Château Saint-Léger hosts conferences, seminars, executive committees, product launches and company receptions for 10 to 310 guests. The venue stands inside the iXcampus technology and university campus in Saint-Germain-en-Laye, in the Yvelines, about 30 minutes from Paris. It is sold for professional events: the site describes a conference center of 1,600 square meters with two auditoriums, a large glass hall and two meeting salons in the historic house.
Seminars and company events
The château covers most business formats on one site. A board or an executive committee can meet in one of the two salons on the ground floor, each listed for 16 people seated. A training day or a workshop for up to 40 fits the Petit Auditorium. A general meeting, a conference or a premiere for up to 270 goes to the Grand Auditorium, and a launch, an exhibition or a company reception for up to 310 to the Grande Verrière.
A dedicated team follows each event, from logistics to catering. For launches and evening events, the Grande Verrière has a 270-degree video mapping system. Team building can also take place at Le Tremplin, a 1,200-square-meter sports center in the park.
Rooms and capacities
The Grande Verrière is the main reception space: a circular, glass-roofed hall of 1,200 square meters, listed for up to 310 guests for a conference, a cocktail, a seated dinner or a showroom. The Grand Auditorium is listed for 270 guests and shows 204 fixed seats on its technical sheet. Movable side panels let in daylight, and the room can be darkened for projection. Included equipment covers a 10,000-lumen laser projector, hand-held, headset and gooseneck microphones, a digital mixing desk, a stage computer and a technician. The control room can record video.
The Petit Auditorium, on the mezzanine level, seats 40 and has its own projector, a videoconference system and a wireless microphone. Salon Erbium seats 16 under a Neo-Renaissance ceiling, with a large fireplace, parquet marquetry and a built-in bar; it can also be hired for a private dinner or a business breakfast. Salon Neodyme also takes 16, with a large screen and daylight. Both salons have a screen, a paperboard and a tea point. The Vestibule and Grand Escalier, a columned hall lined with mirrors, takes 50 for a cocktail or a welcome, at the top of the stone staircase leading to the glass hall.
Accommodation
There are no bedrooms on site. The team recommends partner hotels near iXcampus.
Catering
Catering comes from a short list of local partner caterers, who cover breakfasts, coffee breaks, buffets, lunch boxes, cocktails and seated dinners. For daytime events, L'Orangerie, a restaurant on the campus close to the château with a terrace facing it, offers a simpler lunch option and can host an outdoor cocktail in summer.
History and setting
The house was built in 1884 by the architect Léon Carle, with Neo-Gothic decoration, and redecorated in the Louis XV style in the 1920s. The steel research institute IRSID bought the estate in the 1950s and added buildings in the park, some with elements by Jean Prouvé. In 1991 the architect Dominique Perrault turned the house into a conference center, adding the glass hall and an underground auditorium. After a period of neglect, iXblue and iXcampus took over the site in 2016; restoration began in 2018 and was completed in 2021. iXcampus has held B Corp certification since December 2023.
Getting there
The address is 34 rue de la Croix-de-Fer, 78100 Saint-Germain-en-Laye. By road, the A14 and A13 motorways serve the site. By public transport, take the RER A to Saint-Germain-en-Laye, then the R2 bus, or Tram 13 to Lisière Pereire or Fourqueux-Bel Air. The venue can arrange shuttles from the RER station, from train stations or from airports. A private car park holds 70 cars.





