How Much Does It Cost to Build a House in Madeira?

This is where almost every conversation starts. What is the cost to build a house in Madeira? And it is a fair question — the price of a house is one of the most important numbers in the whole project, because it decides something very simple: whether you build it at all, or whether you walk away.

So I am not going to dodge it. But I am going to tell you why a single number per square meter, on its own, is one of the most misleading figures in construction — and what you should actually be comparing instead.

Why the price is almost impossible to pin down at the start

Here is the honest truth most builders will not tell you at the first meeting: at the beginning of a project, the price is extremely hard to estimate. And it is not the house itself that makes it hard. It is the ground it stands on.

The single largest unknown in most projects is not the building — it is preparing the plot before construction even begins. And plot preparation is almost impossible to predict without a deep analysis of the specific piece of land. How many cubic meters of earth have to move. What type of retaining walls, and how many. Which utility connections are needed and how far away they are. Whether a sidewalk has to be built around the plot. What the subsoil actually is.

That last one alone can swing the number enormously. Excavating ordinary soil is one price. Hitting rock is a completely different one. Add to that the cost of bringing earth in, or hauling it away, and you are looking at a range of tens of thousands of euros — before a single panel goes up.

So when a client asks me “what does a house cost per square meter”, the honest answer is that I cannot give you a real price for a house on your specific plot without knowing all of those details.

What I can give you is an approximate price per square meter based on the type of equipment, quality and standard you want — for a given type of building. But that figure comes with a condition you have to understand: it is for a house on a flat surface. It is the price without foundations. The foundation slab we build on, the levelling of the plot, the earthworks — those are all planned per project, and they sit outside that per-m² figure entirely, for the simple reason that they change completely from one plot to the next.

This is also where a lot of projects run into trouble. Often the design exists, but it does not carry enough detail for us to calculate the groundwork properly. We need quantities, we need the technical detail, and without them any groundwork number is a guess. It is a more demanding process than people expect — and it cannot be generalised into a single number per square meter, because every plot is different and every project starts from a slightly different reality.

That is why “just give me the price per square meter” produces a distorted answer every time. Not because we are hiding something. Because the honest number does not exist yet.

The problem with comparing price per m²

Imagine you ask three builders for a price per square meter. One comes back at a number that looks high, and two come back lower. The natural conclusion is that the two cheaper ones are better value.

Except you have no idea what is inside those numbers.

Our price includes a level of waterproofing and weather protection that most builds on this island simply do not have. And it is not one thing — it is an entire strategy, built from dozens of details that never appear on a headline price per m². Here is some of what sits inside ours.

The sealing system. Sealing tapes, waterproofing membranes, and sealants at every joint and transition — a complete, deliberate strategy, not a tube of silicone at the end. Many of these materials cannot be bought on Madeira at all; we import them, because the products made for the highest level of waterproofing are not available here. Our partner for membranes and tapes is Rothoblaas, whose products are engineered specifically to keep water and water vapour out of a building.

How the windows are installed. This is one of the biggest silent differences. It is not just which window you buy — it is how it is set into the wall. Whether it is taped on the outside, on the inside, or both. How the layers overlap so that water simply has no path inward. The installation process itself, compared to what is commonly done here, is where a large share of long-term water problems are either prevented or built in from day one.

The façade. This one is worth understanding, because it is where the gap is widest. On Madeira, what usually passes for a façade is an acrylic coating mixed with sand — a protective layer measured in microns, made from material that was never designed for this level of UV exposure. It looks like a façade. It does not perform like one, which is why so many houses here need repainting every three to five years.

Finding a better option was not simple. I contacted several manufacturers and their distributors and asked, explicitly, for the highest grade of façade render. Several refused to supply it to Madeira at all — even when I said plainly that this was exactly what I wanted. In the end I had to bring the product in through my own channel.

I will be honest about the impression that left me. When a manufacturer will not send the more durable material into an environment where it matters most, you are left wondering whether a façade that has to be repainted every few years suits somebody along the chain rather better than one that lasts. That is only my impression — but it is why I stopped waiting for the big names and did my own due diligence.

The manufacturer we work with is P&J Colours, whom you will find listed as a partner on our site. We use a high-silicone render — silicone content is the single most important part of a façade’s protection, and it is what gives the surface its water-repellent, self-cleaning behaviour: rain runs off and carries the dirt with it, rather than soaking in. Applied at a real thickness, on a properly prepared wall, it is built to survive the Madeira climate rather than be repainted on a cycle.

We use one of two approaches, both a level above the standard acrylic coat: this high-silicone render, or a ventilated façade. Both cost more than the thin coating you see everywhere here — and both are the reason a serious price per m² is never the cheapest one on the table.

And then all the details nobody quotes. Gutters and gutter trims. Storm-edge and drip flashings. Drainage, and waterproofing into the ground. The build-up of the wall itself. Window sills that are not just a flat piece of stone, but sloped, with waterproofing tapes and several layers protecting against water working its way inward. The trims where an ETICS render façade meets an aluminium or PVC window. The overlapping of every layer, detailed specifically to minimise any route for water to get in.

None of that appears in a number per square meter. But all of it is the difference between a house that stays dry for decades and one that starts leaking in year five.

So when a competitor’s price per m² comes in lower, the first question is not “why are they cheaper”. The first question is: cheaper at what? If their number does not include the sealing strategy, the window detailing, the drainage and the real façade that ours does, then you are not comparing two prices. You are comparing two completely different buildings that happen to have the same floor area.

How we handle a real price comparison

We know clients want to compare. That is normal and healthy, and we have no problem with it. We handle it in one of two ways — and which one depends entirely on what you can give us.

Path one: you have a complete specification. If you genuinely want to put our price next to a competitor’s, we need a detailed specification of exactly what to price — quantities, materials, surface qualities, finishes, and the construction details. Not just the design and the standard items, but the real technical detail. Then we price every component against it, and you get a true apples-to-apples comparison.

The problem is that most projects never come with that level of detail. The design exists, but the material specification, the quantities, and the detailing do not. And without them, any price is a guess — ours or anyone else’s.

Path two: you tell us the ceiling. When the full specification does not exist, we go the other way, and honestly this is often the more useful path for the client. We ask a simple question: what is the maximum budget this project has to fit inside?

This is where a lot of clients get suspicious. They assume we ask for the budget because we want to know how much we can charge — that if they tell us they have more, we will simply take more. That is not how it works, and it is worth explaining why.

When you tell us your ceiling, you give away nothing. You lose no leverage. Whatever solution we design for that budget, you are always free to take it to a competitor and compare it line by line. Telling us your number does not commit you to anything — there is no binding order, no payment attached to it. It is simply the honest starting point for a real conversation.

What it lets us do is tell you the truth early: this is achievable within your budget, and this is not. If the budget is healthy, we prioritise the solutions so that nothing is compromised. If the budget is genuinely too small for what you want, we tell you that at the start — before anyone has wasted months — rather than discovering it after two years of design.

The one line we will not cross

There is one place where we do not compromise, no matter the budget: the outer envelope. The roof, the drainage, the waterproofing, the windows, the façade — everything that stands between the building and the weather.

We will prioritise, we will find intelligent savings, we will adapt a concept to a real budget. But we will not knowingly design a house that will have a water problem in five years just to hit a lower number today. If a client wants us to cut corners there, that is our red line, and we would rather not take the project than build something we already know will fail.

Why we ask before we quote

There is also a practical reason behind all of this, and we are open about it.

Pricing a project properly is two to four weeks of engineering work. We are not willing to spend that time in the dark — pricing something we have no specification for, with no idea of the budget — only for the whole thing to be thrown away because, after seeing our quote, the client realises the project was never within reach.

So we work one of two ways. Either you give us a properly developed project with the full detail — not just the design, but the materials, the specifications, the quantities — and we price it exactly. Or you trust us enough to sit down, share the budget, and let us build the concept around your actual number.

Both are honest. Both protect your time as much as ours. What we will not do is invest weeks of work into a number that has no specification behind it and no budget in front of it.

Where this leaves you

Here is the real lesson, and it is bigger than price.

If you are asking about the cost of a house when the project is already finished — when the drawings are done and you are handing them to different companies to quote — then, honestly, a mistake was already made earlier. And it was not made by the builders you are calling. It was made at the very beginning.

Because the budget is not something you discover at the end, when the quotes come in. It is something you should know at the very start, before the first line of the project documentation is drawn. You should walk into the design phase already knowing how much you want to put into this, where you are willing to look for compromises, and where you must never accept one.

That is the most important point in this whole series, and we come back to it in the articles ahead. The final comparison of cost — the wall build-ups, the specifications, the details that actually decide whether a house lasts — has to be defined at the beginning, not reverse-engineered at the end.

When the budget and the priorities are set in the design phase, the project is built correctly around them from the first drawing. When they are not, everything that happens afterwards is just cutting corners — and cutting corners on a building is dangerous, for one of two reasons. Either you run out of money and never finish it. Or you do finish it, at the price of repairing it three years later.

So the honest answer to “how much does it cost per square meter” is another question: do you know your budget, and did you bring it to the table at the start? If you did, we can build the right house around it. If you did not, that is the first thing to fix — before anything else.

Filip Gajdoš
Founder, Go2Madeira — SIP construction on Madeira