Property due diligence in Spain is the most important stage of a property purchase. Buying in Spain can be an excellent investment or lifestyle decision, particularly in sought-after areas such as Málaga, Marbella, Nerja and the wider Costa del Sol. However, many foreign buyers focus on location, price, and financing, while overlooking the importance of property due diligence.
After advising international buyers in Málaga and the Costa del Sol for more than 30 years, I have found that many clients initially believe property due diligence is little more than checking the Land Registry. In practice, however, the legal review is far more comprehensive. Some of the most significant issues we identify are not visible during a property viewing and would not necessarily be apparent from the title deeds alone.
1. What is property due diligence in Spain?
Property due diligence in Spain is the legal and documentary investigation carried out before purchase in order to identify risks affecting ownership, use, value or future resale of the property.
It normally includes checks on title, Land Registry status, debts, planning legality, licences, occupancy rights, tax issues and contractual terms.
These checks should be completed before the buyer becomes contractually bound, particularly before signing a private purchase contract or paying a substantial deposit.
2. Land Registry and ownership verification
One of the first steps is obtaining an updated extract (“nota simple”) from the Spanish Land Registry (Registro de la Propiedad). This confirms who the registered owner is and whether the seller has legal authority to transfer the property.
It also reveals whether the property is subject to:
- Mortgages
- Embargoes or attachment orders
- Charges or easements
- Restrictions on disposal
- Pending registrations
Where ownership does not match the person selling, or inheritance documentation is incomplete, the transaction should not proceed until the situation is clarified.
Practical observation: Buyers are often reassured when the ownership information matches the seller’s description. While this is an important first step, our experience is that additional legal checks frequently provide equally valuable information that is not reflected in the Land Registry alone.
3. Hidden debts, charges and financial liabilities
Buying a property may in some circumstances involve assuming certain outstanding liabilities if they are not resolved prior to completion.
Legal due diligence should therefore verify:
- Mortgage cancellation status
- Community of owners arrears
- IBI (local property tax) debts
- Utility arrears
- Possible enforcement proceedings
Identifying these issues in advance allows the buyer’s lawyer to require retention of funds, cancellation documents or contractual protections before completion.
4. Planning permissions and urban legality
This is one of the most important aspects of property due diligence in Spain, particularly in Andalusia and coastal areas where urban planning issues have historically affected some developments.
The legal review should assess matters such as:
- Building licence validity
- First Occupation Licence or equivalent status
- Planning compliance
- Extensions or alterations carried out without authorisation
- Potential proceedings on urban infrigments or restoration of legality
A property that appears attractive commercially may present serious legal risks if planning status is defective.
5. Tourist rental restrictions in Málaga and Costa del Sol
Many foreign buyers purchase with the intention of holiday letting. However, short-term rental activity is subject to regional and local regulation, community rules and evolving administrative requirements.
Before buying for investment purposes, buyers should verify whether the property is suitable for tourist rental use and whether restrictions may affect expected returns.
Where purchase of a new development is involved, related issues may also arise concerning developer liability in Spain if the property is delivered with defects or incomplete documentation.
6. Community of owners issues and neighbour disputes
Apartment purchases should include review of the community of owners situation, including:
- Outstanding fees
- Major planned works
- Litigation involving the building
- Restrictions on rentals or uses
- Internal conflicts affecting enjoyment of the property
These matters can materially affect both value and day-to-day use.
Where conflicts already exist, broader property disputes in Spain may later arise.
7. What experience has taught me about property due diligence
One of the biggest misconceptions among overseas buyers is that legal problems are always obvious.
In reality, many of the issues I identify during due diligence only emerge after comparing information from different sources. For example, the Land Registry may accurately reflect ownership, while planning documentation reveals alterations that were never properly authorised. In other cases, the legal title appears correct, yet community regulations or municipal records require further investigation.
My experience has shown that successful due diligence is rarely about finding dramatic problems. More often, it is about identifying small issues early enough to resolve them before they affect the transaction.
8. Three situations that deserve particular attention
1. The property has been substantially renovated. Renovations often add value, but they should also prompt a careful review of the relevant planning documentation.
2. The seller inherited the property. Additional documentation may be required to ensure that ownership has been correctly transferred before completion.
3. The transaction is taking place under time pressure. I generally advise clients not to shorten the due diligence process simply to meet an arbitrary deadline.
In my experience, recognising these situations early does not usually prevent a transaction from going ahead; it simply allows potential issues to be addressed before they become costly problems.
9. Questions I encourage buyers to ask before signing
Before signing a reservation agreement or paying any deposit, buyers should make sure they have answers to a number of important legal and practical questions. In our experience, taking the time to clarify these issues at an early stage can prevent unnecessary delays, additional costs and avoidable disputes later in the transaction.
- Has the property been altered or extended, and if so, were all the necessary planning permissions obtained?
- Does the Land Registry accurately reflect the property’s current physical layout and ownership?
- Are there any outstanding community fees, local taxes or other debts that could affect the transaction?
- Are there any ongoing disputes involving the property or the community of owners?
- Are there any restrictions that could affect how I intend to use the property, such as holiday rentals or future renovations?
- Have all licences and certificates required for the sale been obtained and are they still valid?
- Is there any aspect of the transaction that depends on verbal assurances rather than written documentation?
- Will I have sufficient time to complete a full legal due diligence review before making any binding commitment?
- If an issue is identified during due diligence, what are my legal options before I become contractually bound?
While the answers to these questions will vary from one property to another, asking them before signing can help buyers make informed decisions and reduce the risk of unexpected legal issues emerging later in the purchasing process.
10. Why foreign buyers should instruct a lawyer before paying a deposit
In Spanish property transactions, timing is critical. One of the most common legal risks for foreign buyers arises at a very early stage: the signing of a reservation agreement or arras contract and the payment of a deposit, often before any legal review has been carried out.
These preliminary contracts are frequently presented as “standard practice” by estate agents or developers. However, in reality, they are often drafted to favour the seller, imposing strict conditions on the buyer while offering limited protection in return. Once signed, they can create binding obligations that are difficult to reverse without financial loss.
For this reason, independent legal advice should always be obtained before any funds are transferred. A lawyer acting exclusively for the buyer will typically:
- Review and, where necessary, negotiate reservation or arras contract terms before signature
- Verify that the seller is legally entitled to sell the property
- Confirm that the property is free from legal or financial encumbrances
- Ensure that any deposit paid is properly protected (for example, held in escrow or subject to clear refund conditions)
- Introduce protective clauses linked to satisfactory due diligence results
In practice, this step is essential because once a deposit has been paid, the buyer’s negotiating position is significantly weakened. In many cases, deposits in Spain are structured as arras penitenciales, meaning that withdrawal from the contract can result in the loss of the deposit or even liability for double repayment in certain circumstances.
This risk is particularly relevant for international buyers unfamiliar with Spanish contractual mechanisms or relying solely on information provided by intermediaries with a commercial interest in completing the sale.
By instructing an independent lawyer early, buyers ensure that the transaction is structured safely from the outset, rather than attempting to correct problems after commitments have already been made.
10. Legal assistance and property due diligence in Málaga and Costa del Sol
Foreign investment in the Spanish property market remains especially active in coastal and metropolitan areas such as Málaga, Marbella, Estepona, Benalmádena, Fuengirola, Mijas and Nerja, as well as inland regions like the Axarquía and Serranía de Ronda.
Each area presents its own legal and practical considerations, particularly in relation to urban planning regulations, tourist rental licensing and the status of older or rural properties. This makes local legal expertise essential when conducting property due diligence in Spain.
As an international property lawyer based in Málaga, I assist foreign buyers throughout the entire acquisition process, offering a fully independent legal service that is not linked to developers, real estate agencies or financial institutions.
My services typically include:
- Comprehensive due diligence and title investigation at the Land Registry
- Review and negotiation of reservation agreements and purchase contracts
- Verification of planning legality and building compliance
- Assessment of community of owners liabilities and restrictions
- Advice on tax implications and acquisition structure
- Coordination with notaries and representation via power of attorney where required
For international clients, I also provide remote legal support, allowing the entire process to be managed efficiently without the need for repeated travel to Spain. This is particularly valuable for buyers purchasing holiday homes or investment properties.
Protect your investment before you commit. If you are considering purchasing property in Spain, obtaining independent legal advice at an early stage can prevent costly mistakes and ensure a secure, fully compliant transaction. A proper due diligence review gives you clarity on the legal status of the property and strengthens your position before signing any agreement or paying a deposit.
