How to Fill Out and Submit Form 2055: Exterior-Only Appraisal via UCDP

Form 2055, the Exterior-Only Inspection Residential Appraisal Report, is the standardized Fannie Mae and Freddie Mac form an appraiser uses to value a one-unit residential property based on a physical inspection of the exterior plus secondary data, without ever entering the home.¹ Lenders order it on conventional mortgage transactions when the property’s risk profile suggests a full interior walkthrough would add little, most commonly on refinances of well-documented homes.

When Lenders Use Form 2055

Form 2055 is a Government-Sponsored Enterprise product, so it applies to conventional lending only. FHA loans cannot use it: HUD has stated that “Exterior Appraisal forms Fannie Mae 2055 and Fannie Mae 1075 are not FHA approved forms and are not compatible with FHA’s Electronic Appraisal Delivery (EAD) portal.”² VA and USDA loans have their own appraisal requirements and do not use this form either.

The lender decides when an exterior-only appraisal is appropriate, not the borrower or the appraiser. Fannie Mae’s Desktop Underwriter and similar automated systems sometimes flag a loan as eligible for exterior-only based on factors like loan-to-value ratio, property type, and transaction history. The appraiser receives the assignment through the lender or an Appraisal Management Company with instructions specifying the exterior-only scope.

Form 2055 is not a desktop appraisal. A desktop appraisal (Form 1004 Desktop) involves no physical visit at all; the appraiser works entirely from secondary data, photos, and virtual tools.³ Form 2055 requires the appraiser to physically visit the property and inspect it from the outside. The two forms serve different risk tolerances and are not interchangeable.

What the Appraiser Does at the Property

The appraiser drives to the property and views it from the public right-of-way. This is often called a drive-by inspection, but it is more than a glance from the car. The appraiser assesses the exterior shell (siding, roofing, windows, gutters), notes any visible deferred maintenance or structural concerns, and evaluates how the property fits its neighborhood in size, style, and condition. External influences like heavy traffic or adjacent commercial use also get factored in.

Visible site features count too: driveways, fences, landscaping, and outbuildings. The report requires photographs showing the front, rear, and a street scene of the subject property, plus the front of each comparable sale.⁴ The appraiser does not enter the home, view rooms, or measure interior dimensions.

Sections of the Form

The form runs two pages and follows the structure of a full appraisal report minus the interior-specific observations.

Subject and Contract

The top of page one captures identifying details: property address, county, legal description, assessor’s parcel number, tax year, real estate taxes, and the owner of public record. On a purchase, the appraiser reports the contract price, contract date, seller identity, and any financial assistance or concessions.⁴ The appraiser also notes whether the property has been offered for sale in the prior twelve months and at what price.

Neighborhood and Site

The neighborhood section characterizes the market: housing trends (increasing, stable, or declining), price and age ranges for one-unit housing, present land use percentages, and overall demand and supply. The appraiser draws the neighborhood boundaries and describes market conditions in narrative form.

The site section covers lot dimensions, shape, zoning, flood zone status with the FEMA map number and date, and whether utilities and off-site improvements are typical for the area. Any adverse site conditions get disclosed here.

Improvements

This is where the exterior-only scope matters most. The appraiser reports room count, bedroom and bathroom count, gross living area (GLA), foundation type, exterior walls, roof surface, heating and cooling, and amenities like fireplaces, patios, or pools. Because the interior is off-limits, every one of these fields relies on secondary data: county tax records, prior MLS listings, previous appraisals, or building permits. The form requires the appraiser to identify which sources were used for physical characteristics and specifically for GLA.⁴

GLA is total finished above-grade square footage. Fannie Mae considers any level with any portion below grade to be below-grade, even if it has finished rooms and walkout access, and that area does not count toward GLA.⁵ The number drives the price-per-square-foot comparison with comparables, so when public records and MLS data disagree, the appraiser needs to reconcile the discrepancy and explain which figure was used.

Sales Comparison

Page two contains the sales comparison grid, which is where the valuation is actually built. The appraiser selects at least three closed comparable sales and lines them up against the subject property.⁶ Comparables should generally have sold within the prior twelve months; older sales are acceptable in slow markets if the appraiser explains their use.

For each comparable the grid records sale price, sale date, location, site size, design and appeal, quality of construction, age, condition, GLA, room count, basement details, functional utility, and other relevant features. The appraiser makes dollar adjustments for each meaningful difference between the comparable and the subject. The adjusted sale prices of the comparables bracket the appraiser’s final opinion of value.

The Interior Assumption

Every Form 2055 carries a built-in limitation: the appraiser has not seen the interior. Under the Uniform Standards of Professional Appraisal Practice, the appraiser must disclose this scope limitation and state any extraordinary assumptions. An extraordinary assumption is an assignment-specific assumption about uncertain information that would change the value conclusion if it turned out to be wrong. On an exterior-only report, the standard extraordinary assumption is that the interior is in condition consistent with the exterior and that no hidden defects exist.

If something visible from the outside suggests an interior problem, such as water stains on exterior walls, sagging rooflines, or foundation cracks, the appraiser notes it and may recommend a follow-up inspection by a qualified professional. Red flags cannot be ignored just because the scope is exterior-only.

Delivery Through UCDP

After the appraiser completes all fields and applies a digital signature, the report is converted to an electronic format and delivered to the lender or AMC through a secure portal. For loans destined for Fannie Mae, appraisal reports pass through the Uniform Collateral Data Portal (UCDP), which validates that the data conforms to Uniform Appraisal Dataset (UAD) requirements and returns error messages for anything out of compliance.⁷ The report must receive a “Successful” status from the UCDP before the loan can be sold to Fannie Mae.⁸

UAD standardization means the appraiser cannot freelance with condition and quality descriptions. Ratings like C3 or Q4 follow a defined scale, and location, view, and other fields use prescribed abbreviations. Modern valuation software handles most UAD formatting automatically, but choosing the correct ratings remains the appraiser’s responsibility.

What Happens After Submission

An underwriter reviews the valuation to confirm it supports the loan-to-value ratio the mortgage requires. The underwriter checks whether the comparables are appropriate, whether the adjustments are reasonable, and whether the final value opinion is credible given the data. If everything holds up, the appraisal is marked satisfactory and the loan moves toward closing. The borrower receives a copy of the report; federal law requires lenders to provide it promptly.

When the appraised value comes in below the purchase price or the amount needed for a refinance, the borrower can renegotiate the price, bring additional cash to cover the gap, or request a reconsideration of value.

Reconsideration of Value

A reconsideration of value (ROV) is not simply an objection that the number feels low. Fannie Mae limits borrowers to one ROV per appraisal report, and the request must include specific, factual support.⁹ Valid grounds include:

Factual errors, such as math mistakes, incorrect room counts, wrong square footage, or misidentified property features.
Better comparable sales that are more similar to the subject than the ones the appraiser chose, with an explanation of why they fit better.
Evidence of bias, meaning documentation suggesting the value was influenced by the borrower’s personal characteristics or the demographics of the neighborhood.

If an ROV request does not meet minimum requirements, the lender works with the borrower to fill in the gaps before sending it to the appraiser. The appraiser then updates the report to correct any confirmed errors and provides comments explaining any changes.⁹ The lender, not the appraiser, makes the final decision on whether to accept the appraiser’s conclusions.

Errors That Get Reports Sent Back

Most problems with Form 2055 fall into a small set of avoidable categories:

Relying on a single source for GLA. Public records are often outdated or rounded; cross-referencing tax records against MLS data and building permits catches discrepancies before the underwriter does.
Using stale comparables without explanation. Sales older than twelve months need a clear narrative explaining why they are the best available indicator.⁶
Omitting the extraordinary assumption about interior condition. Every exterior-only report must include it; leaving it out is a USPAP compliance issue.
Failing to photograph the rear of the property. The form requires front, rear, and street scene photos. If the rear is inaccessible from the public right-of-way, the appraiser should note the limitation rather than skip the photo without explanation.
Counting below-grade finished area as GLA. A finished walkout basement is below-grade under Fannie Mae’s definition and does not count toward above-grade square footage, even if it looks and functions like living space.⁵

Any of these will typically send the report back for corrections, adding days to the loan timeline. Getting the details right on the first submission is the surest way to keep a transaction on schedule.

1
Fannie Mae. Appraisers and Property Underwriting
2
U.S. Department of Housing and Urban Development. Mortgagee Letter 2020-37
3
Fannie Mae. Desktop Appraisals
4
Freddie Mac. Exterior-Only Inspection Residential Appraisal Report
5
Fannie Mae. Improvements Section of the Appraisal Report
6
Fannie Mae. Comparable Sales
7
Fannie Mae. Uniform Appraisal Dataset (UAD) Frequently Asked Questions
8
Fannie Mae. Uniform Appraisal Dataset (UAD) and the Uniform Collateral Data Portal (UCDP)
9
Fannie Mae. Reconsideration of Value (ROV)