Desk Review vs. Drive-By Appraisal 2026: When Each Is Acceptable

Full interior appraisals are the default for most purchase and refinance transactions, but lenders and agencies have created alternative valuation options for lower-risk scenarios. Understanding the hierarchy from desktop to drive-by to full appraisal determines how quickly your file can close and what it costs.

Desk Review

• ✦A desk review is a review of an existing appraisal report by a second appraiser who does not visit the property. The reviewing appraiser examines the original report for guideline compliance, comparable selection logic, and opinion of value supportability.
• ✦Lenders order desk reviews when they believe the original appraisal has issues but do not want to order a full second appraisal. They are also used in quality control workflows after closing.
• ✦A desk review does not substitute for an appraisal. It is an evaluation of an existing appraisal, not an independent valuation. You cannot use a desk review in place of a required full appraisal.

Drive-By or Exterior-Only Appraisal

• ✦A drive-by appraisal, formally called a Form 2055 for conventional or an exterior-only inspection for FHA, involves an appraiser who inspects the exterior of the property only and completes a limited appraisal report.
• ✦Drive-by appraisals are acceptable in limited circumstances: some refinance transactions, low-LTV situations where the lender accepts the property condition risk, and second mortgage loans where a full appraisal was completed recently.
• ✦Fannie Mae's desktop underwriter may approve a drive-by appraisal as a condition of the AUS finding. This is different from a lender-ordered drive-by and carries agency backing.

When Each Is Ordered

• ✦Full appraisal: required for all purchase transactions, most refinances, and any time the borrower file is borderline or the property has unusual characteristics.
• ✦Drive-by: available on certain refinances, non-QM investor loans, and low-LTV portfolio products where the lender accepts exterior-only inspection.
• ✦Desktop appraisal or value acceptance: available when DU or LP issues an appraisal waiver based on automated valuation models. No appraiser involvement required.
• ✦Desk review: ordered after the fact for QC purposes or when underwriting questions the original appraisal.