Most countries give property buyers at least one structural protection: a licensed agent with a duty to them, a shared inventory system, a mandatory pre-purchase inspection, or a disclosure requirement when their agent is also working for the seller. Portugal has none of these by default. The mediador is the seller's agent. The law requires no disclosure of that fact. There is no MLS. Inspections are optional. And since January 2024, the notary no longer verifies whether what you are buying matches its licensed description. This guide maps each gap, explains the legal basis for it, and describes what buyers can actually do to protect themselves.
Table of Contents
- How does Portugal's buyer protection compare to other markets?
- Gap 1: No buyer's agent profession
- Gap 2: No MLS: incomplete market access by design
- Gap 3: The mediador is the seller's agent, not yours
- Gap 4: No dual agency disclosure requirement
- Gap 5: No mandatory pre-purchase inspection
- Gap 6: DL 10/2024 removed the last compliance checkpoint
- Gap 7: Direito de preferência can override a completed sale
- Gap 8: Low AMI licensing bar with limited enforcement
- What actually protects a buyer in Portugal?
- Frequently Asked Questions
How does Portugal's buyer protection compare to other markets?
Across all major buyer protection dimensions, Portugal ranks below the US, UK, Australia, Spain, and Germany. The gap is structural, not incidental.
Buyer protection in property markets is not a single mechanism. It is a stack of overlapping systems: agent licensing with clear fiduciary duties, shared inventory infrastructure, mandatory inspections, disclosure requirements, and state verification of physical compliance before transfer. Most mature markets have several of these in place. Portugal has almost none.
This is not a criticism of Portuguese property professionals as individuals. Mediadores, notaries, and property lawyers in Portugal are often competent and well-intentioned. The problem is structural: the legal and regulatory framework does not require them to protect the buyer, and in several cases actively exempts them from doing so.
The result is a market where buyers from the US, UK, Canada, Australia, Germany, and France arrive with expectations built from their home systems and find that almost none of those protections exist here. The buyer who assumes the agent is working for them, that the listed price reflects independent market analysis, that someone in the transaction chain has checked the building, is operating on false premises in every case.
Understanding the specific gaps, their legal basis, and their practical consequences is the starting point for any serious buyer in Portugal.
Gap 1: No buyer's agent profession
Lei n.º 15/2013 creates no licensing category for buyer's agents. Any firm using the title operates commercially, not legally, as a buyer's representative.
In the US, a buyer's agent has a fiduciary duty: a legal obligation to act in the buyer's best interest, disclose conflicts, and avoid self-serving advice. That duty is backed by state licensing law, enforceable in court, and backed by professional indemnity insurance.
In Portugal, no such category exists. Lei n.º 15/2013, de 8 de fevereiro, the law governing all real estate mediation, creates one category of licensed operator: the mediador imobiliário. The mediador's obligations run to the mediation contract, not to any party in particular. Since mediation contracts are almost always signed by sellers, the mediador is, by default, the seller's agent.
A small number of firms in Lisbon, the Algarve, and Porto market themselves as buyer's agents. They operate commercially, not legally, as buyer representatives. Their quality varies, their access to inventory is limited by the absence of MLS infrastructure, and their title is unprotected. Any firm can describe itself as a buyer's agent; no regulation governs what that means.
For buyers who need full transaction coordination, relocation support, or access to off-market properties, these firms can add value. But they do not substitute for the structural protection that a legally defined, fiduciary buyer's agent provides in markets like the US or Australia.
Read more: Why Portugal has no buyer's agents
Gap 2: No MLS: incomplete market access by design
Portugal has no shared listing system. Idealista, Imovirtual, OLX, and CustoJusto are competing advertising portals, not cooperative databases. The same property appears at different prices across agencies.
The Multiple Listing Service in the US is a cooperative database: agents share listings, buyers get access to the full market through a single agent, and commissions are split through an established infrastructure. It is the mechanism that makes buyer's agents economically viable and market access complete.
Portugal has no equivalent. The main portals are paid advertising channels. Agencies list properties on whichever portals they choose, at whatever prices they decide, with whatever information they hold. The same property frequently appears on three portals, with three agencies, at three different prices. Addresses are withheld to prevent competitor agencies from approaching the seller directly.
The practical consequences for buyers are significant. A buyer who relies on a single agency gets access to that agency's listings only. A buyer who searches Idealista misses properties listed exclusively on Imovirtual. A buyer who searches both misses private sales on OLX and CustoJusto. And no buyer, through any channel, gets access to off-market properties unless they have direct relationships with specific agencies or a consultant who does.
This fragmentation is not accidental. The absence of MLS infrastructure is the direct cause of three other gaps on this list: the unviability of buyer's agents at scale, the inability to ensure consistent pricing, and the absence of a cooperative commission structure that would allow buyers to be represented at no direct cost.
Read more: How real estate agency works in Portugal
Gap 3: The mediador is the seller's agent, not yours
The agent showing you a property is contracted and paid by the seller. Their professional obligations run to the seller. This is not disclosed by default under Lei n.º 15/2013.
When a seller signs a mediation contract with an agency, that agency becomes the seller's representative for the purpose of finding a buyer and completing the transaction. The mediador is legally obligated to act in accordance with that contract. The buyer is the other party to the transaction, not a client.
This means the person showing the buyer around the property, answering questions about the building's condition, advising on whether the asking price is reasonable, and recommending when to make an offer, is a professional whose income depends on the transaction completing at the highest possible price for the seller.
Lei n.º 15/2013 does not require the mediador to disclose this. There is no legal obligation to tell the buyer: "I was contracted by the seller. My commission is paid by the seller. My financial interest is in you paying as much as possible and completing the purchase."
The April 2025 Sérvulo analysis published in Idealista identified mandatory conflict-of-interest disclosure as the single most important regulatory reform the AMI framework needs. It has not been implemented.
Until it is, buyers should ask at the first meeting: who signed your mediation contract for this property, and who pays your commission if I complete the purchase?
Read more: How real estate agency works in Portugal
Gap 4: No dual agency disclosure requirement
In Portugal, the same mediador can represent both buyer and seller in a single transaction without declaring it. No law requires disclosure or buyer consent.
Dual agency, where one agent simultaneously represents both sides of a transaction, is one of the most significant conflicts of interest in any property market. In the US, it requires written disclosure and consent from both parties. In the UK, it is heavily regulated. In Australia, it is prohibited in some states entirely.
In Portugal, it is permitted, common, and undisclosed. The same mediador who negotiated the listing price with the seller can be the person the buyer trusts to advise them on what to offer. The same commission incentive applies in both directions. No law requires them to tell either party that they are representing both.
This situation is distinct from Gap 3. Gap 3 describes the baseline: the mediador represents the seller, the buyer is unaware. Gap 4 describes a further layer: the same mediador may simultaneously present themselves to the buyer as their guide through the transaction while remaining contractually and financially bound to the seller.
The buyer's defence is the same direct question: who do you represent in this transaction, and who pays your commission?
Gap 5: No mandatory pre-purchase inspection
Portugal has no legal requirement for a pre-purchase property inspection. No professional in the standard transaction chain assesses the physical condition of the building.
In the US, a home inspection is a standard condition of any residential offer. The buyer commissions it, the inspector works for the buyer, and the findings can trigger renegotiation, repair requests, or withdrawal from the purchase. In the UK, a RICS survey is not legally mandated but is standard practice for most purchases, particularly for older properties.
In Portugal, no inspection is required at any point in the transaction. The mediador does not conduct one. The notary does not require one. The lawyer does not commission one. The buyer can proceed from portal search to CPCV to escritura without anyone checking whether the building is structurally sound, free of moisture, electrically compliant, or free of unlicensed alterations.
This gap is particularly acute for Portugal's older housing stock. Lisbon and Porto both have large volumes of pre-1960 buildings, many of which have been renovated multiple times, sometimes legally, sometimes not. The renovation boom of the 2010s and 2020s produced many superficially attractive properties with unresolved structural and compliance issues beneath the new finishes.
The only way to close this gap is to commission an independent pre-purchase inspection before the CPCV is signed. Once the CPCV is signed, the buyer's deposit (typically 10% to 20% of the purchase price) is legally at risk. Discovering a structural problem after that point may not be sufficient grounds to withdraw without losing the deposit.
Book a pre-purchase inspection · get a quote at inspectos.pt/en/home-inspections
Gap 6: DL 10/2024 removed the last compliance checkpoint
Decreto-Lei n.º 10/2024, de 8 de janeiro, removed the notary's obligation to verify physical compliance before the escritura. Since January 2024, no professional in the transaction verifies that the building matches its licensed description.
Before January 2024, the notary was required, as part of the escritura process, to confirm that the property's physical state corresponded to its licensed description. This step, imperfect and limited as it was, provided at least a formal checkpoint before title transferred.
Decreto-Lei n.º 10/2024, de 8 de janeiro (DL 10/2024) removed this requirement as part of a broader administrative simplification programme. The intention was to reduce transaction costs and speed up completions. The consequence was the elimination of the last formal compliance checkpoint in the transaction chain.
Since January 2024:
- The notary does not verify that the property's physical state matches its licensed description
- The mediador is not required to have verified it
- The property lawyer reviews legal documents, not physical compliance
- The buyer has no professional on their side whose job is to check the building This means a property with unlicensed extensions, illegal partitions, or structural changes that differ from the licença de utilização can now transfer title without any professional identifying the discrepancy. The buyer inherits the legal and physical liability.
The remedy is an OE-registered pre-purchase inspection that explicitly covers licensed versus actual footprint comparison, structural condition, and the identification of works that may require retroactive licencing. This must be commissioned before the CPCV, not after.
Book a pre-purchase inspection · get a quote at inspectos.pt/en/home-inspections
Gap 7: Direito de preferência can override a completed sale
Under Portuguese law, certain third parties, including tenants, municipalities, and heritage bodies, have the legal right to claim a property at the agreed sale price even after the buyer has signed the CPCV.
The direito de preferência (right of first refusal) is one of the least understood risks in Portuguese property transactions. It allows specific categories of third party to step into the buyer's position in a transaction and acquire the property at the same price and conditions, even after the buyer has agreed terms with the seller.
The main categories of preferência holder in residential transactions:
Tenants under NRAU. A tenant with a current lease under the regime of urban arrendamento has a statutory right of first refusal if the property is sold while tenanted. If the seller fails to formally notify the tenant and offer them the right to purchase before completing the sale, the tenant may apply to court to annul the transaction.
Municipality in ARU zones. In designated urban rehabilitation areas (Áreas de Reabilitação Urbana), the relevant municipality holds a preferência over property sales. Both Lisbon and Porto have extensive ARU designations. The seller is required to formally notify the municipality before completing the sale. Failure to do so gives the municipality grounds to challenge the transaction.
Heritage bodies (DGPC). For properties classified as national monuments or located within their protection perimeters, the Direção-Geral do Património Cultural holds a preferência. This applies to many historic centre properties in Lisbon, Porto, Évora, Sintra, and other heritage zones.
The practical risk: a buyer who completes a purchase without the seller having correctly discharged all preferência notification obligations may find the transaction challenged after the fact. Proper legal due diligence, specifically checking the property's location relative to ARU zones, its tenancy status, and any heritage classifications, is the only protection against this gap.
Read more: Direito de preferência in Portugal (coming soon)
Gap 8: Low AMI licensing bar with limited enforcement
Portugal has over 11,000 active AMI licences. The bar to obtain one is low by international standards: no exam, no mandatory education, no experience requirement.
As of 2025, IMPIC had issued over 11,000 valid AMI licences, one of the highest per-capita rates in Europe. The requirements to obtain one are minimal: no criminal record, civil liability insurance with a minimum capital of €150,000, and proof of commercial suitability. No professional exam, no formal real estate education, and no minimum experience period are required.
The April 2025 Sérvulo and Belzuz analysis cited in Idealista called for structural reform: higher individual qualification requirements, stronger IMPIC inspection protocols, and a public complaint mechanism. None of these has been implemented.
The consequence for buyers is significant variation in professional quality within the licensed market. A buyer who works with an agent employed by an AMI-licenced firm is working with someone who may have entered the profession last month, with no formal training, and no requirement to disclose anything about their qualifications.
The practical protection: verify the AMI licence number on impic.pt before signing anything, ask directly how long the agent has been practising and how many transactions they have completed in the relevant area, and rely on independent professionals (lawyer, inspector) whose obligations do not depend on the transaction completing.
Read more: How real estate agency works in Portugal
What actually protects a buyer in Portugal?
Four independent professionals and one contractual mechanism provide genuine buyer protection in Portugal. None of them is the mediador.
Given the gaps above, buyers in Portugal need to construct their own protection layer from scratch. The following professionals and mechanisms provide real protection, not because the system requires them, but because each covers a gap the system leaves open.
A property lawyer (advogado). An independent property lawyer, contracted and paid by the buyer, is the closest equivalent Portugal has to a buyer's advocate in the transaction. They review title documents, check for encumbrances and mortgages, verify the caderneta predial and certidão de registo predial, review the CPCV terms, and advise on legal risk. They do not assess the physical building, but they provide the legal scaffolding the mediador cannot.
A tax adviser or mortgage broker. For buyers financing the purchase, an independent mortgage broker navigates the Portuguese banking system and advises on IMT, stamp duty, and structuring. For non-resident buyers, a tax adviser familiar with NHR (or its replacement regime, IFICI) and double taxation treaties is a separate need.
An OE-registered pre-purchase inspection. An engineer registered with the Ordem dos Engenheiros, commissioned before the CPCV, provides an independent technical assessment of the physical building. This covers structural integrity, moisture, electrical and gas installation condition, MEP systems, and a comparison of the licensed versus actual footprint. It is the only mechanism that closes Gap 5 and Gap 6 simultaneously.
A buyer's agent or relocation consultant (situational). For remote buyers, first-time Portugal purchasers, or complex multi-property searches, a buyer's agent adds value in market access, price analysis, and coordination. For buyers already present and well-connected locally, the case is weaker. Either way, the buyer's agent does not replace the inspection.
The CPCV negotiation window. The period between the promissory contract and the escritura is the buyer's primary contractual protection mechanism. A well-drafted CPCV with appropriate conditions, including inspection findings, can provide withdrawal rights without penalty. Once the CPCV is signed without conditions, the buyer's position is weak.
Book a pre-purchase inspection · get a quote at inspectos.pt/en/home-inspections
Frequently Asked Questions
Is buying property in Portugal risky compared to other European markets?
The risk is structural, not random. Portugal's property market is not uniquely dangerous, but its buyer protection framework is thinner than most comparable European markets. Spain requires sellers to provide a habitability certificate. Germany has mandatory notary representation with disclosure obligations. France requires a diagnostic report covering asbestos, lead, electricity, gas, and structural risk before any sale can proceed. Portugal has none of these requirements. Buyers who understand the gaps and commission independent professionals to close them can transact safely. Buyers who assume the system protects them the way their home market does are taking material risks.
Does having a property lawyer protect me from all these gaps?
No. A property lawyer covers legal due diligence: title, encumbrances, contract terms, and compliance with legal requirements. They do not assess the physical building, do not check for unlicensed works under DL 10/2024, and do not verify that the electrical or structural condition is sound. Legal protection and physical protection are separate needs requiring separate professionals.
What is the most important thing to do before signing a CPCV?
Commission an independent pre-purchase inspection by an OE-registered engineer. The CPCV is the point at which the buyer's deposit becomes legally at risk. Problems discovered after the CPCV is signed may not provide grounds for withdrawal without losing the deposit. The inspection must happen before signing, not after.
Does the mediador have to tell me if there are problems with the property?
The mediador is required to disclose information about the property that they are aware of. They are not required to seek out information they do not have, commission technical surveys, or identify problems the seller has not disclosed to them. If the seller knows about a structural problem and does not tell the mediador, the mediador has no obligation to discover it. The buyer cannot rely on mediador disclosure as a substitute for independent inspection.
What is the direito de preferência and how do I protect against it?
The direito de preferência gives certain parties (tenants, municipalities in ARU zones, and heritage bodies) the legal right to claim a property at the agreed sale price before the buyer completes the purchase. If the seller fails to formally notify eligible preferência holders, the transaction can be challenged after completion. Protection is through legal due diligence: your property lawyer should check the property's tenancy status, ARU zone classification, and any heritage designations before you sign the CPCV.
Is a pre-purchase inspection required by Portuguese law?
No. There is no legal requirement for a pre-purchase inspection in Portugal. The inspection is voluntary and must be commissioned by the buyer. Since DL 10/2024 removed the notary's physical compliance verification obligation, no professional in the standard transaction chain checks the building's condition. The inspection is the only mechanism that fills this gap.
Can I negotiate the purchase price after an inspection finds problems?
Yes, and this is one of the primary uses of a pre-purchase inspection. Significant defects identified in an inspection provide grounds to renegotiate the purchase price, request remediation before completion, or withdraw from the purchase if the CPCV includes an appropriate inspection condition. Buyers who commission the inspection before signing the CPCV are in a significantly stronger position than those who discover problems after signing.
Conclusion
Portugal's property market is attractive for strong structural reasons: stable legal title, relatively efficient conveyancing, a wide range of property types, and a market that has shown consistent long-term demand. The risks are not in the legal system itself but in the protection gaps that surround it.
Eight specific gaps leave buyers systematically exposed: no buyer's agent profession, no MLS, an undisclosed seller-side mediador, no dual agency disclosure, no mandatory inspection, the removal of the notary compliance checkpoint under DL 10/2024, the direito de preferência, and a low AMI licensing bar.
Each gap has a specific professional response. A property lawyer closes the legal gap. An OE-registered engineer closes the physical condition gap. A buyer's agent (situational) closes the market access gap. And a well-drafted CPCV with appropriate conditions creates the contractual protection that allows the buyer to act on what the inspection finds.
The inspection is the non-negotiable. It is the only mechanism that closes Gaps 5 and 6 simultaneously, it must be commissioned before the CPCV, and no other professional in the transaction chain provides it by default.
Book a pre-purchase inspection · get a quote at inspectos.pt/en/home-inspections
Updated June 2026 | InspectOS Editorial | InspectOS Portugal
Sources
- Lei n.º 15/2013, de 8 de fevereiro
- Decreto-Lei n.º 10/2024, de 8 de janeiro
- Lei n.º 6/2006, de 27 de fevereiro (NRAU)
- Regime Jurídico da Reabilitação Urbana (RJRU)
- IMPIC, Títulos Habilitantes Válidos 2014-2025
- Idealista/news, Agentes imobiliários com licenca de mediadoras, April 2025
- Sérvulo and Belzuz analysis, AMI framework reform, April 2025
- Savvy Cat Realty, 2025
- RICS, UK Residential Survey standards
- NAR, US buyer representation statistics