On 12 November 2025, Domaine Sigalas passed to Kir-Yianni. The Naoussa estate acquired the majority shareholding in the Oia winery from a company owned by the Greek shipowner Thanassis Martinos, taking outright what it had managed since 2020. Kir-Yianni’s vineyards had stood in Naoussa and Amyndeon, both in Macedonia; Santorini is its first ground beyond them.

What was agreed

The estate that changes hands cultivates 45 hectares in the village of Oia and the country around it, in the northern part of the island — 17 of those hectares newly planted. The relationship between the two estates began in 2009, in support of Paris Sigalas’s vision for what Santorini could be; from 2020 Kir-Yianni took over the management of the winery and set an investment plan running. The acquisition closes that arc rather than opening one.

‘The acquisition of Domaine Sigalas is the strongest vote of confidence in the vineyard and the wines of Santorini,’ said Stellios Boutaris, winemaker and chief executive of Kir-Yianni. The estate’s own account of the succession names the people who will carry it: the oenologist Sara Iakovidou, and the agronomists Stratos Guillame Xirafis and Kostas Tellis.

The estate Paris Sigalas built

Domaine Sigalas began in 1991, when Paris Sigalas — a mathematician out of a Santorinian winemaking family — turned the rigour of one discipline on another. The 1991 Santorini was his maiden vintage, and the beginning of the estate’s operations. What followed made the island’s white legible to the rest of the world: Assyrtiko, taut and saline and unmistakable, carried onto lists far beyond Greece.

The material he worked with is unusual to the point of singularity. Assyrtiko occupies roughly 70 per cent of the island’s land under vine. The vines are ungrafted, coiled into the kouloura, the woven basket that turns the plant in on itself and shields the fruit from the meltemi. The soil is volcanic, and it is one of the rare vineyards in the world that phylloxera never reached — ground that has been cultivated without interruption for more than 3,000 years.

A vineyard in retreat

The timing is not incidental. In its own harvest report of 2 September 2025, the estate put the island’s entire crop at 450 tons, a third consecutive year of decline, with yields in some places hardly reaching 500 kilos of grapes per hectare — the lowest recorded. Assyrtiko and Athiri came in between 8 and 23 August. Sigalas’s own production fell 15 per cent, its third consecutive vintage of decline.

The estate is unsentimental about why. Decades of poor cultivation practice, an ageing population of vine growers and a scarcity of hands to work the ground are the structural causes; climate has amplified all three. A mild winter left bud break uneven, southwestern winds damaged shoots and leaves in the south of the island, and rainfall arrived at half the average of the last 20 years.

Against that arithmetic, 17 newly planted hectares out of 45 is the most substantive sentence in the announcement. It is a great deal easier, on an island where grapes have become scarce and dear, to trade on the scarcity than to plant into it.

What it changes

Santorini’s vineyard has spent a decade being valued by everyone except the people who farm it — land worth more as a view than as a crop, water worth more to a hotel than to a vine. That the reference estate on the island has passed not to outside capital but to a Greek family that already makes wine in two other regions is, on any reading, the more durable outcome.

Kir-Yianni was founded in 1997 by Yiannis Boutaris at Naoussa, and the family counts six generations in wine; a younger Yiannis Boutaris, son of Stellios, began his own career on Santorini. The group now holds estates in three regions — Naoussa, Amyndeon and Santorini — and the last of them is the one that will be watched.

For the client who keeps a cellar, the practical consequence is narrow and worth knowing: the wines will be made by the same hands that have made them since 2020, on vineyards that now answer to the people farming them. Continuity, in a place where very little else has been continuous, is the whole of the news.

The house makes the introduction, for those who ask.