La Grange de Colette is a renovated 15th-century barn in Le Tremblay-sur-Mauldre, in the Yvelines, 35 minutes from Paris and close to the Rambouillet forest. It hosts seminars of up to 25 people in a 550 m² house with ten bedrooms, a sauna and a heated pool.
Seminars and company events
The official site presents the house as a setting for concentration, exchange and reflection. The working room is a modular space of 60 m² that seats up to 25 people. It is equipped with a 98-inch screen and a paperboard, and can also be used for yoga classes or film screenings. The rest of the house provides living space for the group: a living room with a fireplace, a dining room, a bar and games room with a billiard table and board games, and a sauna. Outside, there is a 1,000 m² tree-lined garden, a covered terrace of 100 m², a heated pool open from May to September and a pétanque court.
Rooms and capacities
The site gives one clear figure: 25 people for the seminar room and for the house as a whole. The modular room is the only working space listed. For a larger team, the format does not apply. For a group of 15 to 25 it means everyone sleeps, eats and works under one roof with no need for transfers.
Accommodation
The main house has six double bedrooms, each with a shower room, and one bedroom or dormitory with a bathroom. Three more independent bedrooms are in the large outdoor shelter, the préau. That makes ten rooms in total. The barn was fully renovated in 2024.
Catering
The house has a kitchen with a dedicated space for a caterer. Partners offered on the site include a home chef, a caterer and a wine cellar made available in the house, with a house selection to be consumed responsibly. Other add-ons are a running route, yoga or meditation sessions, electric bikes and a creativity coach or facilitator.
History and setting
The barn is a farm building from the 15th century, part of the former farm of the château du Tremblay-sur-Mauldre, in the Haute Vallée de Chevreuse regional natural park. The farm has belonged to the family of Colette since 1890. The owners converted it in her memory.
Getting there
The address is 8 Grande Rue, Le Tremblay-sur-Mauldre. By car it is 35 minutes from Paris via the A13, A12 and N12. The Villiers-Neauphle-Pontchartrain station on line N is five minutes away by car. Orly is 40 minutes away and Roissy Charles-de-Gaulle one hour.
