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What to Do If You Disagree With a Property Valuation
A calm, practical process for checking facts, asking for an explanation and deciding what to do when a Dutch property valuation does not look right.

Does this situation match your question?
If a property valuation looks too high, too low or simply difficult to follow, you need a way to test the concern before reacting. This process is for homeowners, buyers, sellers, mortgage applicants and people dealing with an estate or division of assets.
Before you rely on the result, compare the valuation report contents with the question the assignment had to answer.
The first useful question is not “what number did I expect?” It is “which part of the assignment or evidence do I think is wrong?” A different opinion can be valid without proving that the first report contains an error. Separating those possibilities keeps the next step proportionate.
Before you rely on the result, compare the valuation report contents with the question the assignment had to answer.
TL;DR: check before escalating
Read the report once for the conclusion and a second time for the evidence behind it. Then sort your concern into one of four groups:
Before you accept a quote, ask how property valuer independence is protected when several parties are involved.
- Fact: an address, size, ownership detail, condition or document is wrong or missing.
- Method: you do not understand how the evidence led to the conclusion.
- Scope: the report answered a different question from the one you needed answered.
- Recipient: the lender, court, tax adviser or other user has requirements the report does not meet.
Send a short written list of specific questions to the appraiser. Ask for a correction when a verifiable fact is wrong. Ask the report recipient what it needs when acceptance is the problem. Request an independent second opinion when the disagreement remains substantive after the first explanation.
Before you appoint a provider, verify property valuer registration when the assignment requires a registered professional.
If you want a second pair of eyes before choosing a next step, compare property appraisers and give each provider the same report purpose and evidence.
Four questions that define the problem
Is the input factually correct?
Check the address, floor area, plot, tenure, ownership, construction year, renovations and any restrictions. Compare the report with documents you supplied and with the property as inspected. A factual correction is different from an argument that the market should have produced a different value.
Is the valuation question clear?
Market value, a value for mortgage finance, a value at a past date and a value for an estate can have different assumptions. Write down the valuation date, purpose and intended user. If one of these changed after the inspection, the report may no longer answer the same question.
Can you follow the evidence?
Look for an explanation of the property, condition, location and comparable homes. The report does not have to use the same comparables you would have chosen, but it should make the reasoning possible to inspect. If you cannot follow the chain from observation to conclusion, ask a focused question rather than asking for “a higher value.”
Is acceptance the real issue?
A report can be professionally prepared and still be unsuitable for a particular recipient. A mortgage lender may require a validated report or a recent valuation date. A private estimate may not meet that condition. Ask the recipient first when the problem is format or acceptance.

If the property is in or near Aalst, compare the disputed property facts with the location and condition details from a property valuation in Aalst before deciding whether the report’s conclusion is wrong.
What registration can and cannot prove
When registration matters to the assignment, check the person who inspected and signed the report in the relevant register. Registration is useful evidence about professional status. It does not prove that every assumption in one report is correct, that the person has handled your property type recently or that a particular lender will accept the report.
That distinction also helps when you compare explanations. Ask the appraiser to identify the evidence, rule or assumption behind the disputed point. You are looking for a traceable explanation, not a promise to change the number.
Check relevant experience
Experience is most useful when it matches the difficult part of the assignment. An apartment with a homeowners’ association file, a property on leasehold, a listed building or a home with unusual renovation work can require different evidence from a standard house.
Ask who will do the inspection, how often they handle the relevant property type and which documents they want before the visit.
A proportionate review process
Start with a written list of no more than five specific points. Quote the page or section, state the fact you believe is wrong, and attach the document or observation that supports your question. Ask whether the issue affects the conclusion or only the description.
Give the appraiser a chance to explain the reasoning. If a fact is wrong, ask whether a corrected report or addendum is appropriate. If the answer concerns professional conduct, use the applicable complaint route after checking what that route can decide. A complaint process can review conduct or standards; it does not automatically order a new value.
Request a second opinion when the issue remains material and you can state the question clearly. Give the new appraiser the original report and your concerns, while asking for an independent assessment rather than a target number.
Red flags that justify a closer review
Take a closer look when the report contains an incorrect address or property type, unexplained omissions, a valuation date that does not match the assignment, a report user who is not the intended recipient, or a conclusion that is not connected to the described evidence. These are reasons to ask questions, not automatic proof of misconduct.
Be cautious if someone offers to “fix” the value before seeing the report or asks you what number you need. A trustworthy review starts with the assignment and evidence.
Questions to ask about the report
- Which factual input would change the conclusion if corrected?
- Which comparable properties carry the most weight, and why?
- Which assumptions were necessary because information was unavailable?
- Does the report meet the recipient’s format, validation and age requirements?
- Would a corrected fact require an addendum, a new inspection or a new assignment?
Decide what happens next
Use the smallest action that resolves the actual problem:
- Factual error: request a written correction or explain why the fact cannot be changed.
- Unclear reasoning: request an explanation tied to the evidence.
- Different professional judgment: consider an independent second opinion.
- Wrong scope or recipient: clarify the assignment before commissioning more work.
- Conduct concern: document the issue and use the relevant complaint process.
This sequence avoids paying for a second report when a missing document would have resolved the concern. It also avoids treating a second number as proof that the first professional acted improperly.
FAQ about disputed valuations
Can I ask an appraiser to explain a valuation?
Yes. Ask specific questions about facts, evidence, assumptions and the route to the conclusion. A clear question is easier to answer than a request to “revalue the house.”
Should I order a second valuation immediately?
Not always. First check facts, purpose and report-recipient requirements. A second valuation is most useful when a material issue remains after that review.
Can a complaint change the property value?
A complaint or disciplinary route may examine conduct or professional standards. It is not automatically a mechanism for setting a different market value or ordering a new report.
What if the lender rejects the report?
Ask the lender for the exact requirement and give it to the appraiser. The issue may concern validation, age, format or intended use rather than the value itself.
Beste Taxateur helps you separate factual errors, method questions and report requirements when you disagree with a property valuation. The lender, adviser or other report recipient decides which correction or new report it can accept.
Ask a question about a disputed valuation