Preliminary Real Estate Sale Agreement – A Legal Guide to Safe Property Transactions

21/01/2026

The preliminary real estate sale agreement is one of the most commonly used legal instruments in real estate transactions. Although it is often perceived as a mere “formality”, a properly drafted preliminary agreement can play a crucial role in protecting the interests of both the buyer and the seller.

Below you will find a detailed guide explaining what a preliminary real estate sale agreement is, why it is useful, and what you should pay close attention to before signing.

What Is a Preliminary Real Estate Sale Agreement?

A preliminary real estate sale agreement is a legal document used in the process of buying or selling an apartment, house, land, or commercial property. By entering into this agreement, the parties undertake the obligation to conclude a final sale agreement in the future under previously agreed terms.

A preliminary agreement typically includes:

identification of the buyer and the seller
a precise description of the property
the purchase price
the deadline for concluding the final sale agreement
provisions on an earnest money deposit or advance payment

Such agreements are most commonly used when not all conditions for the final sale have yet been fulfilled, for example obtaining a bank loan, completing condominium registration, or removing encumbrances from the property.

Why Is a Preliminary Real Estate Sale Agreement a Good Choice?

1. Increased Legal Certainty

A well-drafted preliminary agreement clearly defines the rights and obligations of the parties and significantly reduces the risk of disputes.

2. Reservation of the Property

The buyer secures the property and prevents it from being sold to a third party, while the seller gains assurance of the buyer’s serious intent.

3. Earnest Money Deposit as Security

In practice, a preliminary agreement is often concluded with the payment of an earnest money deposit, which serves as an additional guarantee of performance and clearly regulates the consequences of withdrawal.

4. Flexibility in the Transaction Process

The preliminary agreement allows the parties additional time to fulfill agreed conditions without losing control over the transaction.

Does a Preliminary Real Estate Sale Agreement Have to Be Notarized?

A preliminary real estate sale agreement does not need to be notarized in order to be legally valid. However, it must contain all essential elements of the future final sale agreement and be drafted clearly and precisely. Notarization of signatures is required only for the final sale agreement, which serves as the legal basis for transferring ownership and registering title in the land registry.

What Should You Pay Particular Attention to?

1. Land Registry Status

Before signing a preliminary agreement, it is essential to verify ownership and check for any encumbrances, such as mortgages or notices recorded in the land register.

2. Accurate Property Description

The property must be described accurately and unambiguously, in accordance with land registry data and the actual situation on site.

3. Clear Deadlines

The agreement should clearly specify the deadline for concluding the final sale agreement, as well as deadlines for fulfilling any additional conditions.

4. Earnest Money vs. Advance Payment

It is important to clearly distinguish between an earnest money deposit and an advance payment, as they have different legal consequences in the event of withdrawal.

5. Consequences of Non-Performance

A quality preliminary agreement should regulate what happens if one of the parties fails to fulfill its contractual obligations.

Why Seek Legal Assistance When Concluding a Preliminary Agreement?

Although preliminary agreements are often concluded without notarization, drafting errors can lead to serious legal and financial consequences. Professional legal assistance helps protect the interests of both parties and reduces the risk of future disputes.

Conclusion – How to Safely Conclude a Preliminary Real Estate Sale Agreement

A preliminary real estate sale agreement is a valuable legal instrument when properly drafted. Although notarization is not required, its legal consequences can be significant. Before signing such an agreement, timely legal advice is recommended to ensure that the entire property transaction proceeds safely and without unpleasant surprises.

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