Twenty thousand euros per square metre. Not in Portofino. Not in Capri. On Monte Argentario, in the Sbarcatello area and along the seafront stretches on the southern side of the promontory, unique and iconic properties reach values of €15,000–20,000 per square metre. Cala Piccola and the harbour of Porto Ercole touch peaks of €10,000–12,000.
Almost nobody outside the promontory knows these figures. And almost nobody knows the other figure — the one that makes them interesting: a few minutes from those peaks, you can still buy 50 metres from the sea at a quarter of those values.
This article is about that gap. And about a phrase that scares off half the buyers in the property market: “in need of renovation”. They read it in a listing and move on. They see building sites, permits, surprises. I see something else. And this time, instead of telling the story, I’ll put it in numbers.
Property prices on Monte Argentario: the average and the peaks
Let’s start with the context. According to research by Abitare Co. covering 134 Italian coastal locations (July 2026), residential prices in seaside destinations have risen by an average of 15.5% over the past five years. Tuscany has done better: +18.2% between 2022 and 2026, second in Italy only to Campania. And the run isn’t slowing: in the first half of 2026, values in coastal municipalities rose a further 5.6% compared with the same period in 2025.
Monte Argentario [→ territory page link] sits within this dynamic, with an average municipal price of around €4,400–4,750 per square metre (Immobiliare.it and Idealista data), among the highest in the province of Grosseto. But on the Argentario, the average tells you little: it’s the distance between the average and the peaks that shows where the value lies. And here comes the figure almost nobody looks at.
The Pozzarello value gap
Pozzarello — the sheltered bay at the entrance to Porto Santo Stefano — trades, on average, below the promontory’s iconic areas. In plain terms: one of the few areas of the Argentario where you can buy 50 metres from the sea at entry values two to three times lower than the promontory’s peaks. Same sea, same scarcity of supply, lower price of entry. In mature markets, this is called a value gap. And value gaps, historically, close.
A concrete case: a villa 50 metres from the sea in Porto Santo Stefano
Now the concrete case: Villa Felix, Pozzarello [→ listing Hm209 link]. 336 square metres over two floors, 5 bedrooms, 4 bathrooms, 44 square metres of terraces overlooking the Tyrrhenian, 1,140 square metres of private garden, with the option of creating two independent units. Fifty metres from the water, with the Yacht Club a short walk away. Asking price: €1,500,000 — around €4,460 per square metre, with no weighting applied for the outdoor areas (terraces, garden, parking). In line with the municipal average, for a property where only the state of repair is average — not the position.
Because yes, it needs complete renovation. So let’s do the sums, instead of walking away.
Investment hypothesis (prudent figures, to be verified with a detailed survey): purchase €1,500,000; full renovation, estimated at around €1,500/sqm, so roughly €500,000. Total capital: a round €2 million.
The comparison: an apartment in a prime spot, or a villa by the sea at Pozzarello
And here it’s worth pausing for the comparison no property listing ever makes: what does €2 million buy on the Argentario today?
In the prime areas, where values run between €10,000 and €20,000 per square metre, €2 million buys an apartment. A beautiful one, renovated, sea view — but an apartment: 100, perhaps 150 square metres, often within a residential complex, almost never with a real garden. In the intermediate positions, it buys a modest villa in the hills, with the sea to look at and a car to reach it.
With the same capital, at Pozzarello, the outcome is different: 336 square metres completely new in systems, efficiency and layout, 5 bedrooms, 44 square metres of terraces, 1,140 square metres of garden, two independent units if needed — 50 metres from the water, with the Yacht Club a short walk away. It’s not a compromise compared with the prime areas. It’s more house, more land and more sea, at the same price. And the finished product doesn’t compete with the “average” €4,400/sqm market: it competes with the seafront segment — the one with double-digit peaks — where on the Argentario the supply can be counted on the fingers of one hand.
What a seaside villa on the Argentario yields
On returns, two routes.
The first: holiday letting. The seasonal rental market in Porto Santo Stefano shows asking rents in the region of €27/sqm per month in peak periods (Immobiliare.it). For a villa of this size and position, a prudent assumption of 10–12 weeks let across high and mid season points to an estimated gross of €50,000–70,000 a year — more if the two independent units are let separately, which doubles the commercial flexibility. On total capital of €2 million, that’s a gross yield of 2.5–3.5%. Let’s be clear: you don’t buy a seaside villa for the cash flow. The rental income, here, is the dividend. The real return is something else.
Appreciation: the past five years and the next five
The second route, precisely: appreciation. Let’s look back, then forward.
Back: had Pozzarello merely tracked the regional average (+18.2% over five years), a €1.5 million property bought in 2021 would be worth around €270,000 more today. Without lifting a finger.
Forward, three scenarios for the next five years: a prudent scenario, at half the historical pace (+8–9%): the €2 million invested becomes roughly €2.2 million; a scenario in line with the past five years (+15–18%): roughly €2.3–2.4 million; a scenario in which Pozzarello’s value gap re-aligns towards the promontory’s premium areas: beyond that.
These are projections, not promises. But they rest on three structural factors that don’t depend on cycles: supply on the Argentario cannot grow (landscape protection, finite territory), demand for seaside second homes in Tuscany has been expanding for five consecutive years, and the position — 50 metres from the water — cannot be replicated.
The market rewards finished houses because they’re convenient. But convenience has a price, and it’s steepest precisely where demand is strongest. The value, often, sits on the other side: where you need vision, a properly done survey, and the willingness to take on work most buyers won’t.
Villa Felix, Pozzarello. 336 sqm, €1,500,000, ref. Hm209. The full listing is here [→ listing Hm209 link] — and if you’d like to reason on the real numbers, not the brochure ones, get in touch [→ contact/valuation link].
Cassiano Sabatini
Sources: Abitare Co., analysis of 134 Italian coastal locations, July 2026; Immobiliare.it, Monte Argentario property market observatory; Idealista; OMI Monte Argentario quotations. Renovation, rental and appreciation estimates are the author’s working hypotheses and do not constitute financial advice.
FAQ
How much do houses cost on Monte Argentario?
The municipal average is around €4,400–4,750 per square metre, with peaks of €10,000–12,000 in the prime areas (Cala Piccola, the harbour of Porto Ercole) and €15,000–20,000 for iconic seafront properties at Sbarcatello, around Hotel Il Pellicano and on the southern side of the promontory.
Is it worth buying a renovation property by the sea?
In irreplaceable positions, yes: the price reflects the property’s actual condition, and the capital invested in the renovation goes entirely into the house as you want it, with today’s systems and efficiency.
What does a seasonal rental villa yield in Porto Santo Stefano?
A prudent assumption for a large villa close to the sea is €50,000–70,000 gross per year over 10–12 weeks of letting, equal to a gross yield of 2.5–3.5% on capital.
