Property Data

Reliable. Comprehensive. Timely.

The most robust collection of U.S. property data including Assessor Tax Data, Legal Descriptions, Zoning Uses, Geocodes, Property Characteristics, House Size, Building Permits, Lot Size, Addresses, Interior and Exterior Features all compiled in one, easy to access data warehouse. Real Estate investors, financial institutions and more use detailed property data to better understand the overall picture of a property.

Detailed Property Data at Your Fingertips

Assessor Tax

Includes publicly available information compiled by county tax assessor offices. The best assortment of Assessor Data includes many details in the following categories: Property Identification, Ownership, Address, Legal Description, Values and Taxes, and Characteristics as made available by the county sources.


Provide searchability by physical location of most buildings, whether it be residential, commercial, land or other structures, to better identify boundaries, census-tracking, mail routing and more.

Property Legal Description

Gain valuable insight on a property’s county accepted description, outside of the property address. A property’s legal description contains information used to identify a specific parcel of land. The detailed information assists those in the industry to assure themselves in working with the correct property, as made available by the county sources.

Property Zoning

Local jurisdiction Zoning Codes from ATTOM feature classifications made available by the local (city or county) zoning, building and/or code enforcement departments for all property types, including residential, commercial, industrial, and agricultural. Zoning data assists in providing allowable uses when developing land.

Property Characteristics

Property characteristics nationwide that include: number of bedrooms/bathrooms, stories, lot area, sewer & electrical, building/living square footage, porch or balcony, garage details, heating and cooling details, interior and exterior construction materials, lot description details, and more.

Interior Features

Discover detailed primary interior features, such as number of bedrooms, bathrooms, year built, finished / unfinished basement and attic square footage and much more, as made available by the county sources.

Exterior Features

Exterior features data breaks out a property’s key components, such as fireplaces, garage type, roof, pool and spa details, and more, as made available by the county sources.

House Size

Better understand the building and living footage of residential, commercial, and industrial property types. This may include individual floor footages, along with attic and basement information, as made available by the county sources.

Lot Size

An important component of any property is an accurate lot size. If you are wanting to expand on a property with an outdoor shed, stand-alone garage or needing more detail, having an accurate property lot size is key.


A geocode is a set of coordinates, usually longitude and latitude, representing a specific physical location. Precise latitude/longitude coordinates for a property make mapping applications accurate. Address-based interpolation and Parcel-centroid methods are both ways geocoding is used to locate a parcel.

Building Permits

With residential and commercial data for over 200 million building permits from over 2,000 building departments nationwide, ATTOM’s building permit data is updated monthly with historical insight, detailed permit classifiers and covers 94% of the nation’s top cities.

Have Questions About Property Data?

How Can You Use ATTOM’s Property Data?

Distressed Property Owners

Real Estate

Build intelligent solutions to enable address verification and report analyses that provide investors, realtors and appraisers with detailed analytics.
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New Borrowers


Assess zoning codes to ensure proper planning and development.
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Financial Services


Enhance risk assessment with assessor data to verify ownership or legal description of a property.
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Distressed Property Owners


Gain critical insight into the significant events in the “life” of a property utilizing building permit data to help analyze risk.
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New Borrowers

Home Repair and Improvement

Target homeowners who may be looking to add new exterior or interior features to their home or those who have recently applied for a building permit.

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ATTOM’s Data is Your Business Advantage



A multi-sourced, enhanced national warehouse that contains information on more than 155 million U.S. properties including:

  • 29.6 Billion Rows of Data
  • 9,000 Data Fields
  • 20TB Warehouse
  • 99% Population Coverage

Quality Data

Our rigorous Enterprise Data Management Program (EDMP) involves more than 20 steps that validate, standardize and enhance the real estate data we collect:

  • Property Address Standardization
  • Owner Name Parsing
  • ATTOM ID Matching
  • Fusion of Multi-Sourced Data
  • Data Governance

Learn more about ATTOM and view our Table of Data Elements.

See How ATTOM Can Make a Difference for Your Business!