{ "openapi": "3.0.1", "info": { "title": "NY Property Assessments - Parcels, Owners & 5-Year Value Trail", "description": "New York property assessment rolls (public open data, 23.6M records, 2021-2025): every parcel with its owner, mailing address, exemptions and six value columns - plus each parcel's exact year-over-year value movement. 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The source currently carries 2021-2025. Defaults to the newest roll available. Leave blank for the default." }, "maxResults": { "title": "Max results", "minimum": 0, "type": "integer", "description": "Maximum records to return. Default 50; 0 is treated as the default rather than as all records.", "default": 50 }, "county": { "title": "County", "enum": [ "Albany", "Allegany", "Broome", "Cattaraugus", "Cayuga", "Chautauqua", "Chemung", "Chenango", "Clinton", "Columbia", "Cortland", "Delaware", "Dutchess", "Erie", "Essex", "Franklin", "Fulton", "Genesee", "Greene", "Hamilton", "Herkimer", "Jefferson", "Lewis", "Livingston", "Madison", "Monroe", "Montgomery", "Nassau", "Niagara", "Oneida", "Onondaga", "Ontario", "Orange", "Orleans", "Oswego", "Otsego", "Putnam", "Rensselaer", "Rockland", "St Lawrence", "Saratoga", "Schenectady", "Schoharie", "Schuyler", "Seneca", "Steuben", "Suffolk", "Sullivan", "Tioga", "Tompkins", "Ulster", "Warren", "Washington", "Wayne", "Westchester", "Wyoming", "Yates" ], "type": "string", "description": "One of the 57 New York counties on the rolls. New York City's five boroughs file separately and are NOT in this dataset." }, "ownerName": { "title": "Owner name", "type": "string", "description": "Partial name match across the primary owner and the three additional owner slots (last and first names). '%' and '_' are not allowed." }, "address": { "title": "Parcel street", "type": "string", "description": "Partial street-name match on the parcel address." }, "mailingState": { "title": "Owner mailing state", "type": "string", "description": "Two-letter state on the owner's mailing address. 'NY' is the default for a resident owner; any other value finds owners who live elsewhere." }, "mailingCity": { "title": "Owner mailing city", "type": "string", "description": "Partial city match on the owner's mailing address." }, "mailingZip": { "title": "Owner mailing ZIP", "type": "string", "description": "ZIP prefix match on the owner's mailing address. Digits and dashes only." }, "mailingCountry": { "title": "Owner mailing country", "type": "string", "description": "Partial country match on the owner's mailing address." }, "municipality": { "title": "Municipality", "type": "string", "description": "Partial city or town name." }, "municipalityCode": { "title": "Municipality code", "type": "string", "description": "Exact municipality code (6 digits)." }, "swisCode": { "title": "SWIS code", "type": "string", "description": "Exact SWIS code of the municipality (6 digits)." }, "schoolDistrict": { "title": "School district", "type": "string", "description": "Partial school district name." }, "propertyClass": { "title": "Property class code", "type": "string", "description": "Exact NY property class code, 1-3 digits (210 = one family year-round residence, 311 = residential vacant land). Note: the aggregate mode's propertyClass dimension groups by the class DESCRIPTION, not this code." }, "propertyClassDescription": { "title": "Property class description", "type": "string", "description": "Partial match on the property class description." }, "taxClass": { "title": "Tax class", "enum": [ "1", "2", "3", "4", "5", "6", "7", "8", "H", "N", "S" ], "type": "string", "description": "Exact tax class code, used only in municipalities that assess by class (1-8 = the assessment class, H = homestead, N = non-homestead, S = special). The source documents the code but not the individual class meanings, so prefer `propertyClass`/`propertyClassDescription` when you need to identify a property type. The field is blank on 76% of rows." }, "rollSection": { "title": "Roll section", "enum": [ "0", "1", "3", "5", "6", "7", "8", "9" ], "type": "string", "description": "Which section of the assessment roll the parcel sits on (source's own legend): 1 = ordinary taxable property, including partially exempt; 3 = taxable State-owned land; 5 = special franchise (utility property on public rights-of-way); 6 = utilities and non-ceiling railroads; 7 = ceiling railroads; 8 = wholly exempt property; 9 = other. 0 is the source's unset value. Sections 2 and 4 are not in use. Blank = any." }, "printKeyCode": { "title": "Parcel print key code", "type": "string", "description": "The parcel's print key code, exact match (used with swisCode to identify a single parcel)." }, "minMarketValue": { "title": "Min full market value", "minimum": 0, "type": "number", "description": "Lower bound on the full market value." }, "maxMarketValue": { "title": "Max full market value", "minimum": 0, "type": "number", "description": "Upper bound on the full market value." }, "minAssessment": { "title": "Min assessment", "minimum": 0, "type": "number", "description": "Lower bound on the total assessment." }, "maxAssessment": { "title": "Max assessment", "minimum": 0, "type": "number", "description": "Upper bound on the total assessment. A small cap finds parcels sitting under an exemption." }, "groupBy": { "title": "Group by (aggregate mode)", "enum": [ "county", "municipality", "municipalityCode", "schoolDistrict", "propertyClass", "taxClass", "rollSection", "rollYear" ], "type": "string", "description": "Dimension for the server-side count. Use only with mode=aggregate - supplying it in another mode is rejected rather than ignored." } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } } } } } } } } }