New-Build vs. Resale Property in the Algarve — Legal Differences, Developer Contracts, and What Americans Need to Know Before Choosing

Two Transaction Types, Two Legal Frameworks

Most American buyers assume that buying property abroad works roughly the same way regardless of whether the property is newly built or decades old. In Portugal, that assumption is wrong in ways that matter. The contractual structure, deposit mechanics, due diligence focus, tax treatment, and completion timeline for a new-build or off-plan purchase differ from a resale purchase in every material respect.

Understanding those differences before you start viewing properties — not after you fall in love with a developer's show apartment in Vilamoura — is the practical purpose of this article.

How Resale Transactions Work — The Standard Process

Resale is what the majority of American buyers in the Algarve encounter. The seller is an individual or company that already holds legal title to the property. The transaction follows the standard Portuguese sequence: offer agreed, attorney engaged, due diligence on the existing title and documentation, CPCV signed with a deposit, balance paid at the escritura before the notary.

The due diligence focus for resale is on what already exists: the land registry certificate (Certidão Permanente) to confirm ownership and check for mortgages or encumbrances, the caderneta predial to verify the property's tax registration and confirm that the registered area and use classification match the physical property, and an inspection for unregistered construction — extensions, pools, or outbuildings added without the proper permits and registrations. For a full treatment of these documents, see the land registry and caderneta predial guide.

The deposit mechanic for resale is the sinal — a deposit paid at CPCV signing that creates a symmetrical risk structure. If the buyer pulls out after signing the CPCV, they lose their deposit. If the seller pulls out, they must return double the deposit. This structure creates strong incentives for both parties to complete and is one of the cleaner aspects of the Portuguese resale system.

How New-Build and Off-Plan Transactions Work

New-build transactions take two forms in the Algarve: completed new builds where the property exists and the habitation licence has been issued, and off-plan purchases where the buyer commits to purchase a property that does not yet exist or is under construction.

A completed new-build where the habitation licence is already in hand is closer to a resale transaction in legal terms — the standard CPCV structure can apply, and the due diligence focuses on the planning documentation and the developer's title to the land rather than an existing owner's title. The main differences are the VAT treatment of the original purchase price and the five-year statutory defects liability period under Portuguese law.

Off-plan is structurally different and carries meaningfully different risks:

The Developer's Promissory Contract

Instead of a CPCV between two parties of roughly equal standing, the off-plan buyer signs a developer's promissory contract — a document drafted by and in favour of the developer. Portuguese law provides baseline protections, but the developer's contract will be heavily weighted toward the developer's interests in ways that a standard CPCV between private parties is not. Your attorney must review this document specifically for:

• The mechanism protecting your stage payment deposits if the project fails
• The developer's right to modify specifications and how significant those modifications can be without triggering buyer exit rights
• The long-stop completion date and what happens if the developer misses it
• The snagging and defect rectification process after handover
• What constitutes material breach and what your remedies are

Stage Payments and Deposit Protection

Off-plan purchases typically require: a reservation fee (€5,000–€20,000) to take the property off the market, followed by stage payments at construction milestones (foundation complete, structure complete, fit-out complete), with the final balance at key handover and deed signing.

Portuguese law requires that buyer deposits on off-plan or under-construction properties be protected by either an escrow account (where funds are held by a third party until completion) or a bank guarantee (where a bank guarantees to return the buyer's money if the developer fails to deliver). In practice, the quality of this protection varies. A bank guarantee from a reputable Portuguese bank is the strongest protection. An escrow arrangement needs to specify clearly who holds the funds, under what conditions they are released, and what the buyer's rights are if the developer is in breach.

Before paying any deposit on an off-plan purchase, your attorney must confirm that the specific protection mechanism is in place and valid — not just that the developer claims it exists.

The Habitation Licence — Why It Is Non-Negotiable for New Builds

The licença de habitação is issued by the local câmara municipal (municipality) and certifies that a property has been constructed in accordance with the approved plans and is legally fit for residential occupation. For new-build properties, this licence must be obtained by the developer before the final deed can be executed and the property legally occupied.

The habitation licence is not automatically issued on completion of construction. The developer must submit an application to the municipality, which inspects the property and confirms it matches the approved plans. This process can take weeks to months. Buyers who agree a completion date with a developer should factor in the habitation licence timeline — if the licence has not been issued, the deed cannot complete on the agreed date regardless of whether the physical property is ready.

For resale properties, the habitation licence should already exist. Properties built before a certain era may be exempt from the requirement under grandfathering rules, but for any property built since the relevant regulations came into force, the absence of a habitation licence on a resale property is a serious red flag requiring legal investigation before proceeding.

The Five-Year Defects Warranty

One genuine advantage of buying new-build — whether completed or off-plan — is the statutory five-year construction defects liability period under Portuguese law. If construction defects emerge within five years of completion and handover, the developer is legally liable to rectify them. This covers structural defects and significant construction failures; it does not cover cosmetic wear, buyer-caused damage, or appliance failures outside their own warranty periods.

In practice, the value of this warranty depends on the developer still being in business and financially capable of honouring it five years hence. For large, established developers with multiple completed projects and a track record in the Algarve market, the warranty carries real weight. For smaller or less established developers, its practical value is less certain — which is one of the reasons developer track record verification is a non-negotiable part of off-plan due diligence.

Tax Treatment — Where New-Build and Resale Diverge

Both new-build and resale purchases are subject to IMT transfer tax and stamp duty at the same rates. The difference is VAT.

New-build residential property in Portugal attracts VAT (IVA) at 23% on the construction cost. Developers typically build this into the quoted purchase price rather than presenting it as a separate line item — meaning the headline price comparison between a new-build and a resale property may not be comparing like with like. When a developer quotes €650,000 for a new villa and the comparable resale villa nearby is listed at €580,000, part of that gap reflects the VAT embedded in the developer's price that does not exist in the resale transaction.

Both transactions then attract IMT and stamp duty on the purchase price at completion. The full transaction cost breakdown — applying the same 8–11% cost budget — applies to both. For the complete cost table, see Portugal Property Transaction Costs.

Currency Risk — The Off-Plan Complication

A resale purchase from CPCV to escritura typically takes 4–12 weeks. The currency risk — the EUR/USD rate moving between your deposit and your final balance — is limited by the short timeline. Most buyers either accept the rate at completion or use a forward contract for that window.

Off-plan purchases introduce a materially different currency exposure. If you sign an off-plan contract in the Algarve today and the property completes in 18 months, every stage payment and the final balance will be paid at whatever the EUR/USD rate is at that point. A 7% move in EUR/USD over 18 months — entirely routine — adds or removes $49,000 on a €640,000 purchase. Forward contracts that lock in a rate for the full construction period are available from currency specialists for exactly this scenario and should be considered from the point of contract signing, not as an afterthought near completion.

Which Is Right for You — The Honest Framework

Resale is likely the better fit if: you want to move in or start generating income within 6 months, you want to see and inspect exactly what you are buying before committing, your target market (Tavira, for example) has limited new-build supply, or you are not comfortable with construction risk and extended contractual timelines.

New-build or off-plan may be worth considering if: you are buying in a market with active new-build supply at a premium (parts of Vilamoura, the Golden Triangle), you have flexibility on timeline and can wait 12–24 months for completion, the specific development has a credible track record and strong deposit protection, and the specification and energy efficiency of new build is important to you. Modern Portuguese new-builds are typically built to superior insulation and energy standards compared to resale stock of equivalent price, which has real implications for running costs and comfort in a climate that gets genuinely hot in summer.

For the complete resale buying process from NIF to deed, see How Americans Buy Property in the Algarve. For the title documents that matter on any purchase — new or resale — see the Land Registry and Caderneta Predial guide. For the full transaction cost breakdown covering both purchase types, see Portugal Property Transaction Costs.