Understanding Home Appraisal Quality Ratings: Q1–Q6 Explained

During the home appraisal process, the appraiser assigns a quality rating, sometimes referred to as an appraisal grade, to your property. This rating helps explain how your home was built, the materials used, and the overall level of craftsmanship.

A common question homeowners ask is:
What does the quality rating mean, and how is it determined?

Here’s how quality ratings are determined under the new UAD 3.6 appraisal standards starting in 2026. The way value is calculated hasn’t changed - but the way it’s explained has.

How Quality Ratings Work in a Home Appraisal

Quality ratings measure the quality of construction, not how clean, updated, or well-maintained the home is.

An older home that has been perfectly maintained can still have a lower quality rating if it was originally built with basic materials.

On the flip side, a newer home may still receive an average rating if it was built using standard production methods.

Private Appraisals vs. Loan Appraisals

If you are ordering a private appraisal - such as for estate planning, property evaluation for a date in the past, divorce, tax planning, pre-listing appraisal, or simply to understand your home’s value - we typically describe quality using these familiar terms:

Poor
Fair
Average
Good
Very Good
Excellent

However, if your appraisal is for a loan through Fannie Mae, Freddie Mac, FHA, or another institutional lender, those same quality levels must be converted to a Q1 through Q6 for the Uniform Appraisal Dataset (UAD) system.

It’s just a different way of naming them.

Understanding Q1–Q6 Quality Ratings

Q1: Excellent Quality

A Q1 (Excellent) rating is the highest possible quality classification. These are typically custom-designed homes built by an individual architect for a specific owner.

You’ll see:

Exceptional design
Top-tier materials throughout
Superior craftsmanship
Unique features far beyond standard residential construction

These are not common homes. Think true luxury, where cost and customization were not limiting factors.

Q2: Very Good Quality Rating

A Q2 (Very Good) rating still represents high-end construction, but without the extreme customization of a Q1 home.

These homes often feature:

High-quality materials
Custom or semi-custom design
Upscale finishes throughout

In the Phoenix area, Q2 homes are frequently found in markets like Scottsdale and Paradise Valley, where quality and design are well above average but still practical for broader resale.

Q3: Good Quality Rating

A Q3 (Good) quality rating represents well-built homes using solid materials, often found in higher-end subdivisions or custom-on-lot builds.

You generally will not see:

No laminate countertops
No builder-grade flooring
No entry-level finishes

Q3 homes are well above typical tract construction and reflect thoughtful design and better-than-average materials.

Q4: Average Quality Rating

A Q4 rating represents standard production or tract homes, which make up the majority of residential properties.

These homes typically:

Are built from a limited set of models
Use standard materials
Are functional and livable, but not customized

This is the most common quality level in large subdivisions.

Q5: Below Average Quality Rating

A Q5 rating often applies to older homes - commonly built in the 1940s, 1950s, or 1960s - with very basic construction.

These homes are:

Livable
Structurally functional
Built with minimal design and materials

They are often very plain, box-style homes with little or no upgrades.

Q6: Fair to Poor Quality Rating

A Q6 rating reflects very minimal construction quality. These properties are often valued more for location or land use than the structure itself.

Examples may include:

Hunting cabins
Seasonal lake or river homes
Structures intended primarily for shelter, not long-term residential living

In some cases, the dwelling is secondary to the land’s value.

What’s New Under UAD 3.6: The + / – Quality Modifiers

With the rollout of UAD 3.6, appraisers can now add a plus (+) or minus (–) modifier to a quality rating.

This does not create new quality categories - there are still only Q1 through Q6.

Instead, the modifiers allow appraisers to explain where a home falls within a category.

Examples:

Q3+ → Upper end of Good quality
Q3 → Typical Good quality
Q3– → Lower end of Good quality, but not Q4

This change helps avoid situations where a home is “almost” a higher quality or “barely” meets a category, without forcing the appraiser to over- or under-rate the property.

What the + / – Modifiers Mean for Homeowners

They do not automatically change value
They do not replace comparable sales
They do not create stricter appraisal rules

They simply allow for more accurate and transparent reporting, which helps lenders, underwriters, and homeowners better understand how the appraiser evaluated the property.

Why Quality Ratings Matter

When we complete an appraisal inspection, we pay close attention to:

Construction materials
Workmanship
Design quality
Overall build standards

Quality ratings help ensure your home is compared to appropriate comparable properties, which supports a fair and well-documented opinion of value.

Need A Home Appraisal In Phoenix, AZ?

We provide professional home appraisals throughout the Phoenix area, including Scottsdale, Chandler, Gilbert, Mesa, San Tan Valley, and surrounding communities.

At Master Appraisal Services, we work with Arizona real estate agents every day to ensure appraisals are clear, professional, and reflective of real market conditions.