At the Château de Grouchy, music finds its place in a setting that feels a little apart: an old estate, a vast park, tree-lined paths, all dominated by a château listed as a historic monument. On Sunday, June 21, 2026, the Fête de la Musique will echo with several concerts, the lineup of which you can discover below.
Since its first edition in 1982, the Fête de la Musique has opened the streets to both amateur and professional musicians, letting them perform in plazas, gardens, on monuments, or in cultural venues. It’s one of the season’s most popular early-summer events, broadcasting a mix of styles and formats that are often accessible to all.
In the Val-d’Oise, the Château de Grouchy is taking part in the ball. This estate located in Osny derives its name from Marquis Jean de Grouchy, the last private owner of the property and the great-grandson of Marshal Emmanuel de Grouchy. The town of Osny bought the estate in 1987; the site spans about 42 hectares.
The building is thought to have been erected at the end of the 18th century, in a sober, Louis XVI–inspired style, with balanced lines and a fairly classical architecture. Its grounds greatly enhance the estate’s charm. You’ll find wide strolling spaces, a pond, and trees, along with several decorative features like the Temple of Love, an ice house, and various outbuildings. For the Fête de la Musique 2026, the Château de Grouchy thus offers a pleasant, accessible setting for listening to music outdoors, right in the heart of a site that's central to Osny’s history.
The young talents from the music school will open the stage at 5:30 PM with contemporary music workshops, offering a glimpse of the energy and skill of the new generation through a diverse repertoire.
Several food trucks will be on site, serving a varied catering lineup. A must-attend moment for enjoying a relaxed, family-friendly or friends-only gathering, right in the heart of the beautiful Parc de Grouchy.
At 8:30 p.m., the Team Rock band takes the stage, lighting up the park with covers of classic rock, pop, and timeless favorites, inviting generations to sing along and dance.
To cap the evening, several food trucks will be on site offering a varied dining lineup. A must-attend event for a convivial moment with family or friends, in the heart of the beautiful Parc de Grouchy.
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Dates and Opening Time
On June 21, 2026
Location
Grouchy Castle
14 Rue William Thornley
95520 Osny
