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Uniform Appraisal Dataset

Updated UAD Redesign Timeline with Specific Implementation Dates

Freddie Mac and Fannie Mae (the GSEs) released a detailed timeline for migration to the Uniform Appraisal Dataset (UAD) 3.6 and dynamic Uniform Residential Appraisal Report (URAR). While the timeline has not changed, specific dates for each implementation phase have been provided to help the industry develop more detailed plans for implementation activities.

Highlights include:

  • Industry Prep (ongoing)
    • Industry training available on GSE websites: November 18, 2024
    • GSEs publish policy updates: June 4, 2025
    • ULDD Mandate: July 28, 2025
  • Limited Production: September 8, 2025 – January 25, 2026
  • Broad Production: January 26, 2026 – November 1, 2026
  • UAD 3.6 Mandate: November 2, 2026
  • UAD 2.6 Retirement: May 3, 2027

View the full announcement and timeline.

Q3 2024: New and Updated UAD and Forms Redesign Documentation

The Uniform Appraisal Dataset (UAD) and Forms Redesign team has updated existing documentation to align documents, make minor changes and provide further clarification. A detailed Revision History is provided in each document. In addition, we’ve created two additional Uniform Residential Appraisal Report (URAR) sample scenarios.

Updated

  • UAD Subschema
  • UAD Specifications
  • Implementation Guides
  • Reference Guides
  • Style Guide
  • Report Layouts
  • URAR Rules
  • Sample Scenarios and XML Files

New

Appendix D-1 has two new scenarios that include a Single Family with a Reconsideration of Value (ROV) and an additional 2- to 4-unit property.

Access the documentation here.

Now Playing: UAD Redesign the Movie

    

Additional Resources

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.

Uniform Residential Appraisal Report

Appendix A-1: UAD URAR Delivery Specification

This document contains the UAD dataset and XML mapping based on MISMO v3.6. It includes all the details necessary to create a well-formed XML file in accordance with MISMO v3.6.

Appendix B-1: URAR Implementation Guide (iGuide)

This zip file contains the Implementation Guide and its supplements. The Implementation Guide assists software vendors with data mapping, field formats, and the display logic for the PDF representation of the report. The supplements help identify details related to the Comparable Grids, and provide guidance for creating the user interface.

Appendix C-1: URAR Layout

This zip file contains the URAR Layout with Report Field IDs and the URAR Layout without Report Field IDs. The purpose of these documents is to show all possible Report Labels that may display on the URAR, regardless of conditionality.

Appendix D-1: URAR Sample Scenarios and XML Files

This zip file contains example scenarios, accompanying XMLs, and a document that summarizes the scenarios, including key characteristics and changes since the last published version.

Appendix E: Report Style Guide

This zip file contains the Report Style Guide and its supplements. The Report Style Guide describes the design and layout of the reports. It includes specifications for the sizes and positioning of all elements that could appear in the reports. The supplements are sample reports with design elements noted. 

Appendix F-1: URAR Reference Guide

This zip file contains the URAR Reference Guide and its supplement. The Reference Guide provides guidance on how to enter information and how the data will be displayed in the URAR. The supplement summarizes information about the comparable grids.

Appendix G-1: Redesign to Legacy UAD Cross-reference Guide

This document contains the data points, enumerations and xPaths of the redesigned UAD mapped to existing data elements in the Legacy UAD dataset.

Appendix H-1: UAD Compliance Rules - URAR

This document contains rules to help lenders and vendors deliver the XML in compliance with the UAD Delivery Specification. These rules verify data completeness, validity (format and data type), and reasonableness.

Appraisal Update

Appendix A-2: UAD Restricted Appraisal Update Report Delivery Specification

This document contains the UAD dataset and XML mapping based on MISMO v3.6. It includes all the details necessary to create a well-formed XML file in accordance with MISMO v3.6.

Appendix B-2: Restricted Appraisal Update Report Implementation Guide (iGuide)

This document assists software vendors with data mapping, field formats and the display logic for the PDF representation of the report.

Appendix C-2: Restricted Appraisal Update Report Layout

This zip file contains the Appraisal Update Report Layout with Report Field IDs and the Appraisal Update Report Layout without Report Field IDs. The purpose of these documents is to show all possible Report Labels that may display on the Appraisal Update Report, regardless of conditionality.

Appendix D-2: Restricted Appraisal Update Report Sample Scenario and XML File

This zip file contains example scenarios, accompanying XMLs, and a document that summarizes the scenarios, including key characteristics and changes since the last published version.

Appendix F-2: Restricted Appraisal Update Report Reference Guide

This document provides guidance on how to enter information and how the data will be displayed in the Restricted Appraisal Update Report.

Appendix H-2: UAD Compliance Rules - Update Report

This document contains rules to help lenders and vendors deliver the XML in compliance with the UAD Restricted Appraisal Update Report Delivery Specification. These materials assist in verification of data completeness, validity (format and data type), and reasonableness.

Completion Report

Appendix A-3: UAD Completion Report Delivery Specification

This document contains the UAD dataset and XML mapping based on MISMO v3.6. It includes all the details necessary to create a well-formed XML file in accordance with MISMO v3.6.

Appendix B-3: Completion Report Implementation Guide (iGuide)

This document assists software vendors with data mapping, field formats and the display logic for the PDF representation of the report.

Appendix C-3: Completion Report Layout

This zip file contains the Completion Report Layout with Report Field IDs and the Completion Report Layout without Report Field IDs. The purpose of these documents is to show all possible Report Labels that may display on the Completion Report, regardless of conditionality.

Appendix D-3: Completion Report Sample Scenarios and XML Files

This zip file contains example scenarios, accompanying XMLs, and a document that summarizes the scenarios, including key characteristics and changes since the last published version.

Appendix F-3: Completion Report Reference Guide

This document provides guidance on how to enter information and how the data will be displayed in the Completion Report.

Appendix H-3: UAD Compliance Rules - Completion Report

This document contains rules to help lenders and vendors deliver the XML in compliance with the UAD Completion Report Delivery Specification. These materials assist in verification of data completeness, validity (format and data type), and reasonableness.

Legacy Resources

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