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Lender Grade Automated Valuation Models 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.

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 Real Estate 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 real estate valuations 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.


A Real Estate AVM 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.


How Can You Use ATTOM’s 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

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.


Calculating insurance quotes require an accurate and current estimated value for the home in addition to the home profile, location, neighborhood and risk information.


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.


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.
AVM Whitepaper


ATTOM provides transparency in its analytical process by offering a FREE detailed white paper, better explaining how the ATTOM AVM works. This white paper provides insights into the data sources, algorithms, and methodologies used to calculate property valuations.

The ATTOM AVM is an advanced automated valuation model (AVM) designed to provide hyperlocal valuations using transparent and robust statistical procedures. The ATTOM AVM uses comparable sales based on geographic areas to estimate the value of a property using multiple valuation models. Statistical metrics and clustering algorithms are used to eliminate certain models, and the confidence score is determined by the difference between the low and high values and the median value estimate. Regular accuracy tests are conducted to determine the most accurate model for each neighborhood, with the most accurate local model becoming the estimated AVM value.

Discover the New ATTOM Rental AVM & Other Key Valuation Datasets

Sean Mooney, Vice President of Product Management for ATTOM, offers an in-depth look at our new Rental AVM, while providing insight into all the solutions that comprise our valuation data category – including our ATTOM AVM – and demonstrate how customers can use our property data to get a competitive edge.


High-Level Takeaways Include:

  • What is a Rental AVM and how can it help my business?
  • What is the ATTOM AVM and its key features?
  • Better understanding assessor tax values and assessor market values
  • How clients from various industries utilize real estate valuations
  • And more….
Sean Mooney, Vice President of Product Management
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What is an AVM in real estate?

An Automated Valuation Model (typically abbreviated to AVM) uses real estate data and algorithms to calculate an estimate for the value of a property AVM. AVMs draw on a wide variety of real estate data, such as market values, local property price trends, interior and exterior features, and the age of a property.

ATTOM’s AVM Insights

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