Property and parcel data forms the foundational layer of the real estate data stack. It describes the physical and legal characteristics of a land parcel or building: lot boundaries, building footprint, square footage, number of units, year built, construction type, and legal description. This data is sourced primarily from county assessors and GIS departments, then standardized by private aggregators. It is the starting point for virtually every downstream use case — from valuation and investment to insurance and urban planning.
3 of 3 sources shown
3 available sources
| Description | Data | Open | |||||||
|---|---|---|---|---|---|---|---|---|---|
domain | British Columbia property assessment data, property search, and data products. | BC Assessment | Public | Property & Parcel Data | Assessed valuesProperty identifiersLegal descriptions+2 | Free | — | View | |
location_on | Open building footprint and attribute database compiled by Statistics Canada. | Statistics Canada | Public | Property & Parcel Data | Building footprintsBuilding attributesGeospatial files+1 | Free | — | View | |
location_on | Canadian parcel boundary data available through bulk, API, and geospatial delivery options. | Regrid | Private | Property & Parcel Data | Parcel boundariesParcel attributesGeospatial layers+1 | Paid | API | View |
Showing 1-3 of 3
ATTOM Data
Comprehensive property characteristics, tax, deed, and mortgage data for 158M+ US properties.
Regrid
Standardized parcel boundaries and attributes for 155M+ parcels nationwide.
CoreLogic (Cotality)
Enterprise property data covering characteristics, ownership, and transaction history.
County assessors are the authoritative source but vary widely in data quality and access. Private aggregators like ATTOM and Regrid standardize these records into consistent, API-accessible formats.
The Assessor Parcel Number (APN) is the primary key for linking property datasets. Format varies by county — always normalize before joining datasets.