Notary and public deed
The notary provides legal certainty at completion, but does not replace prior checks on the property.
In a property purchase in España, the notary identifies the parties, verifies their legal capacity and authority to represent, reviews relevant legal and Land Registry information, checks certain documents and payment methods, and authorises the public deed. Their role is impartial: they advise both buyer and seller, but do not act as the exclusive lawyer for either party.
The notary formalises the purchase through a public deed and carries out checks on identity, legal capacity, authority to represent, the seller's title, Land Registry information, property-related documentation and payment methods. They also inform the parties of the relevant legal and tax consequences. However, the notary's office does not replace a municipal planning check, a technical inspection, a financial valuation or an independent legal review of the buyer's specific risks.
Key features
What the notary checks in a property sale
The notary's role is not limited to observing the buyer and seller sign. The deed is prepared based on a series of checks, documents and statements that make it possible to formally execute the transfer in legal terms.
Identity and legal capacity
The identity of those appearing is checked, along with their legal capacity to enter into the transaction. When someone acts through a representative, the authority of representation must be verified as well as whether the power of attorney is sufficient for the specific act.
Ownership and Land Registry
Before execution, the relevant Land Registry information is obtained and reviewed to verify who is recorded as the owner and which registered charges or rights may affect the property.
Price and payment methods
The deed must identify the price and the payment methods used in accordance with the applicable regulations. Supporting documents and traceability must be prepared before attending the signing.
Cadastral reference
The cadastral reference and the relevant cadastral documentation form part of the checks carried out for the transaction. Discrepancies between the Catastro, Land Registry, deed and physical reality may require additional action.
Community and documentation
For properties subject to a homeowners' association, the documentation relating to community fees is reviewed under the applicable terms. Other documents may also be required depending on the property.
Information and advice
The notary provides impartial information to the parties about the content of the document, its effects and the legal and tax obligations relevant to its execution.
Not all property sales require exactly the same documents. A property in sada, a new-build property, a transaction involving a company, a purchase under a power of attorney or a mortgage-financed purchase may involve additional specific checks.
An important limitation
What should not be assumed to have been checked simply because the deed is signed before a notary
The public deed provides a high level of legal certainty, but it does not automatically make all physical, planning, financial or technical aspects of the property correct.
- It does not replace a specific planning review with the relevant authority.
- It is not equivalent to a technical inspection of the property's condition.
- It does not confirm that a specific renovation or extension has all the necessary licences.
- It does not determine whether the negotiated price is financially favourable for the buyer.
- It does not replace the analysis of contracts, risks and conditions carried out for a specific party.
- It does not remove the need to resolve material discrepancies between the Land Registry, Catastro and the physical reality.
For these checks, see the specific guide to due diligence before buying a property in España .
Practical example
A property may match its registered owner and be properly prepared for the deed, yet have a physical extension whose planning status in deba must be verified separately.
Notarial signing should not be used as a substitute for a municipal or technical check when that issue is material to the purchase.
The notary must act impartially. A lawyer retained by the buyer, where one is used, can analyse the transaction specifically from the perspective of that buyer's interests and examine particular contractual or legal risks in greater depth.
Deed of sale
Why the public deed is the key completion document
A property sale can be made through a private agreement, but the public deed provides particularly strong evidence of what has been agreed and is the usual title document allowing the new ownership to be entered in the Land Registry.
Formalises what has been agreed
It identifies the parties, the property, the price, the method of payment, the declarations and other conditions that deban be recorded in the public instrument.
Provides public authentication
The document executed before a notary provides evidential and legal effects beyond those of a simple private document.
Allows registration to proceed
After execution, the title document may be submitted to the Land Registry to apply for registration of the new ownership.
That should not be stated categorically. A sale and purchase agreement may be executed privately. However, a public deed is the standard method for final formalisation and is essential where the acquisition is to be registered in the Land Registry.
Preparing for completion
What should be resolved before going to the notary's office
Completion works best when the legal, financial and documentary matters have been organised in advance. It is not advisable to leave decisions until the same day that could affect whether the purchase is advisable.
Due diligence completed
Ownership, encumbrances, Catastro, homeowners' association, occupancy, contracts, planning status and other relevant checks should already have been revisadas.
Documentation prepared
The identity of the parties, representation where applicable, property documentation and relevant certificates must be coordinated well in advance.
Payment arrangements in place
It must be clear how much is payable at closing and what amounts were paid beforehand, which payment method will be used and which supporting documents will evidence each transaction.
Identified tax treatment
The buyer must know which tax regime applies to the type of transfer and to the specific jurisdiction, without applying generic rates from another autonomous community.
Clear handover and possession
It must be understood when handover takes place, what the occupancy status is and which outstanding conditions must be reflected in the transaction.
Power of attorney if someone represents the buyer
If a party does not sign in person, the power of attorney must be valid and sufficient for the specific acts to be carried out by the representative.
Foreign buyers
Identification, representation and funds must be addressed before closing
A foreign buyer may need to prepare additional documentation relating to their identification, NIE, purchase structure, representation and the traceability of the funds used. The specific documentation depends on the transaction.
- Valid identity document.
- NIE where required for the transaction and related formalities.
- Information on tax residence where relevant.
- Sufficient power of attorney if a representative signs.
- Documentation supporting the source of funds in accordance with applicable checks.
- Advance coordination of international transfers or payment methods.
Explore these matters further in the guides on NIE for buying property, source of funds y power of attorney.
The documentation that may be requested by a notary, financial institution or other obliged entity depends on the parties, transaction structure, source of funds, representation and specific circumstances. It is advisable to confirm the requirements for the file before transferring the purchase price.
The day of completion
What usually happens at the notary's office
The execution brings together the checks prepared in advance, the explanation of the document, the parties' consent, the formalisation of payment and the signing of the deed.
The parties or their representatives appear, and their identity, legal capacity and authority to represent are verified, as applicable.
The contents of the deed are reviewed and questions are addressed, and the parties give their consent to the documented transaction.
The applicable payment methods are recorded and the deed is executed. The tax and Land Registry stage of the transaction then begins.
The purpose of the notarial process is not for the parties to sign a text they do not understand. Questions about the content of the instrument, its clauses or its consequences should be raised before giving consent.
If you are buying with a mortgage
A mortgage loan involves its own notarial process
When financing falls within the scope of property credit regulations, the mortgage has its own information and transparency stage. The purchase deed should not be confused with the loan documentation and checks.
- The financial institution must prepare the applicable pre-contractual documentation.
- The buyer must understand the loan terms before signing it.
- The notary's role includes the advice and checks required for financing.
- Loan approval still depends on the financial institution and the application.
Two coordinated transactions
When financing is involved, the purchase and mortgage may coincide at completion, but legally they should not be treated as a single matter.
Purchase taxes, acquisition costs and financing costs must also be kept separate in the budget.
After the deed is signed
Signing is not the final step in the purchase
After execution, the tax obligations must be completed and the registration obligations of the acquisition must be fulfilled, and the transaction documentation retained. Certain procedures can be handled through the notary's office when that service is engaged.
Land Registry filing
The deed can be filed electronically with the Land Registry to begin the registration process.
Taxes
The applicable taxes must be paid or processed according to the type of acquisition and the applicable jurisdiction.
Copies and record-keeping
It is advisable to retain the deed, proof of payment, tax assessments, prior contracts and other relevant documentation.
New ownership
After closing, the homeowners' association, utilities, insurance, direct debits and other practical matters for the new owner must also be arranged.
See separately the taxes when buying a home in España and the total purchase costs .
Do not confuse institutions
The notary, Land Registry and Catastro serve different functions
All three institutions are involved in the same purchase, but none should be used as an automatic substitute for the others.
| Institution | Role in the purchase | It should not be confused with |
|---|---|---|
| Notary | They authorise the deed, identify the parties, carry out legal checks and formally record the execution. | A technical inspection or a full planning-law investigation of the property. |
| Property Registry | It publishes registered rights, ownership details and encumbrances, and processes the registration of the submitted title. | Catastro or a comprehensive planning-law compliance certificate. |
| Catastro | It contains cadastral and descriptive information about the property and also has functions related to taxation. | The Property Registry or the legal title to the property. |
If the floor area, description, boundaries, annexes or physical layout do not match between the deed, Registry, Catastro and the observed reality, the reason for the discrepancy should be determined before assuming it is irrelevant.
Common mistakes
Six mistakes to avoid before completion
Waiting until the notary appointment to review
Key due diligence must be carried out before the buyer is locked into a contractual position that is difficult to change.
Not reviewing the draft
Names, price, payment method, property description and conditions must be checked before signing.
Improvising payment arrangements
Transfers, cheques or other methods must be coordinated, identified and accompanied by the necessary documentation.
Confusing the Registry with planning law
The fact that a situation appears in Registry documentation does not in itself mean that all planning-law matters have been resolved.
Failing to verify authority to represent
When someone signs under a power of attorney, the document must properly cover the authority required for the specific transaction.
Overlooking the post-completion stage
Taxes, Land Registry and management of the new property must be assigned to a responsible person or professional.
Verified official sources
Legal and institutional framework used for this guide
These sources belong to the official AI Realty register and were revisadas on 8 August 2026. Tax, mortgage, planning or special documentation matters must also be checked with the competent authority for the specific case.
Continue by topic
Guides that complement preparation of the deed
This page focuses on the notary's role. Preliminary checks, contracts, financing and taxes have their own guides to avoid conflating purposes.
Professional coordination
The deed is simpler when the transaction is properly prepared.
If you need real-estate assistance, first look for professionals who work in the property's location and match your language, required service and property type. Relevance should come before any commercial priority.
Frequently asked questions
The notary when buying a property in España
The purchase and sale can be formalised through a private document, so it should not be stated that a public deed is necessary for any purchase agreement to exist. However, it provides greater legal certainty and is the usual instrument and necessary for the new ownership to be registered with the Land Registry.
There is a principle of free choice of notary within the limits and rules established by the legal system. The General Council of Notaries expressly informs citizens of this right, including in real-estate and financial transactions.
Among other matters, the notary checks the identity, legal capacity and authority of the parties, reviews the title and relevant Land Registry information, property-related documentation, cadastral reference and the payment methods that must be stated in the transaction. The exact checks depend on the type of sale and purchase.
No. The notary's involvement provides important legal safeguards, but it does not replace all prior checks regarding planning regulations, technical condition, contracts, occupancy, the homeowners' association, physical discrepancies or particular risks affecting the property.
This should not be assumed. The notary's office carries out the legal and documentary checks required for execution, but the planning legality of construction works, extensions or uses or administrative proceedings may require specific checks with the relevant autonomous community or local council.
The existence of an encumbrance does not automatically mean that the transaction is impossible, but its nature must be identified and a decision made as to how it will be cancelled, retained or managed as part of the sale and purchase. It is not advisable to sign without understanding its effect on the property being acquired.
The deed may be submitted electronically to the Land Registry and, where the relevant administration is entrusted, other subsequent formalities may be coordinated. The buyer must ensure that taxes, Land Registry filing and other obligations have a clearly responsible party.
Financing adds its own information process and notarial transparency requirements where the transaction falls within the scope of mortgage credit regulations. The sale and purchase and the loan must be coordinated, but their documents, costs and obligations should not be confused.
A lawyer should not be presented as a universal legal requirement for all property transactions. However, their roles are different: the notary advises the parties impartially, whereas a lawyer hired by the buyer can analyse their specific interests and the particular risks involved in the transaction.
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