After an exhausting house-hunting journey, you’ve finally found the perfect apartment. The agent quickly presents a document, urging you to sign and pay a deposit to secure the property. Staring at the dense Spanish text can be daunting. Many of us have been in this situation, so today, let’s talk about one of the most crucial steps in buying a property in Spain: signing the preliminary sales agreement.
What is a Preliminary Sales Agreement?
In simple terms, this agreement is a legally binding ‘pre-purchase contract.’ Before you and the seller go to the notary to sign the final deed of sale, you both sign this private agreement to set out the main terms of the transaction. The buyer pays a deposit, and the seller promises not to sell the property to anyone else within the agreed timeframe. Be aware, this isn’t just a casual draft—once signed, it’s legally enforceable!
Key Points to Scrutinize in the Agreement
Before you sign, no matter how good your Spanish is, it is highly recommended to have a lawyer review it for you. However, you should also be aware of the key details to check yourself. Make sure none of the following are missing!
| Key Item | Description & Notes |
| Buyer and Seller Information | Verify that names, NIE numbers, addresses, and other personal details are completely accurate. |
| Detailed Property Information | This includes the exact address and details from the Spanish purchase agreement, such as its registration number at the Land Registry. |
| Total Transaction Price | Confirm the final sale price, as well as the payment methods and schedule. |
| Deposit Amount | Clearly state the amount of the deposit and its legal nature (type of Arras). |
| Penalty Clause | This is crucial! If the buyer backs out, the deposit is forfeited. If the seller backs out, they usually must return double the deposit. |

The Three Types of Arras Agreements
You might not be aware, but there are three types of Arras agreements, each with very different legal implications. The most common is the Arras Penitenciales, which, as mentioned above, allows either party to withdraw from the contract with a financial penalty. The other two are Arras Confirmatorias and Arras Penales. These generally do not permit unilateral withdrawal; if one party defaults, the other can legally compel them to complete the sale. Therefore, before you sign, it’s essential to understand exactly which type of preliminary agreement you are entering into to protect your rights.
Here are a few tips from those who’ve been through it: Always request an up-to-date property information report (Nota Simple) from the Land Registry to confirm there are no outstanding debts or legal disputes. Allow yourself enough time for mortgage approval and specify the final deadline for signing the public deed at the notary in the agreement. Don’t just sign because the agent says ‘this is how everyone does it.’ In short, signing this agreement is a major step, and taking the extra time to understand every detail is well worth it. Do you have any experiences or pitfalls to share? Feel free to leave a comment and discuss below!