The agent who says your house is worth the most clearly knows the market best.
That is what most sellers believe when three appraisals come back forty to sixty thousand dollars apart. It feels like common sense. More market knowledge should mean a more accurate number, and the agent who arrives at the biggest figure must simply be the one who has done their homework properly.
The Appraisal Variation Sellers Take at Face Value
Three appraisals on the same property rarely land as close variations on one number. The gap between them is often wide enough that one figure has to be significantly off the mark. Few sellers pause to work out which one that is. The instinct instead runs toward the largest figure, since it happens to match what the seller was hoping to hear from the start.
An appraisal is not just a valuation. It is also, whether stated or not, a pitch for the listing itself. Two agents can walk through the same property, see the same comparable sales data, and still arrive at figures tens of thousands of dollars apart, because one of them is pricing the house and the other is pricing the opportunity to win the trust of the seller. Sellers who grasp this early tend to interview agents very differently For sellers still deciding who to trust with the campaign get the details is worth a look before that first meeting. Whichever agent walks through the door first, this dynamic is usually already in play.
Why the Biggest Figure Rarely Reflects True Value
An agent quoting a high figure is not necessarily demonstrating superior market knowledge. Often they are demonstrating a willingness to tell the seller what they want to hear in order to win the mandate. This is not always deliberate deception. Some agents genuinely believe their optimistic number, at least until the campaign runs and the market fails to agree with them. Either way, the seller ends up choosing an agent based on a number that was never really about the market at all.
What makes this uncomfortable is that sellers rarely find out until the campaign is well underway, once the property has sat on the market for weeks without the level of interest the original appraisal implied it should get. A closer look at how this plays out shows the pattern clearly For anyone comparing notes before appointing anyone this page gives a clearer sense of what actually matters here. Either way, this is the kind of thing worth knowing before the first inspection, not after.
What Separates a Reliable Appraisal From an Optimistic One
The appraisals worth trusting are rarely the ones stated with the most enthusiasm. They are the ones supported by specific comparable sales, recent settlement data, and an honest account of what buyers have actually paid for similar properties nearby in recent months. An agent who can walk through the evidence behind their number is doing something fundamentally different to one who simply asserts a figure with confidence. Confidence of delivery and accuracy of number are not the same thing, and sellers who cannot tell the difference tend to select for the wrong one.
There is an easy way to test this. An agent whose number genuinely holds up can usually name the specific sales it is based on, within a sensible timeframe and a genuinely comparable location. An agent leaning mostly on optimism tends to talk in vague terms about a strong market, without ever pointing to anything concrete behind the figure just quoted.
The property is not the problem here. The appraisal process is.
What Sellers Should Be Evaluating Instead
The question worth asking is rarely who thinks the property is worth the most. It is closer to: who has a defensible strategy for reaching genuine market value, and who is prepared to have an honest conversation if the campaign does not move at the quoted figure straight away. The track record of an agent on this specific point, how they have handled properties that needed a price adjustment mid-campaign, tends to reveal far more than any single number offered at the first meeting.
This is also where a direct question tends to teach a seller the most. An agent willing to talk through what happens if the opening weeks do not go to plan is behaving very differently to one who has only ever discussed the upside.
Frequently Asked Questions
What explains the gap between appraisals on an identical property?
Appraisals combine genuine market judgement with an incentive to win the listing, and different agents weigh those two things differently. The spread between quotes often reflects that incentive as much as it reflects the property itself. An agent under pressure to secure new business has a reason to lean optimistic that has nothing to do with the comparable sales in the area.
Is it ever safe to just go with the highest number quoted?
On occasion, yes, but only when the evidence behind it earns that trust, not because it happens to be the biggest figure quoted. A high number backed by real comparable sales bears little resemblance to one offered purely to secure the business, and asking what it is actually based on is the only way to separate the two.
What questions reveal more than simply asking what the house is worth?
Asking what the number is actually based on, and how the agent intends to respond if the property does not draw offers at that figure early in the campaign, usually reveals more than the appraisal itself. It also tends to expose which agents are comfortable defending their figure and which were quietly hoping the question would not surface.
Does the size of the appraisal reflect the quality of the agent?
Not really. A lower figure backed by an agent who can clearly walk through the comparable sales is often a far stronger signal than a higher one with nothing behind it. Sellers who choose agents based purely on the size of the quoted figure are optimising for the wrong thing entirely.
Rather than a true measurement of the house, an appraisal is really an opening bid for the listing itself, and sellers who recognise this early tend to choose very differently to those chasing the highest figure. Across the Gawler District and the northern Adelaide corridor, where the spread between agent appraisals can be just as wide as elsewhere in Adelaide, this distinction matters more rather than less, given how fast a mispriced campaign can lose momentum where comparable listings surface close together.