Building in the Algarve as a Foreign Buyer: the Process Step by Step

What are the steps to build a house in the Algarve?

Building from abroad feels complicated mainly because the roles, the paperwork and the order of things differ from home. Seen as a sequence it is manageable: each step depends on the one before, and most expensive mistakes come from doing them out of order.

This guide takes each step in turn: what happens, who does it and where you need a professional. It deliberately leaves out tax rates, fees and legal deadlines, which change and depend on your situation. Your lawyer, accountant and architect are the people to confirm those.

1. Get a Portuguese tax number (NIF), usually with a fiscal representative, and open a bank account
2. Find land and check what can be built on it before you buy
3. Appoint an architect and the engineering team
4. License the project with the câmara municipal
5. Choose a builder and sign a written contract
6. Build, with staged payments, a site book and a director de obra
7. Complete: utilisation licence, energy certificate, utility connections and handover
8. Manage it all from abroad with a clear reporting rhythm

Step 1: how do you get a NIF, a fiscal representative and a bank account?

The NIF (número de identificação fiscal) is your Portuguese tax number. It is issued by the tax authority (AT, still widely called Finanças), and you need it to buy property, sign contracts, open a bank account and later to put utilities in your name.

Non-residents often appoint a fiscal representative, a person or firm in Portugal who deals with the tax authority on their behalf. Whether you need one and what it involves depends on your residency status, so confirm it with a Portuguese lawyer or accountant rather than a general guide.

A Portuguese bank account makes staged payments, council charges and utility bills simpler. None of this is difficult, but it takes longer from abroad than people expect, and nothing else can start until it is done. Begin early, not when you have already found a plot.

Step 2: how do you find land and check what can be built?

This is where the most expensive mistakes are made. The price of a plot says little about what you can build on it; the municipal plan says a great deal.

Every município has a PDM (Plano Diretor Municipal) that sets what can be built where: the use, the building index, the maximum area, the number of storeys and the setbacks. Land classified as urban can generally be built on within those rules. Rustic land is far more restricted, and in many cases a new house is not allowed at all.

On top of the PDM, a plot may fall within the RAN (agricultural reserve), the REN (ecological reserve) or a coastal protection zone, each of which can restrict or rule out building. Beautiful plots with sea views often carry exactly these constraints.

Old ruins are a common trap. A ruin only helps if the existing building is legally registered; a pile of stones in an olive grove does not by itself give you the right to build a house.

Buy only after an architect or the câmara has confirmed what can be built. For a firmer answer before you commit, a request for prior information (pedido de informação prévia, PIP) can be submitted to the câmara, and your architect can advise whether it is worth doing for your plot. Your lawyer checks the title, the land registry and any charges on the property.

Step 3: who designs the house, and who does what?

In Portugal the architect, the engineers and the builder are usually separate, and it is the architect, not the builder, who submits the licensing application. That split is the first source of confusion for many clients from abroad.

• Architect: designs the house and submits the licensing application to the câmara
• Engineering team: separate specialists for structure, water and drainage, electrical, thermal, acoustic, gas and fire safety
• Topographer: surveys the plot so the design starts from accurate levels and boundaries
• Builder: executes the work, coordinates the trades and manages the site
• Lawyer: handles the purchase, checks title and represents you when you are not present
• Accountant: advises on tax treatment, which varies with residency status

What should you agree with the architect?

Choose the architect early, ideally before you buy, so the plot is assessed by someone who will have to design on it. Ask for a written fee proposal that states which stages are included: design, licensing, coordination of the engineering projects and supervision during the works are not always in the same package.

Bring the builder into the conversation early too. A design priced before it is finalised avoids the unpleasant discovery, after licensing, that the approved house costs more than the budget allows.

Step 4: how does licensing work at the câmara?

Building control in Portugal is governed by the RJUE (Regime Jurídico da Urbanização e Edificação). In practice your architect submits the architectural project to the câmara municipal, followed by the engineering projects, and the câmara may consult outside bodies when the plot falls under reserves, coastal rules or road setbacks.

In our experience, licensing a new villa in the Algarve typically takes 6 to 12 months, depending on the council and the complexity of the project. Most delays come from requests for additional information and from the opinions of outside bodies, each with its own timescale.

The 2024 Simplex Urbanístico reform (Decreto-Lei 10/2024) changed and simplified several procedures. Which route applies to your project, and what must be in place before work can start, should be confirmed with your architect or the câmara for your specific case. Do not start any work until that is clear.

Step 5: how do you choose a builder and what goes in the contract?

Choose the builder on evidence, not on the lowest total. Check the company’s alvará in IMPIC’s public register, its commercial record (certidão permanente) and NIF, and proof of workers’ accident insurance and liability cover. Ask for a written quote broken down by trade, ideally priced against the same bill of quantities for every builder, so the totals can be compared.

Then sign a written contract that sets out the scope, price, completion period and staged payments tied to measured progress (autos de medição), with any retention and how changes (trabalhos a mais) are priced and approved. Have your lawyer read it before you sign. Our checklist for choosing a builder covers each of these points and the red flags to watch for.

A turnkey builder can coordinate design, licensing, construction and the pool with one point of contact, which reduces the number of people you manage from abroad. That is how we run new builds, but whether it suits you depends on how involved you want to be.

Step 6: what happens during construction?

For a villa, construction typically takes 12 to 18 months after licensing, depending on size, site and specification. Before work starts you should receive a schedule with the phases of the work, and the main phases follow a familiar order:

• Site set-up, earthworks and foundations
• Structure: columns, beams and slabs
• Walls, roof and waterproofing
• Installations: water, drainage, electrics and, where used, gas
• Plastering, flooring, joinery and finishes
• External works, landscaping and the pool

How are payments and supervision handled on site?

Payments follow measured progress through autos de medição, not the calendar, so you pay for what has been built. Changes are where budgets drift: agree a price for every extra in writing before it is built.

On licensed works there is a director de obra, the qualified technician responsible for the works following the approved project, and a site book (livro de obra) is kept on site. If you live abroad, you may want your architect or an independent engineer to check the measurements on your behalf.

Step 7: how do completion and handover work?

A finished house is not yet a house you can live in. The final step is the utilisation licence (licença or autorização de utilização), issued by the câmara once the works are complete and the required documents are in place. Without it the house cannot be lived in.

You will also need an energy certificate (certificado energético), issued by an ADENE-qualified expert, and the utility connections for water, electricity and drainage, with supply contracts in your name. On our new builds we handle the licensing process with the câmara up to the habitation licence.

At handover, walk the house with the builder and list anything that needs finishing or correcting before the final payment or retention is released. Ask for the as-built drawings and equipment manuals, and keep them with the licence and the energy certificate.

Step 8: how do you manage a build from another country?

Distance is manageable, but only with a rhythm agreed up front. We work with clients who visit twice a year and clients who rarely visit, and the difference in outcome is not the visits, it is the reporting.

Agree how often you will get photographs and progress updates, and who has authority to approve changes when you cannot be reached quickly. Decisions that wait a week for an answer stop the site, and a stopped site costs money.

Give a lawyer a power of attorney (procuração) for signatures you cannot attend, and keep its scope clear. At VRconstroi we follow foreign clients with regular photo reports, video calls and a single point of contact in Portuguese or English, so decisions are not relayed through several people.

Which costs are easy to forget?

The construction price is the largest number, but not the only one. When you budget a build in the Algarve, give each of these its own line, even if it starts as an estimate:

• The land itself, plus purchase taxes, notary and registration costs (ask your lawyer and accountant)
• Architect, engineering and topographic survey fees
• Council fees and charges for licensing
• Utility connections for water, electricity and drainage
• VAT where applicable, which your accountant should confirm
• Landscaping, boundary walls, gates and driveways
• The pool, which is usually quoted separately
• Furniture, appliances and the move itself

How much does the construction itself cost?

Quality new build in the Algarve costs from €2,500/m² of gross building area, depending on the design, the plot and the specification. Treat that as a planning figure, not a quote: a detailed written quote for your project is the only reliable number.

What are the most common mistakes?

Buying a plot before confirming what can be built on it is the expensive one, and it happens often. Plots with sea views frequently carry coastal protection or ecological reserve constraints that only surface at licensing.

The second is assuming timescales from home apply here. A build that would take a year elsewhere takes closer to two once licensing is counted, and planning a move or rental income around the optimistic figure creates pressure that leads to bad decisions on site.

The third is paying ahead of progress. A builder who asks for a large share before any work starts is a builder to question, however good the price looks.

Where in the Algarve does VRconstroi build?

VRconstroi is a family-run builder based in Armação de Pêra, working in the Algarve since 2004. We take on new build, renovation, rehabilitation of older buildings, pools and insulation.

We work in Lagos, Portimão, Lagoa and Carvoeiro, Silves, Armação de Pêra, Albufeira, Loulé, Vilamoura, Quinta do Lago and Faro. Our projects include a single-storey house in Mexilhoeira Grande, a hillside house in Carvoeiro built in terraces down to the pool and a contemporary new build in Silves on a sloping plot.

Each step in detail

• Buying Land to Build in the Algarve
• Building Permits and Licensing in the Algarve
• How Much Does It Cost to Build a House in the Algarve
• How Long Does It Take to Build a Villa
• How to Choose a Builder in the Algarve: A Checklist
• How Much Does a Swimming Pool Cost in the Algarve
• Renovating an Old House in the Algarve