It’s time for a new edition of Heritage Days ! A landmark event celebrated throughout France, these days offer the perfect opportunity to explore the country’s rich heritage. For the curious and history buffs alike, this new edition promises fresh discoveries, offering privileged access to treasures often hidden from the general public. And on the weekend of September 19 and 20, 2026, Beaumont-sur-Oise has plenty of great visits and activities in store!
Situated on the banks of the Oise in Val-d’Oise, Beaumont-sur-Oise is steeped in history. Known since Roman times, it has weathered the centuries, leaving behind a rich and varied architectural heritage. The Château de Beaumont, its ramparts and its churches are silent witnesses to the turmoil and grandeur of the past. A stroll through its streets is a true immersion in history, with a new chapter in its fascinating story unfolding at every turn.
Why is Beaumont-sur-Oise a must-see during the 2026 Heritage Days? Alongside its architectural heritage, the town puts on a dazzling display for the event, offering workshops, guided tours and activities for young and old alike. It’s an invitation to discover or rediscover this gem of Île-de-France, where history meets a warm welcome and passion. Don’t miss this unique opportunity!
Heritage Days 2026: the Beaumont Palace cinema, a listed historic monument, opens its doors
On the occasion of Heritage Days, this Saturday, September 19 and Sunday, September 20, 2026, the Val-d'Oise’s best-known cinema reveals a different side. Find out what's on this weekend. [Read more]
Heritage Days 2026: Weekend tours of Beaumont-sur-Oise Castle (95)
Beaumont-sur-Oise Castle unfolds during these Heritage Days. A medieval relic, the castle’s keep dominates the banks of the Oise and offers a splendid view of Saint-Laurent Church, to be explored on 19 and 20 September 2026. Discover the program! [Read more]
Bank of France in Beaumont-sur-Oise
Visit to the studio of artist Ghass
Ghass was fifteen when the revolution began. Like many boys his age, war felt inevitable. He spent two years on the front lines. A year after the war ended, he decided to head to Paris, hoping to dispel the images of war that had so deeply marked his youth. He never came back. It was 1989.
A multidisciplinary artist, he speaks to the general public through a variety of expressive media—painting, drawing, sculpture and more. For him, art is a bridge that binds people across the past, present, and future, a universal channel for messages.
Participation conditions: Free of charge | No reservation required
Schedule: Sunday, September 20, 2026 – 10:00–12:00, 14:00–17:00
Saint-Laurent Church in Beaumont-sur-Oise
Climb to the top of the Beaumont-sur-Oise bell tower
The bell tower opens to visitors only during the European Heritage Days!
Come tackle the stairs to the tower and reach the summit for a spectacular view over Beaumont and its surroundings, seen from above!
The bell tower is a treasure trove, from its Renaissance animal sculptures to the hundreds of graffiti that attest to five centuries of climbs.
Participation requirements: Entry is free and open to all. Because the space is very tight, the number of visitors per ascent is limited. You’ll need to grab a ticket and wait for your turn. - Free | No reservations
Schedule : Sunday, September 20, 2026 — 2:00 PM to 6:00 PM
A tour of Saint-Laurent Church in Beaumont-sur-Oise
Self-guided tour of the church, with optional on-site commentary by members of the Beaumontois Heritage Circle.
Participation conditions: Free entry — No reservation required
Schedule: Sunday, September 20, 2026 — 2:00 PM to 6:00 PM
Hotel of the Crescent
Forty years of the Val-d’Oise Departmental Archaeology Service
Never-before-seen artifacts uncovered during the major excavations at Beaumont-sur-Oise Castle between 1983 and 1991.
Participation requirements: Free | No reservation required
Hours: Saturday, September 19, 2026 — 10:00 AM to 6:00 PM | Sunday, September 20, 2026 — 10:00 AM to 6:00 PM
A Tour of the Croissant Hotel
The Hôtel du Croissant, a 17th‑century townhouse with an impressive forecourt, now houses the Maison des Arts et du Patrimoine of Beaumont-sur-Oise. The archaeological and artistic collections are open to visitors, as is the building itself and the gallery of the Beaumont-sur-Oise Society of Fine Arts.
A tea room greets visitors in a welcoming atmosphere, and a bookstore on the history of Beaumont is also available.
Participation terms: Free admission - Free of charge | No reservations required
Hours: Saturday, September 19, 2026 — 10:00 AM to 6:00 PM | Sunday, September 20, 2026 — 10:00 AM to 6:00 PM
Tour of the Hôtel du Croissant's Cellar
Beaumont-sur-Oise has its own vineyards and wine! The upkeep and production are handled by the Friends of Beaumont, who will be delighted to give you a tour of the cellar and let you sample their production.
Come taste Beaumont’s wine in a historic setting dating back to the 16th century.
Participation requirements: Free | No reservation required
Hours: Saturday, September 19, 2026, 2:00 PM–6:00 PM | Sunday, September 20, 2026, 2:00 PM–6:00 PM
Jeanne d’Arc Institution
Visit to the Jeanne d'Arc Institution Chapel
In 1678, Catherine Domilliers left to the Hôtel-Dieu of Beaumont-sur-Oise a sum of three hundred livres to establish a convent of nuns to educate young girls. Thus the Jeanne d’Arc institution was born. In 1790, the boarding school opened. In 1846, the Hôtel-Dieu and the boarding school were permanently separated, and the latter moved to Rue Alsace-Lorraine, at its current site. It was then that the Jeanne d’Arc chapel was erected.
Participation requirements: Free | No reservation required
Hours: Saturday, September 19, 2026, 2:00 PM–6:00 PM | Sunday, September 20, 2026, 2:00 PM–6:00 PM
Évariste Gallois High Schools
The Gallo-Roman heritage
A tour of the Gallo-Roman amphitheatre, once at the heart of the ancient city of Beaumont-sur-Oise, now tucked inside the grounds of Lycée Évariste Galois.
Participation terms: Free admission – No reservations required
Hours: Saturday, September 19, 2026 — 10:00–12:00, 14:00–16:00
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Dates and Opening Time
From September 19, 2026 to September 20, 2026
Location
Beaumont-sur-Oise
beaumont-sur-oise
95260 Beaumont sur Oise
Route planner
Accessibility info
Access
Transilien line H Persan-Beaumont station
Prices
Free
Official website
www.beaumontsuroise.fr
