The Problem With ‘Drive-By’ Appraisals in High-Conflict Separation Cases
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"We don't need to go inside the house. Can't the appraiser just look at it from the street and determine the value?"
It is a question that occasionally arises in matrimonial appraisal matters, particularly when one spouse remains in the matrimonial home and the other party wants to avoid conflict over access.
At first glance, a drive-by appraisal may seem like a practical solution.
There is no need to coordinate an interior inspection.
There is less interaction between the parties.
The appraisal may be completed more quickly.
But in a high-conflict separation, the very reason a drive-by appraisal appears convenient can also be the reason it creates problems later.
When hundreds of thousands—or sometimes millions—of dollars of family property are involved, uncertainty about the home's interior condition can become an important valuation issue.
What Is a "Drive-By" Appraisal?
The term "drive-by appraisal" is commonly used to describe an appraisal where the appraiser observes the property from the exterior but does not complete an interior inspection.
The appraiser may still research:
MLS sales history.
Municipal or other available property information.
Comparable sales.
Neighbourhood characteristics.
Market conditions.
Historical photographs where available.
However, one significant piece of information may be missing:
The appraiser has not personally observed the interior condition of the property.
That limitation can become particularly important in matrimonial matters.
A Common Separation Scenario
Consider a hypothetical example.
A couple separates after living in a detached GTA home for fifteen years.
One spouse remains in the matrimonial home.
The other spouse requests an appraisal as of the date of separation, but obtaining interior access becomes difficult because communication between the parties has deteriorated.
A drive-by appraisal is proposed instead.
Available records indicate that the property contains approximately 2,400 square feet.
From the exterior, it appears reasonably maintained.
But what cannot necessarily be confirmed from the street?
Whether the kitchen has been renovated.
Whether the bathrooms are original.
Whether the basement is professionally finished.
Whether there is significant deferred maintenance.
Whether interior improvements or deficiencies materially affect buyer appeal.
Those factors can influence market value.
And in a high-conflict file, they can also become the exact factors one party later challenges.
Two Identical-Looking Homes Can Have Very Different Values
Exterior appearance tells only part of the story.
Imagine two nearly identical homes located on the same street.
Both were constructed at approximately the same time.
Both have similar lots.
Both contain approximately the same living area.
From the street, they appear almost identical.
Inside, however, one has been extensively renovated with a modern kitchen, updated bathrooms and high-quality finishes.
The other remains largely original.
Buyers may react very differently to those two properties.
That is why interior condition can be an important part of residential appraisal analysis.
High-Conflict Files Magnify Uncertainty
In a cooperative separation, the parties may agree on the property's general condition.
In a contentious matter, that may not happen.
One spouse may say:
"The house was completely renovated."
The other may say:
"Most of those renovations were cosmetic and the house still needed significant work."
If the appraiser never inspected the interior, resolving those competing descriptions becomes more difficult.
The issue isn't necessarily that an exterior-only appraisal cannot be completed.
The issue is that the limitations and assumptions involved may become much more significant when the parties already disagree.
Historical MLS Photographs Can Help—But They Have Limits
For retrospective matrimonial appraisals, historical MLS information can sometimes provide useful evidence about a property's condition.
For example, if the home sold several years earlier, the previous listing may contain interior photographs.
Those photographs can help the appraiser understand the property's historical layout and finishes.
However, they do not necessarily establish its condition on the later effective valuation date.
A kitchen photographed in 2017 may have been renovated by the 2023 separation date.
A finished basement may have been added.
Or the property's overall condition may have deteriorated.
Historical photographs can therefore provide useful context, but they do not always replace direct observation or reliable information about the property on the effective date.
Assumptions Need to Be Clearly Disclosed
When an interior inspection cannot be completed, the appraisal may need to rely on assumptions regarding characteristics that cannot otherwise be verified.
Those assumptions should be clearly identified.
For example, the analysis may depend upon an assumption that the interior condition was consistent with available information or representations provided to the appraiser.
That becomes important because the reader needs to understand:
What did the appraiser actually observe, and what did the appraiser have to assume?
A well-prepared appraisal should make that distinction clear.
For a broader discussion about defensibility, you may also find this article helpful:
Comparable Sales Don't Completely Solve the Problem
Strong comparable sales remain essential.
But even excellent comparables cannot entirely eliminate uncertainty about the subject property's condition.
Suppose the strongest comparable is a renovated home that sold for $1.45 million.
Another largely original property sold for $1.25 million.
Determining where the matrimonial home fits between those transactions depends partly upon understanding its own condition and improvements.
Without reliable interior information, that analysis may require greater assumptions.
If you'd like to learn more about comparable selection in matrimonial matters, you may also find our article helpful:
"Comparable Sales Can Make or Break a Divorce Appraisal — Here's Why"
The Effective Valuation Date Still Matters
Drive-by assignments can become even more complicated when the appraisal is retrospective.
In matrimonial matters, the relevant question is often:
"What was the property's market value on the date of separation?"
That may require the appraiser to consider both the market conditions and the property's physical condition as they existed months—or years—earlier.
The appraiser therefore has two potential challenges:
Determining the appropriate historical market evidence and establishing the property's condition on that historical date.
For another discussion of retrospective matrimonial valuation, you may also find this article helpful:
Convenience Shouldn't Be Confused With Reliability
There are legitimate circumstances where an exterior-only appraisal may be appropriate.
Interior access may simply be impossible.
The occupant may refuse access.
The valuation date may be many years in the past.
Or the assignment may have other limitations that make an interior inspection impractical.
The important issue is recognizing the trade-off.
Convenience does not automatically mean the same level of property information is available.
In a straightforward file, that limitation may be manageable.
In a high-conflict separation where every assumption could eventually be questioned, it deserves much more careful consideration.
Good Documentation Becomes Even More Important
When an appraisal is completed without interior access, documentation becomes particularly important.
A well-supported report should clearly communicate:
The extent of the property inspection.
The effective valuation date.
The sources of property information relied upon.
Relevant assumptions and limiting conditions.
The comparable sales considered.
How the property's condition was addressed in the analysis.
The reasoning supporting the final opinion of value.
The appraisal should also be prepared in accordance with the Canadian Uniform Standards of Professional Appraisal Practice (CUSPAP).
This allows lawyers, mediators and the parties to understand both the opinion of value and the limitations under which that opinion was developed.
Final Thoughts
A drive-by appraisal can appear attractive in a high-conflict separation because it avoids one potentially difficult issue: gaining access to the matrimonial home.
But avoiding the inspection does not necessarily eliminate the underlying valuation problem.
It may simply replace an access problem with an information problem.
For Ontario family lawyers, the key question should therefore not simply be:
"Can the appraisal be completed without going inside?"
A better question may be:
"Will the available information allow the appraiser to develop a sufficiently supported opinion of value for the intended use of this particular file?"
When significant property value is at stake and the parties already disagree, a well-documented appraisal—with the greatest reasonable level of reliable property information—can provide a stronger foundation for negotiations and reduce the number of assumptions available for either side to challenge later.
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