Uniform Appraisal Dataset

Improving the quality and consistency of appraisal data

Fannie Mae and Freddie Mac (the GSEs) have worked on the UAD redesign since 2018, leveraging extensive stakeholder input to update the appraisal dataset, align it with current mortgage industry data standards (MISMO® v3.6), and replace the GSE appraisal forms with a single data-driven, flexible, and dynamic appraisal report for any residential property type. To begin the multiyear rollout phase, the GSEs have published the technical specifications and resources below.


The Uniform Appraisal Dataset (UAD) and Forms Redesign team has released additional documentation and updated one existing document to support ongoing implementation efforts. These resources supplement the initial documentation released in March 2023 – kicking off industry development and preparation for the new appraisal data set and report – along with subsequent documents published in 2023 and 2024.

  • New: Lender Readiness Kit
  • New: Legacy Forms to Redesigned Uniform Residential Appraisal Report (URAR) Property Type Characteristics
  • New: UAD Compliance Rules for the Restricted Appraisal Update Report and Completion Report
  • Updated: UAD Compliance Rules for the Uniform Residential Appraisal Report (URAR)

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What's New

New Lender Readiness Kit
Supplement to the previously published Partner Playbook. This document helps lenders prepare for and adopt the updated UAD and retire the existing appraisal forms. It offers timelines and roadmaps to keep lenders on track, and additional resources to learn more along the way.

Functioning without Form Numbers: Mapping Legacy Forms to Redesigned Uniform Residential Appraisal Report (URAR) Property Type Characteristics
Helps the transition to the new report by providing clarification on how existing appraisal form numbers map to the URAR’s new dynamic structure and discrete and repeatable data.

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UAD Documentation

The following UAD resources provide the actionable documentation needed to translate the data entered on the report into the format required for submission via the UCDP.

UAD 3.6 Subschema Zip File

The UAD documentation leverages the MISMO Version 3.6. The GSEs have created a Subschema that contains only the data elements needed to support the UAD 3.6 specification and includes additional enforcement.