DeutschKey Points
- Agents earn 4.5% more on their own sales because their incentives are different from yours (principal-agent problem)
- You have unique information about your property that no agent will gather in three viewings
- When faced with uncertainty, people do not make rational decisions but instead follow cognitive shortcuts
- A 5-step framework helps you manage uncertainty instead of eliminating it
The structural problem: principal-agent asymmetry
Realtors sell their own homes for aprice premium of 4.5%compared to their clients' homes.
This is no coincidence. That's structure.
A broker receives 27,000 euros for a sales price of 900,000 euros and 3% commission. If he increases the price to 930,000 euros, he will earn an additional 900 euros. In return, he risks a deal falling through, lengthy negotiations or a buyer dropping out.
The calculation: 27,000 euros in secure commission versus 900 euros in possible additional income. Nobody risks the larger sum for the smaller.
This is the principal-agent problem. Your service provider has different incentives from you. Not out of malice, but because the structure shapes behaviour that way.
Key point:Brokers optimise for quick deals, not maximum prices. This is due to the structure, not the character.Why you feel at a disadvantage
You might sell once in your life. The broker does this a hundred times a year.
He knows the wording. The tactics. The market prices. The negotiation tricks.
You stand there with your unique life decision and feel like an amateur.
But here is the thing:information asymmetry works in both directions.
The broker knows more about the process. You know more about your property. About the hidden qualities. About the neighbourhood. About the little details that make the difference.
The problem is not that you are inferior. The problem is that you do not recognise your advantages.
Key point:The asymmetry runs in both directions. You have knowledge advantages about your property that the agent will never achieve.The hidden information advantages you are not using
Owners often present their property with incomplete information, poor photos and afar too high a price.
At the same time, they possess unique information:
Lived experience.You know how the flat feels in winter. How loud the street really is. Which neighbours are friendly. This is not data. That is context.Emotional connection.You know the corner where the light falls perfectly in the morning. The balcony where you spent hundreds of evenings. These details sell real estate. Not square metres.Long-term perspective.You know how the neighbourhood has developed. What infrastructure is coming. What problems were solved. This is knowledge that no agent can gather in three viewings.But you do not take advantage of these benefits. Because you think they are irrelevant. Because you think only numbers count.
That is wrong.
Key point:Your property knowledge is valuable. But only if you use it specifically instead of ignoring it.Decisions under uncertainty: why you feel paralysed
Under uncertainty, the economic actor does not make rational decisions. He succumbs toheuristics and cognitive errorssuch as preference reversal, focal points and loss aversion.
You construct preferences at the moment of decision. Not before. Not rationally. But situationally.
This explains why you feel paralysed.
You are waiting for the perfect time. For the perfect information. For the certainty that you are making the right decision.
But that certainty never comes.
The 2025 market is stable. Nobody can guarantee that this will still apply in 2026. Interest rates, inflation, government regulations – all variables that you do not control.
Anyone who waits too long risks the market environment deteriorating. Anyone who sells now plans with known framework conditions.
That is not a guarantee. This is risk minimisation.
Key point:There is no such thing as perfect certainty. Anyone who waits plans with uncertainty. Anyone who acts now plans with known conditions.A framework for clear decisions despite uncertainty
I have learnt: you do not eliminate uncertainty. You manage it.
Here is the framework that works:
1. Accept the asymmetryYou will never know as much about the process as an agent. That is fine. Your advantage lies elsewhere. Recognise where your information advantages lie and actively use them.
2. Separate facts from heuristicsWith every decision, ask yourself: is this a fact or a mental shortcut? Losses feel twice as powerful as gains. This is loss aversion. Not reality.
3. Define your non-negotiablesWhat has to happen for you to consider the sale a success? Price? Time frame? Type of buyer? Write it down. Before the first viewing. Not during it.
4. Build redundancy into your information sourcesDo not rely on one person. Get multiple valuations. Talk to neighbours who have sold. Check sales prices of comparable properties. Triangulate your data.
5. Plan with known framework conditionsYou cannot predict how the market will develop. But you can work with what you know today. That is not weakness. That is pragmatism.
Key point:Uncertainty cannot be eliminated. But you manage it through clear criteria and redundant sources of information.The double perspective as an advantage
I am on both sides. I sell for myself. I accompany others in sales.
This gives me something that pure service providers do not have: I know both perspectives without any loss in translation.
When I say "I understand your insecurities," it is not just an empty phrase. I stand in the same place in parallel. I make the same decisions. I bear the same risk.
This is the difference between theory and lived experience.
Behavioural economics has created a framework for this. Kahneman and Tversky received the Nobel Prize for integrating psychological research into economics. Their work shows that people do not make objective, rational decisions. They construct preferences in the moment.
When you understand this, you stop looking for the perfect decision. You start making the best decision with the information available.
Key point:The double perspective eliminates the loss of translation. Anyone who has lived both sides understands without explanation.What you can do now
You feel at a disadvantage because the system is built that way. But you are not powerless.
Use your hidden information advantages. Separate facts from heuristics. Define your non-negotiables. Build redundancy into your information sources.
And stop waiting for perfect certainty.
It is not coming.
But you can still make clear decisions. With the information you have. With the knowledge you possess. With the perspective that only you have.
This is no guarantee of a perfect outcome. But it is the way back to control.
Frequently asked questions
Why do I feel so insecure about selling real estate?Because you sell once, whilst brokers carry out hundreds of transactions per year. The asymmetry of experience is real. But it only affects the process, not your property knowledge.
Are brokers fundamentally dishonest?No. Brokers act rationally within their incentive structure. With a 3% commission, the risk for an additional profit of 900 euros is not worth it. That is not dishonesty – that is economics.
What information is really important when selling?Three levels: property knowledge (what is life like here), market knowledge (comparable sales) and process knowledge (procedure, timing). You own level 1 entirely. You get level 2 through research. You get level 3 through professional guidance.
How do I know whether a broker represents my interests?Ask about his sales strategy for your property. Check how many valuations he obtains. Observe whether he pushes you or gives you time. Pay attention to whether he uses or ignores your property knowledge.
When is the right time to sell?When your personal circumstances require it and the market is stable. 2025 offers familiar conditions. 2026 is speculation. Nobody sells at the absolute perfect time. The goal is good timing, not perfect timing.
What do I do if I receive conflicting valuations?That is normal. Get at least three valuations. Analyse the methodology behind each figure. Ask about comparable sales. The truth is rarely the highest number.
Can I sell without an agent?Yes. But you then bear the risk of legal complications alone. The question is not whether, but when it makes sense. With a clear market, a straightforward property and sufficient time: feasible. In complex situations: risky.
What does loss aversion actually mean when selling real estate?You value a possible loss twice as much as a possible gain. That is why you hold on to unrealistic prices. Not out of greed, but out of fear. Recognising this helps you to remain rational.
Key takeaways
- The principal-agent problem explains why agents earn 4.5% more on their own sales. Their incentives are structurally different from yours.
- Information asymmetry works bidirectionally. You have property knowledge that no agent can achieve in a short time.
- When faced with uncertainty, people take cognitive shortcuts rather than engaging in rational analysis. Knowing this protects you from typical poor decisions.
- A structured framework manages uncertainty through clear criteria, redundant sources of information and acceptance of known framework conditions.
- The double perspective of personal selling experience and professional advisory experience eliminates the loss of translation between consultant and owner.
- Perfect certainty does not exist. The best decision available with current information beats endless waiting for the perfect moment.
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