|Intercommunality||Communauté d'agglomération du Plateau de Saclay|
|• Mayor (2008–2014)||Michel Bournat|
|Area1||11.60 km2 (4.48 sq mi)|
|• Density||1,800/km2 (4,700/sq mi)|
|INSEE/Postal code||91272 / 91190|
|Elevation||57–172 m (187–564 ft)
(avg. 61 m or 200 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.2 Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once.
The town is crossed by and named after the Yvette river. The total area is 11.60 km2 (4.48 sq mi) and 4.07 km2 (1.57 sq mi) is green spaces and woods.
The town of Gif-sur-Yvette is composed of sections:
- in the valley: The Rougemonts, The Mérantaise, The Mairie, The Féverie, Coupières, Damiette, Courcelle, l'Abbaye, les Coudraies;
- on the Moulon Plateau: The Moulon (uninhabited, aside from a research and educational institute);
- on the Hurepoix Plateau: The Hacquinière, Belleville (created before the war) and Chevry (created in the 1970s, and equipped with infrustructure).
Also, the commune's territory includes many forests such as the Hacquinière Wood and the d'Aigrefoin Wood.
The human presence on the Moulon Plateau originates in Neolithic times. Agriculture was developed, notably during the Roman era.
Between the 12th and the 18th century, an important Benedictine abbey was built in Gif.
In the 19th century, Gif remained very agricultural (in particular, operating mills).
After the First World War, the Gif commune experienced an important demographic change. The town took the name Gif-sur-Yvette in 1930.
Inhabitants of Gif-sur-Yvette are known as Giffois.
Gif-sur-Yvette is situated in the "Science Valley" of the Yvette River. Numerous research organizations exist in this area, such as the CNRS (Centre National de la Recherche Scientifique), the CEA (Commissariat à l'Énergie Atomique), Supélec (École Supérieure d'Électricité), the LGEP (Laboratoire de Génie Électrique de Paris, associated with Supélec) and the Institute of Plant Biotechnology. Also, Gif is home to the Centre National d'Études and of the National Police Academy.
Gif-sur-Yvette is served by two stations on Paris RER line B: Gif-sur-Yvette and Courcelle-sur-Yvette. Like all the train stations on this line, one train goes towards/past Paris (Aéroport Charles de Gaulle 2 TGV or Mitry-Claye) and the other goes towards the other end of the line : Saint-Rémy-lès-Chevreuse. The trains arrive generally at 15 minute intervals.
- Juliette Adam (1836–1936), founder of the Nouvelle Revue (1879) and operator of a famous literary club during the Third Republic.
- The Duke and Duchess of Windsor's former country home Le Moulin de la Tuilerie, a sprawling dwelling created from an old mill and a number of barns, is located on the outskirts of town. The couple bought the buildings in 1952 from the artist Drian and were weekend residents for some 20 years. It was the only home they owned together. It has been restored as three individual holiday homes which are available to rent through the Landmark Trust in the UK. Among the Windsors' famous guests at the house were Richard Burton and Elizabeth Taylor, Cecil Beaton and Marlene Dietrich.
- The artist Fernand Léger died on 17 August 1955 in the house where, in 1972, negotiations were held between Henry Kissinger and Le Duc Tho which led to the end of the Vietnam War.
- The actor Richard Bohringer lives in the town. His daughter, actress Romane Bohringer pursued her university studies here.
- The actress and super-model Noémie Lenoir is from Gif-sur-Yvette, in the l'Abbaye section.
- Well-known British chemists who have been working at the Institut de Chimie des Substances Naturelles at Gif include: Derek Barton, Hugh Felkin, Bob Crabtree and Steve Davies.
- The famous astrophysicist Hubert Reeves lived in La Hacquinière.
- Olpe, Germany, since 2001
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