Guide · Choosing an estate agent

Choosing an estate agent: 12 questions to ask

Twelve questions on model, commitment and cost – whichever agent you choose in the end. With legal references, not opinions.

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Every question with a law article, ruling or official source · As of 9 October 2026 · Dominik Devaja

On this page
  1. Why does a fixed list of questions help before you choose an agent?
  2. Does a sole agency agreement with a fixed term bind you no matter what?
  3. What does acting for both sides mean, and is it actually forbidden?
  4. Does an estate agent need a licence in the Canton of Zurich?
  5. To be honest
  6. Frequently asked questions

And does a signed sole agency agreement bind you no matter what?

Why does a fixed list of questions help before you choose an agent?

Two draft contracts lie on the table. Both sound convincing, both promise the best possible sale. But which question actually shows the real difference, before you sign? No sales line answers that. Only a fixed set of questions does.

Each of the twelve questions here rests on a rule in the Swiss Code of Obligations or on a Federal Supreme Court ruling.1 None of them rests on an opinion about one provider. That way you check every agent by the same standard, whatever their model.

The questions follow urgency: first the model and your contact person, then commitment and cost. Formalities such as the commercial register and the right of withdrawal come last. None of them assumes anything about an agent’s conduct. Each stays tied to your own legal position or to a fact checked here.

What this means for you: an evasive answer says more than the answer itself. Ask for it in writing before you sign. With a serious provider, that is normal.

Does a sole agency agreement with a fixed term bind you no matter what?

Many owners assume a signed sole agency agreement (Alleinauftrag) with a fixed term binds them until the agreed end date. The Federal Supreme Court disagrees.2 The same principle applies to every agency contract in Switzerland.1

Either side may withdraw from the contract at any time, even with a fixed term and an exclusivity clause.2 This right of withdrawal is mandatory and cannot be excluded by contract.5 Signing does not mean being locked in.

That said, withdrawal is not always free of consequence. If it comes at an unfair time (zur Unzeit), it can trigger a claim for damages.1 A contractual penalty is a payment agreed in the contract for one specific breach. It still falls due if you triggered it before the withdrawal.2 That penalty must not, however, make the withdrawal itself harder.2

What this means for you: a court can reduce an excessive penalty on request.1 Ask about the amount and conditions of any penalty clause before you sign, not only after a dispute.

What does acting for both sides mean, and is it actually forbidden?

Acting for both sides (Doppelmäkelei) means the same agent works for you and for the buyer at the same time. That sounds like an obvious conflict of interest.

It is not forbidden outright. If the agent acted for the other side in breach of the contract, they forfeit their entire fee and any expenses.1 The same applies if they had themselves paid for it in a way that breaches good faith. The mere promise of such payment is enough.

The Federal Supreme Court allows it, however, in one situation. The agent then only points out to both parties the possibility of a contract with the other side.4 That is called pure introduction (reine Nachweismäkelei). It is something different from actively negotiating for both sides at once.

What this means for you: ask your agent directly whether they also act, or could act, for the buyer. Ask for written disclosure, especially if a third party pays part of the fee.

We answer all twelve questions for you in writing – before you sign, not only afterwards. Alongside it, the free valuation with a net calculation shows what your sale actually leaves you after tax and costs.

Value my propertyFree and without obligation · Personal reply from Dominik Devaja

Prefer to talk? +41 76 325 11 95 – you speak directly with Dominik Devaja.

Does an estate agent need a licence in the Canton of Zurich?

The Canton of Zurich had a licensing requirement for the commercial brokerage of residential and commercial premises until the end of 2011. It was abolished on 1 January 2012.7

The canton’s official overview of trade and business licences lists no separate licence or notification requirement for estate agents today.6 The page presents itself as an overview of the main duties and states that its information is not legally binding. We did not check this question for other cantons here.

What does this mean for your choice? The absence of a licensing requirement is not a seal of quality. What you can check instead is the commercial register entry: it shows who stands legally behind the offer and is liable. It says nothing about professional qualification.

Ask for references for comparable sales in your region as well, not only the register extract. Together, the two give you a more honest picture than a website alone.

The twelve questions to ask

  1. Which model will you be paid under?A good answer names a clear model, a fixed fee, a percentage commission, a buyer-pays or platform model, or a base fee plus a share of any surplus price, and explains it in one sentence. The law only requires that a fee is owed, not which model applies.1 The choice is a matter of contract. More on this: the four agent models compared.
  2. Who is your contact, from the first meeting to completion?A good answer names one actual person, not just a firm. Ask whether that person stays with you, or whether your case can be passed to a platform or a partner. Whether the agent must carry out the instruction personally is settled most clearly by the contract itself – so ask for written confirmation.
  3. What happens to the fee if the sale price falls short of, or far exceeds, what was expected?A good answer separates two things. Whether any fee at all is owed depends on an actual sale going through.1 How high it is stays a matter of your contract. If the agreed fee is disproportionately high, a court can reduce it on request, a right that cannot be waived in advance.4 And if the purchase contract is subject to a condition, the fee is only due once that condition is met.1
  4. Who sets the reference value for a share of the surplus price?A good answer names an independent market-value appraisal, not the agent’s own estimate, and fixes it in writing in the contract before you sign, not after. Be careful with the official tax value: in the Canton of Zurich it sits at 70 to 100 per cent of market value, which makes it unsuitable as a reference value.8
  5. Is this a simple agency instruction or a sole agency agreement?A good answer explains the difference in plain words. Under a simple instruction, another agent may also work for you. Under a sole agency agreement, you commit to a single agent, and in return that agent must actually become active, while remaining free in the choice of advertising.23
  6. How long are you bound, and how do you end the agreement?A good answer confirms that you may withdraw at any time, even with a fixed term and a sole agency clause, since this right is mandatory.25 A withdrawal at an unfair time can, however, trigger a claim for damages.1
  7. Does a contractual penalty survive a withdrawal?A good answer distinguishes: a penalty agreed for a breach committed before the withdrawal remains payable. It must not, however, make the withdrawal itself harder.2 A court can reduce an excessive penalty on request.1
  8. Does the agent also act for the buyer?A good answer discloses this without being asked twice. Acting in breach of contract or of good faith for both sides costs the agent their entire fee.1 Pure introduction for both parties can be allowed4, so ask for written disclosure anyway, including any payment from third parties such as lenders or portals.
  9. Is a fee still due if the property is not sold in the end?A good answer points to the contract, not to a general rule. Reimbursement of expenses without a sale is only owed if it was expressly promised, but then even without a sale going through.1 Without such a promise, a fee stays tied to an actual sale.
  10. Do you still owe a fee after the contract ends, if someone the agent introduced buys only later?A good answer explains the causation principle: a fee is only owed if the sale actually goes back to the agent’s work.1 Some contracts set a tail period for this. One published ruling shows, as an example, a clause of up to one year after the contract ends, not a fixed statutory term.3 Read this clause closely in your own contract.
  11. Is the provider listed in the commercial register, and can they show references?A good answer gives you both without fuss. The commercial register entry shows who stands legally behind the offer and is liable. It says nothing about professional qualification. A cantonal licensing requirement for estate agents is not listed officially in the Canton of Zurich.6
  12. Were you told in writing, before you signed, whether and how you can withdraw?A good answer explains the difference between a contractual and a statutory right of withdrawal. A statutory right for contracts concluded away from business premises applies only in limited cases, and not if you asked for the conversation yourself.1 Whether it applies to an agency contract for selling land is not conclusively settled in law, so ask for a contractual arrangement instead.

To be honest

Do you need an estate agent at all?

An estate agent is not a legal requirement in Switzerland. The only mandatory step is the public deed (öffentliche Beurkundung) for the purchase contract, made by a notary.1 You may negotiate and complete a sale directly with a buyer at any time.

These twelve questions do not expose any model or any provider as wrong. They only show how clearly, and how much in writing, a provider answers. A question that is dodged or left unanswered often says more than the answer itself.

We, too, answer these twelve questions in writing, before you sign, not only afterwards.

What else do owners ask?

Are all twelve questions equally important with every agent?

The order follows urgency, not a fixed ranking. With a sole agency agreement, the questions on commitment and penalty clauses carry particular weight. With a simple introduction and no exclusivity, the model, fee timing and expenses matter most.

Does an agency contract have to be in writing?

No. The law sets no form requirement for an agency contract, so in theory even an oral agreement is enough.1 That is exactly why a written, specific answer to each of the twelve questions matters so much.

What do you do if the agent does not answer your questions clearly?

That is itself an answer. Asking for a written, precise answer to all twelve questions before you sign is legitimate and normal practice, with any provider.

Does this list only apply to a sale in the Canton of Zurich?

No. Agency contract law is federal law and applies the same way across Switzerland.1 Only the licensing question and some tax questions are cantonal.

Can you still end a signed sole agency agreement?

Yes. This right of withdrawal is mandatory, even with a fixed term.2 A contractual penalty for an earlier breach can, however, still apply.

How is this list different from a comparison portal?

A comparison portal places offers side by side. This list instead checks the contract itself, question by question, with a legal reference and a court ruling behind each one, whichever provider you choose in the end.

For daughters and sons

Researching this for your parents?

You may read your parents’ draft contract more closely than they do themselves. Take these twelve questions to the next meeting, as a list, not as a verdict already made.

That way, your parents see that nobody is pushing them towards a decision. And you remain the son or daughter who cares, not the one who decides.

General information without guarantee, not individual advice. The law, the tax assessment and advice from professionals for your situation are what count. Terms of use

Twelve questions, one duty to answer

A clear answer counts for more than any sales promise.

Ask us the same twelve questions. We answer all twelve in writing, before you sign.

Value my propertyFree and without obligation · Personal reply from Dominik Devaja

Prefer to talk? +41 76 325 11 95 – you speak directly with Dominik Devaja.

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