GAUTHIER MOUGIN DEPARTMENTAL PARK
Au cœur de la Vallée de la Culture, le parc départemental Gauthier Mougin a ouvert au public le 31 janvier 2026.
Ce nouvel espace de 1,6 hectares, dont le paysagiste et concepteur du site est Michel Desvigne, offre un paysage apaisé et culturel, reliant les deux pointes de l’île Seguin et redonne à ce site emblématique un souffle inédit.
Points of interest
A large landscaped park of 1.6 hectares
- Design: Michel Desvigne, Grand Prix de l’urbanisme 2011
- 800 trees planted: hornbeams, beeches, oaks, pines, willows, poplars
- Local species, shrubs, sloping meadows, protective undergrowth
- Restored riverbanks, pedestrian and cycle paths, footbridges and esplanades
- A continuous network of vegetation connects the two points of the island.
An open-air art trail
- An open-air museum, with around twenty works spread between the Pointe des Arts, the park and the surroundings of La Seine Musicale.
- Showcasing contemporary French creation, with works from prestigious public and private collections.
- The Tot’aime, Monument to the Living, monumental sculpture created in 1994 by Jean-Charles de Castelbajac has benefited from an exceptional restoration. This work is part of a remarkable sculpture trail on Île Seguin, developed by the Department since 2017, alongside creations by artists such as Kohei Nawa, Auguste Rodin, César or Jean-Bernard Métais.
- An original artwork integrated into the "Journey through Industries" route to recall the industrial history of the site.
- Support from the Emerige Endowment Fund, led by Laurent Dumas, the National Center for Visual Arts (CNAP), and the Regional Contemporary Art Fund (FRAC) of Ile-de-France.
A sustainable and accessible park
- Pedestrian and cycle paths and plenty of bicycle parking
- Accessibility for people with reduced mobility throughout the site
- Hyperconnectivity to public transport
- Daydé and Seibert bridges to reopen in spring 2026
- Integration into the sensitive natural areas of the Department
BILLANCOURT
The main green space in this eco-district, this 7 ha park features the work of many great architects.
Known as “the Trapeze” for the shape of the plot previously occupied by Renault, the park was renamed “Billancourt” on 4 October 2007.
ACCESS
Address
Gauthier Mougin Departmental Park
Forecourt of La Seine Musicale
Île Seguin
92100 Boulogne-Billancourt
Access :
Metro : line 9 – station Pont-de-Sèvres
Tramway : T2 – stations Brimborion or Sèvres Museum
Bus : line 42 (crossing the island from 2026)
By bike : bicycle parking on the island
On foot : access via the Daydé and Seibert bridges
ACCESS
Address
53 cours de l’Ile Seguin
21 et 67 avenue Pierre Lefaucheux
86 allée Georges Askinazi
15 et 17 avenue Emile Zola
Access
Métro : Pont de Sèvres (M9)
Bus lignes : 26, 160, 169, 171, 179, 279, 291, 389, 467 :
arrêt Pont de Sèvres
Bus ligne : 389 : arrêt Emile Zola
SUBB : arrêt Pont de Sèvres (circuit Sud)
INFORMATION
Openings and hours
Spring (from 1st/3 to 14/5): from 8am to 7pm
Summer (from 15/5 to 15/9): from 7am to 9pm
Autumn (from 16/9) to 31/10): from 8am to 7pm
Winter (from 1st/11 to 29/2): from 8am to 5.30pm
Services and equipment :
Playground
Toilets
Nearest dog park: rue du Vieux-pont-de-Sèvres
Sèvres, à proximité du quai Georges-Gorse (au niveau
du bâtiment « Le Trident »)
Distributeur de sacs pour déjections canines le plus
proche : cours de l’Ile Seguin (au niveau de l’avenue
Pierre-Lefaucheux)
INFORMATION
Openings and hours
Soon
Services and equipment :
– Pedestrian and cycle paths and ample bicycle parking
– Accessibility for people with reduced mobility throughout the site
– Hyperconnectivity to public transport
– Reopening of the Daydé and Seibert bridges in spring 2026
– Integration into the sensitive natural areas of the Department
