Cosy Er Lann hosts seminars, training days, workshops and intimate weddings for up to 30 people, with the whole estate booked for one group. It is a renovated former school with guest rooms, two holiday cottages and a reception room, set in a park with century-old trees at 25 rue de Pontorson in Antrain, part of Val-Couesnon, in Ille-et-Vilaine, 20 minutes from Mont-Saint-Michel.
Seminars and company events
All seminars are held with exclusive use of the estate. Three formats are offered: a study day with the meeting room, the dining room, equipment, meals and breaks; a semi-residential seminar with one night, breakfast and one meal; and a full residential seminar with night, breakfast, lunch, dinner and the meeting room. The hosts build each program to measure.
The main room takes 30 people and adapts to meeting, theatre, workshop or U-shape layouts. It has a projector, a screen, high-speed Wi-Fi, daylight and direct access to the terrace and grounds. Acoustic pods in the room let participants take calls or work alone. Team-building can be arranged with outside partners: tree climbing, hiking, cycling, a visit to Mont-Saint-Michel or a walk across the bay. On site, the group has pétanque, mölkky, Breton palets, cornhole and table tennis.
Weddings and receptions
The estate is booked in full for intimate weddings, birthdays, family reunions, christenings and weekends with friends. Private hire includes the guest rooms, the cottages, the reception room, the dining room, the professional kitchen, the sauna and hot tub, the park, the pool and the terrace. Sound and lighting are available for dancing, and an arcade machine and table football keep guests busy. The hosts connect couples with local caterers, entertainers and decorators.
Rooms and capacities
The reception and meeting room covers more than 80 square meters and takes 30 people. The dining room covers 60 square meters and serves for meals and coffee breaks. Outside, a large terrace can be used for working, lunch or breaks, and the heated pool with a paddling pool is open from May to September.
Accommodation
The estate offers 12 bedrooms for 30 people with shared rooms and beds, or up to 20 people in shared rooms with single beds. There are five guest rooms of about 20 to 25 square meters with private bathrooms, including a family suite of two connecting rooms. The Séquoia cottage, 100 square meters, has two bedrooms and sleeps six. The Cèdre cottage, 160 square meters on the former dormitory floor, has four bedrooms and sleeps ten. Parking is free and pets are welcome.
Catering
There is no in-house restaurant. Meals are served on site by a caterer, a private chef or a food truck, and the hosts can arrange local snacks for breaks. For private events, groups may cater for themselves in the professional kitchen. Breakfast or brunch is available on request.
Getting there
By road, take the A84 exit at Saint-James or the A81 exit at Fougères. Dol-de-Bretagne TGV station is 25 minutes away and Rennes 40 minutes; regional trains stop at Pontorson, 10 minutes away, and Combourg, 20 minutes away. Rennes and Dinard airports are about 45 minutes away, and taxi transfers can be arranged.




