ATTOM AVM
Transparent. Confident. Accurate.Lender Grade Property Valuations at Affordable Rates
Thanks to the vast national coverage of our property data, ATTOM is able to fill the gap between overpriced lender-grade property valuations that are only cost-effective for large corporate users, and deliver our property automated valuations model at a more consumer-grade price level.
Our AVM results can come as stand-alone values or be flexible and included with other ATTOM data using match & append and marketing lists as well as be delivered as part of a bulk file, custom list or API.
ATTOM provides transparency in its overall analytical process by offering a detailed white paper available for download by request.
Property Data Used Makes a Difference
Utilizing more than 80 million homes in our property database across all 50 states and representing 99% of the US population, and valuation software developed by Automated Valuation Model Analytics, our property AVM:
Employs multiple AVM models to choose the modeling approach that is most accurate to the geographic area surrounding the individual property.
Eliminates mobile homes, multi-million dollar homes, farms or agricultural land and large multi-unit rental properties from the calculations.
Limits valuation to only single-family homes, condominiums, and small multiple family properties (one-to-four units).
Requires a minimum of 15 comparable properties and may use as many as 100 properties to generate its estimates.
Confidence Matters
Every property receives a unique confidence score.
This confidence score represents the precision of the AVM estimate and measures the deviation between the range of values and the point value itself. To provide the most transparent measure of variability in the estimates, we provide the larger of differences between the low and high value and point estimate.









Accuracy You Can Trust
To gauge the accuracy of automated valuation model, we have compared our AVM values to actual sale prices over a recent three month period.
This chart highlights the overall distribution of the absolute differences between our AVM values and observed sale prices.



An Automated Valuation Model You Can Count On!
ATTOM AVM is a technologically advanced property automated valuation model providing lender-grade results with increased transparency through the application of robust statistical procedures to property data from the nation’s largest multi-sourced property database.


View a Recording of Our ATTOM AVM Webinar!
How Can You Use ATTOM AVM?
Real Estate Investments
Whether valuing one home or a portfolio of properties, real estate investment tools can now access estimated values, ranges, and confidence scores with “lending-grade” quality.
Real Estate Portals
Displaying the most accurate estimated home values, along with detailed property profile information, adds up to page content that drives more traffic and higher conversion rates.
Insurance
Calculating insurance quotes require an accurate and current estimated value for the home in addition to the home profile, location, neighborhood and risk information.
Mortgage
Borrower pre-qualifications take many variables into consideration. The estimated market value for a home is a critical piece in determining borrower and lending program fit.
Appraisal Management Companies
For AMCs that create broker price opinions (BPOs), our AVM values deliver high quality estimates and ranges with a confidence score that can be relied on for data driven business decisions.
Marketing
Create targeted prospect lists, where prospective market value is a key demographic filter. AVM values can also enrich all types of marketing collateral with recipient-relevant values.
A Variety of Solutions for Your Data Needs
ATTOM can deliver your AVM in a number of ways including:
- Data-as-a-Service (DaaS)
- Bulk Data Licensing
- Property Data APIs
- Market Trends
- Marketing Lists
- Match & Append
Learn more about ATTOM Data and view our Table of Data Elements.