide FL row does not include beds.
Maricopa County, AZbeds+baths	US county	10	Open	weekly	Assessor open data.
New York City, NYbeds+baths	US county	13	Attribution	monthly	PLUTO / MapPLUTO. Tax lots, not a full CAMA beds file for every class.
Fulton County, GAbeds+baths	US county	9	Attribution	annual	County GIS parcels with residential CAMA on improved lots.
England & Wales	International	7	Attribution	quarterly	INSPIRE index polygons. This is cadastral geometry, not UK Energy Performance beds.
Netherlands	International	8	Attribution	monthly	BAG / PDOK. Dwellings, not US-style bedroom counts.
New Zealand	International	7	Attribution	monthly	LINZ NZ Parcels. Building attributes are a separate layer.
Ireland	International	7	Attribution	annual	Tailte Éireann / OSI cadastral parcels.
France	International	7	Open	annual	PCI / cadastre Etalab. Parcels, not logements.

Connecticutbeds+baths
US statewide · Open · annual
Statewide parcel + CAMA join. Canaan has geometry without CAMA.
12 fields in schema
Massachusettsbeds+baths
US statewide · Attribution · annual
MassGIS standardized parcels; CAMA completeness varies by town.
12 fields in schema
Rhode Islandbeds+baths
US statewide · Open · annual
RIGIS statewide parcels with municipal assessor attributes.
11 fields in schema
Vermont
US statewide · Open · annual
VCGI grand list parcels. Beds/baths are not in the statewide join.
8 fields in schema
Mainebeds+baths
US statewide · Attribution · annual
Municipal parcel mosaic. Attribute depth follows town CAMA.
9 fields in schema
New Hampshirebeds+baths
US statewide · Attribution · annual
GRANIT / municipal mosaic. Not every town publishes beds.
9 fields in schema
New Yorkbeds+baths
US statewide · Attribution · annual
NYS GIS tax parcels. NYC is also listed as its own county-level row.
13 fields in schema
New Jerseybeds+baths
US statewide · Attribution · annual
MOD-IV / statewide parcels. Building fields follow municipal CAMA.
11 fields in schema
Marylandbeds+baths
US statewide · Attribution · annual
SDAT / MDP statewide property view.
12 fields in schema
Delawarebeds+baths
US statewide · Open · annual
FirstMap statewide parcels.
9 fields in schema
Virginia
US statewide · Attribution · annual
VGIN statewide parcels. Building characteristics are local, not in the state layer.
7 fields in schema
North Carolina
US statewide · Attribution · annual
NC OneMap parcels. Assessor fields are county-by-county.
7 fields in schema
South Carolina
US statewide · Attribution · annual
Statewide parcel geometry; CAMA join is incomplete.
7 fields in schema
Florida
US statewide · Attribution · quarterly
Statewide tax-roll parcels. Beds/baths are not on the statewide schema.
7 fields in schema
Montana
US statewide · Open · annual
Cadastral parcels. Building area / year built sparse outside cities.
7 fields in schema
Utah
US statewide · Open · annual
AGRC statewide parcels.
7 fields in schema
Oregon
US statewide · Attribution · annual
GEO / county mosaic. Building fields are not statewide.
7 fields in schema
Washington
US statewide · Attribution · annual
Statewide parcel fabric. King County is listed separately with richer CAMA.
7 fields in schema
Indiana
US statewide · Attribution · annual
IGIC / county parcel mosaic.
7 fields in schema
Minnesota
US statewide · Attribution · annual
MnGeo parcels. Metro counties publish more CAMA than Greater Minnesota.
7 fields in schema
Cook County, ILbeds+baths
US county · Attribution · annual
Assessor CAMA + parcel polygons.
12 fields in schema
Los Angeles County, CAbeds+baths
US county · Attribution · weekly
Assessor portal extracts. Licence is attribution, not a bulk resale grant.
11 fields in schema
Harris County, TXbeds+baths
US county · Open · weekly
HCAD public extracts.
10 fields in schema
King County, WAbeds+baths
US county · Open · weekly
Open data CAMA is among the richest county extracts we ship.
13 fields in schema
Miami-Dade County, FLbeds+baths
US county · Attribution · monthly
County GIS + property appraiser. Statewide FL row does not include beds.
10 fields in schema
Maricopa County, AZbeds+baths
US county · Open · weekly
Assessor open data.
10 fields in schema
New York City, NYbeds+baths
US county · Attribution · monthly
PLUTO / MapPLUTO. Tax lots, not a full CAMA beds file for every class.
13 fields in schema
Fulton County, GAbeds+baths
US county · Attribution · annual
County GIS parcels with residential CAMA on improved lots.
9 fields in schema
England & Wales
International · Attribution · quarterly
INSPIRE index polygons. This is cadastral geometry, not UK Energy Performance beds.
7 fields in schema
Netherlands
International · Attribution · monthly
BAG / PDOK. Dwellings, not US-style bedroom counts.
8 fields in schema
New Zealand
International · Attribution · monthly
LINZ NZ Parcels. Building attributes are a separate layer.
7 fields in schema
Ireland
International · Attribution · annual
Tailte Éireann / OSI cadastral parcels.
7 fields in schema
France
International · Open · annual
PCI / cadastre Etalab. Parcels, not logements.
7 fields in schema

Not seeing your market? Tell us.

Pricing

Usage-based, per market.

Tell us your markets for a quote — we price by the jurisdictions you need, not a one-size plan.

Request a quote

Need a market we list — or one we do not?

Share your email and markets. If we already cover one, you get its field list with the reply.

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Access

Request access for the markets you need.

Tell us your email, markets, and what you’re building. If a selected market is already covered, you get its field list on submit. Either way, we reply within one business day.