In 1962, Raymond Sourdet and his wife plant vines in the terroir of Chézy in La Chapelle-Monthodon. They are mainly farmers. So, they just produce grapes and then sell them to Champagne négociants.
In 1974, their son Patrick and his wife Nadine decide to elaborate their own champagne wines as a Récoltant Manipulant, which means that they grow grapes and make wines themselves. They settle a winemaking cellar equipped with a traditional press. Patrick Sourdet and Nadine Diot joint their names: Champagne Sourdet-Diot is born!
From 1990, Nadine and Patrick refurbish their cellar door boutique and make possible to welcome their numerous private customers in the best conditions. People are coming from France but also from all Europe to discover the beautiful old village of Condé-sur-Brie.
In 1992, they are officially recognized as a landmark on the Route Touristique du Champagne. Some time later, they get the Vignobles et Découvertes award.
In the early 2000s, they get involved in the Fédération des Vignerons Indépendants, a French association of independent winegrowers.
After studying accounting and working for winegrowers, their daughter Ludivine joint hem full time in 2008. She takes care of private customers and management. She is the third generation in Champagne Sourdet-Diot.
In 2011, new investments are made to improve the quality of wines. The cellar is equipped with automatic press and temperature-controlled stainless steel tanks. An oak foudre and 200-liter casks are bought to age some wines of the Insolite range.
In order to welcome private customers, a new space is settled in 2012: with a beautiful view on the landscape, it is really a warm place to discover the wines. Wine lovers can book to visit the cellars and taste the whole range with Ludivine Sourdet and her parents.
Today, just like in the past, the house makes wine only from its own grapes. Champagne Sourdet-Diot is now distributed in Finland, Italy, and Japan, among other countries, and also in independent wine shops.