ATTOM · Controlled Vocabulary

Attomdata Vocabulary

Operational and capability vocabulary for the ATTOM property-data platform.

29 Terms 2 Groups Updated 2026-05-25
View Vocabulary File View on GitHub

ATTOM Vocabulary is a controlled vocabulary published by ATTOM on the APIs.io network, defining 29 terms.

The terms are organized into 2 groups — domains and capabilities.

Defined terms include Property, Assessment, Sale, AVM, and Mortgage.

A controlled vocabulary pins the words an API’s schemas, parameters and documentation use to one agreed definition each — the shared language a human or an agent needs to read the API the same way its authors do.

Term Groups

domains 10 capabilities 19

Terms

Property property
Core property characteristics, identifiers, and ownership.
Assessment assessment
Tax assessment values, taxes paid, exemptions.
Sale sale
Sales transactions, deed records, and pricing.
AVM avm
Automated Valuation Model outputs.
Mortgage mortgage
Mortgage and lien records.
Foreclosure foreclosure
Pre-foreclosure and foreclosure status.
Building Permits permits
Building, renovation, and construction permits.
Geography geography
Geographic identifiers and boundary metadata.
Community community
Neighborhood community attributes.
Points of Interest poi
Business and POI categorization.
Property Detail property-detail
Look up a property by AttomID or address.
Assessment History assessment-history
Multi-year assessed-value and tax history.
Sales History sales-history
Ten-year sales transaction history.
Current AVM avm-current
ATTOM AVM point estimate with confidence band.
AVM History avm-history
Historical AVM valuations across multiple as-of dates.
Rental AVM rental-avm
Estimated monthly rent.
Home Equity home-equity
Estimated home equity (AVM minus loans).
Comparable Sales comparable-sales
Subject-property comps for valuation and underwriting.
All Events all-events
Combined assessment + AVM + sales events.
Pre-Foreclosure pre-foreclosure
Notice of default and lis pendens status.
Building Permits building-permits
Permit records by property.
School Assignment school-assignment
Assigned schools and district by property.
Transportation Noise transportation-noise
Road, air, and rail noise score by property.
Boundary Detail boundary-detail
GeoJSON polygons by geoIdV4.
Hierarchy Lookup hierarchy-lookup
Geographic hierarchy resolution by lat/lon.
Location Lookup (v4) location-lookup-v4
Resolve any geoIdV4 to its location record.
POI Search poi-search
POI search by point or address.
Community Profile community-profile
Neighborhood demographics, crime, weather, commute.
Parcel Tiles parcel-tiles
Vector parcel tiles for web/mobile maps.

Controlled Vocabulary

Raw ↑ 
specification: API Commons Vocabulary
specificationVersion: '0.1'
provider: ATTOM
providerId: attomdata
created: '2026-05-25'
modified: '2026-05-25'
description: Operational and capability vocabulary for the ATTOM property-data platform.
sources:
  - https://api.developer.attomdata.com/docs
  - https://www.attomdata.com/glossary/

domains:
  - id: property
    name: Property
    description: Core property characteristics, identifiers, and ownership.
    terms:
      - attomid
      - apn
      - fips
      - parcel
      - sfr
      - condo
      - multi-family
      - propertyType
      - propertySubType
      - landUse
      - absenteeOwner
      - corporateOwner
      - mailingAddress
  - id: assessment
    name: Assessment
    description: Tax assessment values, taxes paid, exemptions.
    terms:
      - assessedValue
      - marketValue
      - appraisedValue
      - taxAmount
      - taxYear
      - exemption
      - improvementValue
      - landValue
  - id: sale
    name: Sale
    description: Sales transactions, deed records, and pricing.
    terms:
      - saleAmount
      - saleDate
      - deedType
      - warrantyDeed
      - grantDeed
      - quitClaimDeed
      - armsLength
      - distressedSale
      - reoSale
      - pricePerSquareFoot
      - salesHistory
      - salesTrend
      - comparableSales
      - comps
  - id: avm
    name: AVM
    description: Automated Valuation Model outputs.
    terms:
      - avm
      - attomAvm
      - confidenceScore
      - fsdScore
      - valueRange
      - rentalAvm
      - homeEquity
  - id: mortgage
    name: Mortgage
    description: Mortgage and lien records.
    terms:
      - mortgageAmount
      - mortgageDate
      - mortgageLender
      - interestRate
      - loanTerm
      - trustDeed
      - firstMortgage
      - juniorMortgage
      - lienHolder
  - id: foreclosure
    name: Foreclosure
    description: Pre-foreclosure and foreclosure status.
    terms:
      - preforeclosure
      - noticeOfDefault
      - lisPendens
      - trusteeSale
      - foreclosureAuction
      - reo
  - id: permits
    name: Building Permits
    description: Building, renovation, and construction permits.
    terms:
      - buildingPermit
      - permitType
      - permitStatus
      - jobValue
      - issueDate
  - id: geography
    name: Geography
    description: Geographic identifiers and boundary metadata.
    terms:
      - geoIdV4
      - cbsa
      - county
      - state
      - neighborhood
      - zip
      - censusTract
      - schoolDistrict
      - geographyTypeAbbreviation
  - id: community
    name: Community
    description: Neighborhood community attributes.
    terms:
      - demographics
      - population
      - households
      - medianHouseholdIncome
      - ownerOccupiedPercent
      - renterOccupiedPercent
      - crimeIndex
      - violentCrimeIndex
      - propertyCrimeIndex
      - schoolRating
      - commuteTime
      - weatherProfile
  - id: poi
    name: Points of Interest
    description: Business and POI categorization.
    terms:
      - poi
      - lineOfBusiness
      - industry
      - category
      - businessName
      - distance

capabilities:
  - id: property-detail
    name: Property Detail
    description: Look up a property by AttomID or address.
  - id: assessment-history
    name: Assessment History
    description: Multi-year assessed-value and tax history.
  - id: sales-history
    name: Sales History
    description: Ten-year sales transaction history.
  - id: avm-current
    name: Current AVM
    description: ATTOM AVM point estimate with confidence band.
  - id: avm-history
    name: AVM History
    description: Historical AVM valuations across multiple as-of dates.
  - id: rental-avm
    name: Rental AVM
    description: Estimated monthly rent.
  - id: home-equity
    name: Home Equity
    description: Estimated home equity (AVM minus loans).
  - id: comparable-sales
    name: Comparable Sales
    description: Subject-property comps for valuation and underwriting.
  - id: all-events
    name: All Events
    description: Combined assessment + AVM + sales events.
  - id: pre-foreclosure
    name: Pre-Foreclosure
    description: Notice of default and lis pendens status.
  - id: building-permits
    name: Building Permits
    description: Permit records by property.
  - id: school-assignment
    name: School Assignment
    description: Assigned schools and district by property.
  - id: transportation-noise
    name: Transportation Noise
    description: Road, air, and rail noise score by property.
  - id: boundary-detail
    name: Boundary Detail
    description: GeoJSON polygons by geoIdV4.
  - id: hierarchy-lookup
    name: Hierarchy Lookup
    description: Geographic hierarchy resolution by lat/lon.
  - id: location-lookup-v4
    name: Location Lookup (v4)
    description: Resolve any geoIdV4 to its location record.
  - id: poi-search
    name: POI Search
    description: POI search by point or address.
  - id: community-profile
    name: Community Profile
    description: Neighborhood demographics, crime, weather, commute.
  - id: parcel-tiles
    name: Parcel Tiles
    description: Vector parcel tiles for web/mobile maps.