What is a desktop appraisal and when is it allowed?

A desktop appraisal is a real appraisal without the drive

A desktop appraisal is still an appraisal. Same analysis, same comparable sales, same signed opinion of value. The difference is that the appraiser does not walk through the house. The work happens from the desk, using records, data and whatever the people who know the house can provide.

On the lender side, Fannie Mae has a specific version. Its desktop report form requires the same exhibits as a traditional appraisal, plus a floor plan. The appraiser can pull property details from one or more data sources, and can use photos or videos and information from the homeowner, borrower or a third party to describe the house.

Loan officers sometimes hear desktop and think drive-by. Not the same. A drive-by at least gets the appraiser to the curb. A desktop gets the appraiser to a good chair and a second monitor.

When Fannie Mae allows a desktop appraisal

The Fannie Mae box is narrow. Per Selling Guide B4-1.2-02 (dated 12/10/2025), a desktop appraisal is eligible only when the loan is:

• A purchase, including new construction
• On a one-unit property, which can include one with an ADU or a unit in a PUD
• A principal residence
• At an LTV of 90% or less
• A DU loan casefile with an Approve/Eligible recommendation

And these are out:

• All refinances
• Two- to four-unit properties, condos and co-ops, and manufactured homes
• Second homes and investment properties
• Construction-to-permanent loans
• HomeReady, HomeStyle Renovation and HomeStyle Refresh loans
• Community land trusts and other resale-restricted properties
• Manually underwritten loans and DU Ineligible casefiles

Even when a file qualifies, DU may offer a desktop, a hybrid or a traditional appraisal, and the lender picks. Freddie Mac, FHA and VA have their own rules, so check the investor before promising a borrower anything.

How long a Fannie desktop appraisal stays good

Desktops have a shorter shelf life than many loan officers expect. Under Fannie Mae's age rules (B4-1.2-04), if the desktop's effective date is more than four months before the note date, the lender needs a new appraisal.

A traditional appraisal works differently. Between four and 12 months old, it can usually be kept alive with an appraisal update that includes an exterior inspection. A desktop does not get that option under the same rule. Past four months, start over.

Here is the practical move for loan officers:

1. Confirm eligibility first. Purchase, one unit, principal residence, 90% LTV or less, DU Approve/Eligible.
2. Watch the calendar. If the escrow looks likely to stretch, a desktop dated too early can expire before funding.
3. Get the floor plan inputs lined up. The appraiser needs good property data, and someone has to supply it.
4. Set expectations. A desktop is not a shortcut around a tough value. Same comps, same market.

What makes a desktop appraisal hold up

With no walk-through, the appraiser leans entirely on the information it is given. Good inputs make a good desktop. Thin inputs make a desktop that leans on assumptions, and assumptions are where values drift.

Here is what helps most, whether the desktop is for a lender or a private client:

• Accurate size and layout. Fannie Mae's desktop requires a floor plan, and the square footage and room count drive the whole grid.
• Honest condition details. Dated kitchen, new roof, a bathroom that leaks. The appraiser cannot see it, so somebody has to say it.
• Recent, clear photos of the main rooms, the kitchen and baths, and the outside of the house.
• Upgrade records with dates and permits where they exist.

The house that photographs like a magazine and secretly has a 1974 furnace is still a house with a 1974 furnace. Tell the appraiser.

The lender hybrid is a different animal

Lenders also use a hybrid appraisal. In Fannie Mae's version (B4-1.2-03), a trained and vetted third party, such as an agent, an insurance inspector or another appraiser, collects interior and exterior data. The appraiser then uses that data to complete the appraisal. Data collection and the appraisal are separate jobs, and different people can do them.

That is the lender version, and it has its own eligibility list. It is broader than the desktop one. Hybrids can be used on some refinances and on second homes and investment properties, for example.

At ValuedAudit, desktop and hybrid are one product for private clients, and it works without a site visit. You tell me what you know about the property, send photos if you have them, and list the pros and cons you are aware of. I put that together with public records and market data, and with the technology and methods I use on every file. No data collector at the door, no inspection appointment to schedule around the dog.

When a private desktop makes sense

Most of my desktop work has nothing to do with a mortgage. A lender usually orders its own appraisal for a loan. A private desktop answers other questions:

• Estates and trusts. Heirs need a value, and the house may be across the state or full of a lifetime of furniture.
• Pre-listing pricing. A seller and agent want evidence before picking a list price.
• Divorce and buyouts. Two parties need one number from someone working for neither side.
• Planning. Insurance, a buy decision, or just knowing where you stand.

I also do a desktop review, which is a second opinion on someone else's appraisal. I check that report against the evidence: the comps it used, the ones it skipped, and whether the adjustments match what the market actually did.

My method is evidence-based, blending data science with human insight. I have taught and practiced it for almost two decades, long before AI showed up and started guessing at home values. Facts over feelings works fine from a desk. It just needs good facts.