Property due diligence in Portugal: what to check before the CPCV

Separate the reservation, investigation and CPCV

An expression of interest, reservation payment and CPCV do not carry the same obligations. Before transferring money, establish in writing whether it is refundable, who holds it, what checks remain and what event allows either party to leave the transaction.

The gov.pt guide describes the CPCV as optional, but once signed it creates contractual duties. Ask an independent Portuguese lawyer or solicitor to complete the relevant checks and review the draft before you sign and its deadlines begin to apply.

Check ownership, charges and pending registrations

The permanent land-registry certificate shows the current registrations and pending applications affecting the property. Confirm the registered owner, property description, mortgages, seizures, usufructs and other entries with the professional conducting the legal review.

In May 2026, IRN launched an online service that can issue the certificate immediately after payment when the property can be found using the required identifiers. Check the current record using its access code shortly before you decide to proceed; an old PDF cannot show a later pending registration.

Compare the register, tax record and municipal file

The Caderneta Predial identifies the property in the tax system and includes the Valor Patrimonial Tributário. It is not the same record as the land register and it is not proof that every building alteration is authorised.

Compare address, areas, use, floor, fraction, annexes, parking, storage, pool and boundaries across the available documents and what exists on site. Where there are extensions, converted garages, enclosed balconies or a change of use, ask the municipality and qualified technical and legal professionals what evidence is required. The fact that a transfer can be documented does not by itself regularise building work.

Read the condominium file as a future owner

For an apartment, obtain the administrator's declaration and review the relevant meeting minutes, budget, insurance information, regular charges, reserve fund and approved works. An apartment can have no overdue charges while the building still faces major work on its façade, lift or roof.

Portuguese law specifies what the administrator's declaration must contain for a sale and how the buyer can expressly waive it. A waiver changes the risk the buyer accepts, so it should not be a routine solution to missing paperwork.

Treat legal review and physical inspection as separate work

A clean land register does not tell you whether the roof leaks, the electrical installation is obsolete or the retaining wall is moving. Consider an independent technical inspection suited to the building's age, location and condition before the CPCV, especially where defects would affect the price or your willingness to proceed.

The energy certificate also answers a narrower question. It records an energy class and recommendations under the SCE system; it is not a structural survey or a guarantee of actual utility costs. Confirm that the certificate is valid and corresponds to the property being sold.

Do not confuse the bank valuation with due diligence

The lender uses its valuation to assess the property as security and decide whether to lend. Banco de Portugal explains that the loan-to-value (LTV) calculation uses the lower of the purchase price and valuation. If the valuation is below the agreed price, the buyer may need more of their own money even if the legal and physical checks are satisfactory.

The bank does not replace the buyer's lawyer, surveyor or municipal checks. Finance approval should therefore be coordinated with due diligence and written into the transaction timetable where it is a condition of the purchase.

Agree how and when each unresolved issue will be addressed

Due diligence does not always end with a perfect file. It can end with a clear list: a mortgage to discharge, an updated certificate to deliver, approved works to document or a municipal answer still pending.

The offer and CPCV should state who must deliver each item, by when, what evidence is acceptable and what happens if the condition is not met. Vague promises such as ‘documents will be regularised’ move uncertainty into the most expensive stage of the purchase.

Buyer checklist before the CPCV

The checks needed depend on the property. Use this list as a starting point for a professional review.

• Current land-registry certificate and seller authority
• Caderneta Predial and comparison of descriptions and areas
• Municipal planning, use and alteration evidence
• Condominium declaration, minutes, charges and planned works
• Valid energy certificate
• Independent physical inspection where appropriate
• Finance position and bank-valuation risk
• Written conditions, evidence and deadlines before paying the deposit