BRAVE vs MISMO vs UAD: Appraisal Data Standards Compared

Three Standards, Three Problems

The appraisal industry has multiple data standards, each designed for different use cases and eras. Understanding which standard applies to your work — and why — is essential for appraisers serving institutional clients.

This post compares BRAVE (Banking Real Estate Appraisal Valuation Exchange), MISMO (Mortgage Industry Standards Maintenance Organization), and UAD (Uniform Appraisal Dataset) across the dimensions that matter most: scope, format, complexity, and real-world adoption.

Quick Comparison

Feature	BRAVE	MISMO	UAD
Property Type	Commercial	Commercial & Residential	Residential only
File Format	XLSX, CSV	JSON, XML	XML (embedded in MISMO)
Field Count	99	600+	~400
Complexity	Low	High	Medium
Schema	Flat table	Nested hierarchy	Nested hierarchy
Primary Users	Banks, appraisers	GSEs, lenders, servicers	GSEs (Fannie Mae, Freddie Mac)
Adoption Stage	Early (2026)	Mature	Mature

UAD: The Residential Standard

UAD was introduced in 2011 by Fannie Mae and Freddie Mac to standardize residential appraisal data. It defines strict formatting rules for property descriptions, condition ratings, and quality ratings using coded values (e.g., "C3" for a property in fair condition).

Strengths: UAD is deeply embedded in residential lending. Every conforming residential appraisal delivered to the GSEs must comply with UAD formatting. Appraisal software like TOTAL, ACI, and Bradford have built-in UAD compliance.

Limitations: UAD is exclusively residential. It has no fields for commercial income analysis, tenant rosters, cap rates, or the other data points essential to CRE valuation. It is also embedded within the MISMO XML standard, meaning it is not a standalone format but a set of rules within a larger schema.

When to use: Any residential appraisal destined for Fannie Mae, Freddie Mac, or a lender who sells to the GSEs.

MISMO: The Industry Framework

MISMO is not a single standard but a family of standards maintained by the Mortgage Bankers Association. It covers the entire mortgage lifecycle, from loan application through servicing, and includes appraisal data schemas for both residential and commercial properties.

Strengths: MISMO is comprehensive. Its commercial appraisal schema can represent virtually any data point an appraisal might contain, including complex multi-tenant income structures, multiple valuation scenarios, and detailed comparable sale adjustments. It is the lingua franca of mortgage technology.

Limitations: That comprehensiveness comes at a cost. MISMO's commercial schema contains over 600 data elements organized in a deeply nested XML or JSON hierarchy. Implementing MISMO requires significant technical investment — both for the appraiser producing the data and the bank consuming it. Most appraisal firms lack the technical infrastructure to generate MISMO-compliant files without specialized software.

When to use: Large-scale integrations between appraisal management companies, technology platforms, and institutional lenders with existing MISMO infrastructure.

BRAVE: The Practical Commercial Standard

BRAVE was created by Valcre as an open industry standard, designed specifically to solve the problem MISMO made too complex: getting structured commercial appraisal data from appraisers to banks in a format both sides can work with. Over 300 appraisal firms already deliver BRAVE files.

Strengths: BRAVE's 99 fields cover the data points banks actually need for CRE loan underwriting — no more, no less. The flat XLSX/CSV format means any appraiser with a spreadsheet application can produce a compliant file. Validation is straightforward: check that required fields are present and correctly typed. No XML parsers, no nested schemas, no implementation consultants.

Limitations: BRAVE is newer and has narrower adoption than MISMO. Its 99-field scope means it cannot represent every possible data point in a complex commercial appraisal. For exotic property types or unusual valuation scenarios, some nuance may not fit within the standard fields.

When to use: Commercial appraisals delivered to banks that have adopted the BRAVE standard, starting with Bank OZK's March 2026 mandate.

Choosing the Right Standard

The decision usually is not yours to make. Your client dictates the standard. But understanding the landscape helps you anticipate requirements and position your practice.

If you do residential work for GSE-bound loans, UAD compliance is non-negotiable and already built into your workflow.

If you do commercial work for banks, BRAVE is the emerging requirement. Learn it now. Bank OZK is first, but the efficiency case is so compelling that broader adoption is a matter of when, not if. See our analysis of why banks are moving to BRAVE.

If you work with large AMCs or technology platforms, MISMO may already be part of your data pipeline, likely handled by your software rather than manually.

Can They Coexist?

Yes, and they will. These standards serve different segments and complexity levels. A large appraisal firm might deliver UAD-compliant residential reports to Fannie Mae, MISMO-formatted data to an AMC's technology platform, and BRAVE files to Bank OZK — all for different assignments.

The key is treating structured data delivery as a core competency rather than an afterthought. Tools like AppraisalAPI can help bridge the gap by extracting data from your existing PDF reports and formatting it to the standard your client requires.

For a deep dive into BRAVE's field structure, read our complete guide to the 99 fields. If you are ready to start producing BRAVE files, our guides for specific lenders — including Bank OZK, JPMorgan, and Wells Fargo — cover each bank's field requirements in detail.