Domaine le Castagné hosts seminars, training days, road shows, incentive days, trade shows, company evenings, weddings and family parties for 10 to 400 guests. It has four reception rooms, 425 square meters of rooms and 490 square meters of terraces, and lodging for more than 110 people on site. The 4-hectare estate is at 910 Chemin de Naréoux, on the Toulouse road, about 4 km from Auch in the Gers, facing the village of Montégut.
Seminars and company events
All four rooms have sound equipment and a video projector, and several can be used together for a plenary session with breakouts. The terraces and grounds take outdoor sessions, a brunch or team activities by the lake. The estate has hosted product exhibitions, after-work events, company evenings and an agricultural equipment show. Through its network of local providers, the team organizes the logistics with you, from catering to entertainment. Extra services include a chauffeur service, drone filming and a photo booth. When a group needs more beds, a shuttle runs to a hotel 3 minutes from the estate. An electric vehicle charging point is available.
Weddings and receptions
Weddings are a large part of the estate's work. Couples use the room that fits their numbers, the terraces and the lake for a lay ceremony or the drinks, and keep guests on site overnight so that nobody drives after the party. The team advises on local caterers, DJs, wedding planners, florists, celebrants, photographers and hairdressers, and follows the couple until the day. Banquet tables seat six to eight. Anniversaries, family reunions and group stays are also hosted.
Rooms and capacities
D'Artagnan is the largest room, for up to 200 guests, used in conference layout for seminars and for weddings and evening events. Porthos takes up to 95, Aramis up to 90 and Athos up to 25; Athos has a 150-centimeter screen with sound. The combined capacity of rooms and terraces is 400 guests. Rooms carry the names of the Three Musketeers, a nod to d'Artagnan, the Gascon hero.
Accommodation
The estate offers more than 110 beds: a large holiday house of 200 square meters for 12 to 15 people, 4 guest rooms for 2 to 4 people each, and chalets and cottages spread across the grounds. All lodgings are rated three stars or three épis by Gîtes de France. A mini-golf course, a fishing lake, a play area and table games keep families and groups busy between sessions.
Catering
There is no in-house restaurant. Meals are provided by caterers from the estate's network of partners, chosen with the team for your event.
History and setting
The family of Véronique Semezies farmed here and opened a farm campsite in 1977. Serge Dupuy built the first holiday houses from 1992, and the first reception room, Aramis, opened in 2017, followed by Porthos and d'Artagnan. Their son Florian joined in 2018 and handles sales. The estate looks across the valley to Montégut, a medieval hilltop village crossed by the GR 653 path to Santiago de Compostela and topped by a private château.
Getting there
The estate is about 4 km from Auch on the road to Toulouse. Toulouse is less than an hour away, Tarbes about one hour, and Bordeaux and the Pyrenees about two hours. For a group arriving by air, Toulouse-Blagnac is the main airport; plan a coach or the estate's chauffeur service.





