Why timing decides everything
In Portugal the binding commitment is the contrato de promessa de compra e venda — the CPCV — not the final deed. It is normally signed with a deposit of around ten per cent, and a buyer who withdraws typically forfeits that deposit.
This has one overwhelming practical consequence: due diligence belongs before the CPCV. Discovering a licensing problem between promissory contract and deed leaves you with three bad options — proceed and inherit the problem, renegotiate from a weak position, or walk away and lose the deposit.
Sellers and agents will sometimes press for a quick signature on the basis that checks can follow. They cannot, in any way that protects you. Where genuine speed is needed, the answer is a short, tightly-drafted CPCV with conditions precedent — written by your lawyer, not by the agency.
The documents that matter
Six documents establish what a Portuguese property legally is. Your lawyer will obtain and interpret them; understanding what each one does helps you follow the process.
Certidão Permanente do Registo Predial
The land registry certificate. It establishes who owns the property, its registered description, and — critically — any mortgages, charges, liens, usufructs or pending legal actions registered against it. If ownership on this document does not match the person selling, stop.
Caderneta Predial
The tax register entry, held by the tax authority. It records the property's fiscal description, its taxable value (VPT), and its registered areas. The VPT matters because it drives the annual property tax and can affect transfer tax.
Licença de Utilização
The use licence, issued by the municipality, confirming the building may lawfully be used for its stated purpose — typically habitation. Buildings completed before 1951 predate the requirement and are treated differently. A property without a use licence, or with one that describes a different use, is a serious issue and not a formality.
Ficha Técnica de Habitação
A technical datasheet describing materials, systems and the parties involved in construction. Required for residential buildings licensed after 2004. Its absence on a newer property is a question worth asking.
Certificado Energético
The energy certificate, legally required to market and to sell. Beyond compliance it is a reasonable proxy for glazing, insulation and systems — and therefore for what the property will cost to heat and cool.
Planta / municipal records
The approved plans held by the municipality. These are what the building was permitted to be. Comparing them against what physically exists is where most problems surface.
The area discrepancy problem
This is the most common defect we encounter in Portuguese property, and it is worth understanding properly.
Three sources describe a property's size: the land registry, the tax register, and the approved municipal plans. On a clean property they agree. On a great many older or altered properties they do not — because an extension was built, a basement converted, a terrace enclosed or a garage turned into a bedroom, and the paperwork never followed.
The consequences are real. Unlicensed area can block a mortgage, complicate or prevent a sale later, expose the owner to municipal enforcement, and in some cases require demolition. Legalisation is sometimes possible and sometimes not — it depends on whether what was built would be permitted today under the current municipal plan.
If a property's registered area is materially smaller than what you are being shown, that difference is not a bonus. It is an unlicensed liability, and the cost and feasibility of regularising it should be established before you sign anything — ideally by an architect, not by the selling agent's reassurance.
Debts, charges and inheritance
Several categories of encumbrance travel with a Portuguese property rather than with its former owner:
- Mortgages and liens registered against the property. These must be discharged at or before the deed, and the mechanism for doing so needs to be written into the contract.
- Condominium arrears. Outstanding charges can attach to the unit. Request the condominium's declaration of no debt, the minutes of recent meetings and the accounts — the minutes often reveal planned major works that will be levied after you buy.
- Inheritance. Properties held by multiple heirs are common and can be slow. Every heir must consent, and an unresolved estate can stall a purchase indefinitely.
- Rights of way and usufruct. A registered usufruct can give a third party the right to occupy or use the property, sometimes for life.
What no document will tell you
The paperwork establishes legality. It says nothing about whether the building is any good. A technical inspection — and, ideally, a visit by someone with construction or architectural judgement — covers the things that cost money later:
- Damp and water ingress. Algarve construction is frequently unsuited to winter rainfall. Look for staining at wall bases, flaking paint, and the smell of a house that has been shut up.
- Roof and terrace waterproofing. Flat roofs are the regional norm and the regional weak point.
- Pool plant, plumbing and electrics. Older installations may not meet current standards, and a pool's equipment is expensive to replace.
- Orientation and light. South-facing terraces that are wonderful in May can be unusable in August without shade. Visit at different times if you possibly can.
- Noise and neighbours. A quiet lane in February is a different place in August. Check what is happening on adjacent plots — a neighbouring building permit is public information.
Rural and plot-specific checks
Rural property and land carry an additional layer:
- Classification. Land registered as rústico is agricultural. It does not follow that a house can be built on it, and marketing language about "potential" is not a planning consent.
- Access. Confirm there is a legally registered right of access. Tracks crossing a neighbour's land on goodwill are not a right.
- Water. Mains connection, or borehole with a licence? An unlicensed borehole is a liability, and yield varies seasonally.
- Drainage. Mains sewerage or septic tank, and does the installation comply?
- Boundaries. Rural boundaries are often imprecise in the registry. A topographic survey is cheap compared to a boundary dispute.
- Wildfire obligations. Land-clearing around buildings is a legal duty in much of the interior, with real penalties.
Red flags
- Pressure to sign the CPCV before checks are complete.
- A seller who cannot produce the use licence or registry certificate on request.
- Built area visibly larger than the registered area, waved away as "normal here".
- Being offered the agency's own lawyer, or told a lawyer is unnecessary.
- A price materially below comparable properties with no stated reason.
- Rental income projections presented without evidence of a valid licence.
Where we fit
Due diligence is a coordinated effort: your lawyer gives the legal opinion, a technician assesses condition, and an architect judges what is licensable and what alterations will realistically cost. Keystone's role is to run that process on the buyer's behalf, ask the questions early, and make sure nothing important is left until after the deposit is committed — with an architect inside the team rather than on a waiting list. Tell us what you are looking at.
