M Social Hotel Paris is a four-star hotel at 12 Boulevard Haussmann, in the 9th arrondissement, with six meeting and event rooms for groups of 10 to 85 guests. The official venues page lists board meetings, private dinners, weddings and celebrations as uses, and describes flexible layouts. The Art Nouveau foyer gives access to all the meeting rooms, which makes coffee breaks and receptions simple to organize between sessions.
Seminars and company events
The rooms suit small and mid-sized business meetings rather than large conferences. The largest, Grand Opéra, seats 85 in theatre style or 40 around a board table. Salon Concorde, at 45 sqm, is described as suited to boardroom meetings or private dinners. Madeleine and Montmartre each cover 35 sqm and take about 25 executives in a board layout. Pereire, the smallest at 25 sqm, is for up to 10 guests.
The foyer is the shared circulation space. It includes a bar and entertainment area and is presented for coffee breaks, informal meetings, cocktails and receptions. A typical day could therefore use Grand Opéra for the plenary, Madeleine and Montmartre for breakouts and the foyer for breaks.
Weddings and receptions
The venues page states that the event rooms can host weddings, private dinners and celebrations. It does not give wedding-specific capacities, so use the room figures below and ask which room the hotel recommends for a ceremony or a dinner.
Rooms and capacities
Grand Opéra, 94 sqm, combines the two Opéra rooms. It is the largest venue in the hotel: up to 85 guests in theatre style or 40 in a board layout.
Salon Concorde, 45 sqm, seats up to 30 for meetings or banquet-style events. The same page also lists 60 people for this room, so ask which layout reaches that figure.
Madeleine, 35 sqm, is for small meetings and pre-conference drinks, with a board layout for up to 25.
Montmartre, 35 sqm, has natural daylight. It takes 20 guests for a small private banquet or 25 for a board meeting.
Pereire, 25 sqm, is the most intimate room, for up to 10 guests.
Foyer, 126 sqm, is the Art Nouveau space with a bar and direct access to all rooms.
Accommodation
The hotel has rooms and suites, from the Grande Signature Room of 21 to 30 sqm, for up to three guests, to suites of 45 to 55 sqm for up to four. The total number of bedrooms is not stated in the text provided, so request it when planning a residential seminar.
Catering
The hotel has a restaurant, Papillons & Co by Beast and Butterflies, and Bar Le Douze, set in the lobby under a glass dome and a chandelier. The site does not describe event menus.
Getting there
The address is 12 Boulevard Haussmann, 75009 Paris. The Grands Boulevards, the Opéra district and the department stores are within walking distance. Richelieu-Drouot is the closest metro station. Paris-Charles de Gaulle and Orly are the main airports.





