Residential mortgage appraisals are in the final stage of one of the largest reporting changes in decades. Fannie Mae and Freddie Mac have moved the industry to the Uniform Appraisal Dataset (UAD) 3.6 and redesigned Uniform Residential Appraisal Report (URAR). Broad production began January 26, 2026, and the industry is now approaching the November 2, 2026 mandate for new appraisal submissions to the Uniform Collateral Data Portal (UCDP).
What is UAD 3.6?
UAD 3.6 is a standardized appraisal dataset and dynamic reporting structure created by Fannie Mae and Freddie Mac. It replaces the older collection of appraisal forms with a single Uniform Residential Appraisal Report that expands or contracts based on the property, inspection type, assignment, and data that apply.
The new structure aligns with the MISMO 3.6 data standard and captures more property and market information in structured fields rather than relying as heavily on free-form commentary and addenda.
Where the transition stands now
UAD 3.6 has been available in broad production since January 26, 2026. Beginning November 2, 2026, UAD 3.6 is required for new appraisal report submissions to UCDP unless the applicable lender has received an approved temporary policy exception from Fannie Mae or Freddie Mac. New legacy UAD 2.6 submissions otherwise receive a fatal submission message after the mandate.
Official references: Fannie Mae UAD resources and September 30, 2026 temporary policy exception.
What homeowners and sellers will notice
The most visible difference is that the appraiser may need to collect more structured information and more photographs during the property visit. The appraisal visit is still not a home inspection, but the reporting process is more detailed than many homeowners experienced under the legacy forms.
More interior photographs
Applicable reports may require photographs of kitchens, bathrooms, main living areas, bedrooms, below-grade areas, remodeling, ADUs, outbuildings, material defects, views, and water-related features depending on the property and assignment.
More structured property information
The report can capture detailed information regarding updates, condition, roof age, converted areas, ceiling information, ADUs, outbuildings, utilities, amenities, water access, views, energy features, and observable deficiencies.
Sketch and floor-plan information
The new reporting structure places more emphasis on standardized measurement and digital sketch or floor-plan data. Depending on the property and assignment, the appraiser may need a software-generated footprint or floor plan showing relevant dimensions and areas.
How long should homeowners and agents expect the appraiser to be at the property?
Fannie Mae and Freddie Mac do not prescribe a specific minimum inspection time. Time on site depends on the size, complexity, condition, property type, number of structures, accessibility, and scope of work.
As a practical planning guideline, Epic Appraisal recommends allowing approximately 60 to 90 minutes of unobstructed access for a typical interior-and-exterior residential appraisal. Smaller or straightforward properties may take less time. Larger homes, acreage, manufactured homes, multi-unit properties, ADUs, shops, waterfront, or multiple outbuildings may take longer.
The most important factor is access. The appraiser should be able to move through required rooms and exterior areas without waiting for rooms to clear, pets to be moved, locked spaces to be opened, or stored items to be relocated.
What real estate agents should tell clients
- Expect a more detailed appraisal visit than under many legacy workflows.
- Make all rooms accessible before the appraiser arrives.
- Secure dogs so the appraiser can safely view the interior and exterior.
- Clear access to crawl spaces, attics, garages, shops, ADUs, and other structures when required.
- Have a list of significant recent improvements and approximate dates available.
- Do not be surprised by more interior photographs and documentation of updates or condition.
- Allow enough appointment time for complete data collection.
See our How to Prepare for an Appraisal guide.
What UAD 3.6 means for lenders and mortgage professionals
For lenders, UAD 3.6 changes much more than the appearance of the appraisal report. It affects appraisal software, AMC workflows, lender integrations, UCDP submission requirements, compliance edits, quality control, revision handling, and the data available for collateral review.
Why turn times may be less predictable during the transition
The long-term goal is more standardized data and improved consistency. In the short term, however, a major industry transition can create friction. Potential contributors include:
- Appraisers adapting to a substantially different reporting workflow.
- More structured data collection and additional photography.
- Software updates and compatibility issues.
- AMC and lender platform integrations.
- New UCDP edits and quality-control review processes.
- Revision requests while reviewers and appraisers adjust to the new dataset.
- Pipeline management as the November mandate approaches.
The September 2026 policy exception does not mean the transition is cancelled
The GSEs announced a temporary exception process for lenders unable to meet the November 2 implementation requirement. This is a controlled exception for eligible lenders, not a reversal of UAD 3.6. Appraisers and lenders should still expect the industry to continue moving toward the new reporting structure.
What is changing in the appraisal industry overall?
- Legacy forms are being retired. The familiar form-number approach is giving way to a dynamic reporting structure.
- More information is structured data. Property characteristics that once lived mainly in comments are increasingly reported in standardized fields.
- Reports are more property-specific. Relevant sections appear based on the property and assignment.
- Photography is more clearly defined. Required and conditionally required images are tied to specific property features.
- Quality-control edits occur earlier. UCDP feedback can identify missing or invalid data before the report moves farther through the lending workflow.
- Appraisal software is becoming central to compliance. Data validation, images, sketches, and report packaging are increasingly integrated.
What homeowners can do to help prevent delays
- Provide full interior and exterior access.
- Secure pets before the appointment.
- Clear crawl-space and attic access when applicable.
- Open or provide access to garages, shops, ADUs, and outbuildings.
- Have information about major improvements available.
- Tell the appraiser about unusual features or areas that may not be obvious.
Bottom line
UAD 3.6 is not simply a new appraisal form. It represents a shift toward a more structured, data-driven reporting system across residential mortgage appraisal. Homeowners should expect more detailed property visits, agents should prepare clients for expanded documentation, and lenders should continue managing technology and appraisal pipelines carefully as the mandate approaches.
For lender appraisal services, visit our Mortgage & Lending Appraisals page.
Reviewed by Mark Ellis
Owner | Certified Residential Appraiser, Epic Appraisal
Mark has appraised residential real estate since 2005 and provides valuation services throughout the South Sound and surrounding Western Washington markets. Epic Appraisal resource articles are reviewed for appraisal-industry accuracy and practical relevance.