Liven up your holidays!

Osny

Tourism, holidays & weekends guide in the Val-d'Oise

In the Val-d'Oise, come meet Osny. This charming town, full of history, has welcomed for a time of life, many personalities who have left their imprint in the commune. Among the best known, Paul Gauguin, Camille Pissarro and William Thornley lived in Osny. The town is located on the banks of the River Viosne and is also crossed by the Couleuvre. Beautiful landscapes punctuated by streams that have undoubtedly inspired the artists mentioned above. Osny, like many other communes of Val-d'Oise, is part of the new town of Cergy-Pontoise. Inspired place, Osny is an old town full of history. It dates back to Prehistory where megaliths and pottery testify to the presence of man in this territory. Although the village remained small and brief for a long time, it was modernized from the 19th century onwards. The mills flourish in the village announcing the establishment of cotton industry, the manufacture of straps and barrels and the size of steel. After the Second World War, the city grew and developed considerably, while preserving the testimony of the past. Old stones and modernism mingle in this pleasant city to live.

Geographical information

MunicipalityOsny
Postcode95520
Latitude49.0700239 (N 49° 4’ 12”)
Longitude2.0627150 (E 2° 3’ 46”)
AltitudeFrom 27m to 102m
Surface area12.52 km²
Population17330 inhabitants
Density1384 inhabitants/km²
PrefectureCergy (1.9 km, 4 min)
Insee code95476
IntercommunalityCA de Cergy-Pontoise
DepartmentVal-d'Oise
RegionIle-de-France

Nearest cities & towns

Génicourt4.6 km (12 min)
Cergy4.7 km (13 min)
Boissy-l'Aillerie4.8 km (13 min)
Pontoise5.3 km (14 min)
Montgeroult6 km (16 min)
Saint-Ouen-l'Aumône6 km (16 min)
Ennery6.3 km (13 min)
Puiseux-Pontoise6.4 km (15 min)
Livilliers6.9 km (15 min)
Hérouville-en-Vexin8.9 km (16 min)
Courcelles-sur-Viosne8.9 km (16 min)
Épiais-Rhus9.2 km (17 min)
Cormeilles-en-Vexin9.2 km (16 min)

Things to see and do

Osny invites you to a stroll through time with no less than five buildings classified as Historic Monuments. The tour begins with the castle of Grouchy which today houses the town hall. The imposing classical building rises on two floors and extends over no less than eleven spans. The park of Grouchy adjacent to the castle also knew to preserve some vestiges of the past time. Among them, the peristyle resting on seven columns and sheltering a replica of the Allegrain Nymph. Nearby, the dovecote of the castle dates from the 10th century and is housed in a tower. Further on, the column of Réal rises. Also known as the Lameth pyramid, it is actually an obelisk. Finally, the visit ends with the church of Saint-Pierre-aux-Links. Dating from the 13th century, it was built in replacement of a chapel of the 11th century, some remains of which have been preserved. Among the other old stones that adorn the town, you can admire the castle of Busagny which currently houses a college. The mill of Ars presents a very exceptional impeller dating from the twelfth century. Finally, all you have to do is finish your walk through the Immarmont neighborhood and the rue des Pâtis to admire the old town.

City of inspiration, the artists left memories of their passage to Osny. Cultural diving begins with the William Thornley Museum. Here you will find a complete retrospective of Thornley's work, as well as paintings by other great masters. Attention, the museum can only be visited by appointment in July and closed in August. The usual opening hours resume in September during a free visit. To continue on the same rhythm, the gallery of Grouchy proposes ephemeral exhibitions of canvases and works of painters, engravers.... In a completely different way, Grouchy Park hosts the Fire Department's Departmental Museum. Again, pay attention to the opening hours on Wednesdays, Saturdays and Sundays from 2pm to 5:30 pm. The annual closure takes place in August.

Finally, the municipality has a municipal swimming pool and sports complexes for those wishing to practice their favorite sport.

Places of interest

Monuments
Transport

Events and festivities

Early in May, athletes are honored, especially the runners. Les Foulées osnyssoises bring together athletes of all levels on different courses. Who will be the winner ? Maybe you !

In early October, the flea market moved to Osny. Many exhibitors are present as every year to welcome visitors.

In early September, the feast of Saint-Fiacre invaded the district of Immarmont and the park of Grouchy. On the program, flea market, ceremonies of the sparkles and market 100% nature.

In early November, do not miss the cultural event of Osny, the fair of Val de Viosne. Housed in the magnificent castle of Grouchy, this fair brings together an impressive number of painters and sculptors who have exhibited their works to the delight of art lovers.

Weather

Sunday 5 may
Min. 6°C - Max. 17°C
Day
Night
Monday 6 may
Min. 12°C - Max. 18°C
Day
Night
Tuesday 7 may
Min. 7°C - Max. 17°C
Day
Night

Visits, leisure and activities nearby

Leisure activities

Last nameActivity typeRateCity
E-Ticket – The Villa Savoye by Corbusier
Culture and education9 € Poissy (16.4 km)
Show: The lady Impressionist vanishes! The little-known Berthe Morisot...
Culture and education17 € Chatou (22 km)
E-ticket – The Basilica Cathedral of Saint-Denis
Culture and education11 € Saint-Denis (26 km)
Behind-the-Scenes Guided Tour of the Stade de France
Culture and education16 € Saint-Denis (27 km)
The Lido Cabaret Show & Lunch – With a glass of champagne
Entertainment150 € Paris (28 km)

Outings

Last nameOuting typeDifficultyDurationDeparture municipality
Beaumont Star Trail
HikeEasy35 minSaint-Germain-en-Laye (18.5 km)
The Impressionist Seine, from Careers to Croissy-sur-Seine
All-terrain bike itineraryEasy1:30Chatou (21 km)
Paris illuminations
Car itineraryEasy2:00Paris (32 km)
Career hike
HikeEasy2:00Saint-Vaast-lès-Mello (32 km)
Bueil - Anet by road bike with canoeing nature Anet
All-terrain bike itineraryEasy55 minNeuilly (49 km)

Restaurants

Bed & breakfasts

Vacation rentals

Campsites

Hotels

Your holidays
A hotel
A vacation rental
A bed & breakfast
A campsite
A leisure activity
A restaurant
A rental car
A plane ticket
By continuing to browse our site, you are agreeing to the use of cookies to improve your experience and make targeted offers.
Find out more and make settings
Your account