The Romantik Hotel Castello Seeschloss in Ascona hosts seminars, banquets and weddings for small groups, with six event spaces holding from 12 to 120 guests and 45 bedrooms on site. It stands directly on the Piazza of Ascona, on Lake Maggiore, in three separate buildings around a Mediterranean garden.
Seminars and company events
The hotel positions itself for small groups. Most meeting rooms are historic salons, plus a tower room with a lake view for the smallest teams. The rooms have painted ceilings, wood panelling and artwork, and the hotel says the technical set-up is functional despite the age of the buildings. Basic equipment is a flip chart, a projector, a Bose sound system, a screen and a whiteboard, and special equipment can be arranged on request. Wi-Fi is part of the conference offer.
Two packages are published for seminar stays. The 360 package covers two coffee breaks, a business lunch, mineral water in the conference room and a three-course dinner. The 180 package covers one coffee break, a business lunch and water. A tasting dinner or a wine tasting can be added. For outdoor sessions the hotel offers the inner courtyard, the palm terrace with a lake view and the breakfast terrace.
Weddings and receptions
Weddings are listed among the uses of the Castello room, the Ristorante al Lago and the two terraces. The Terrazza sala castello takes 20 to 60 guests, and the palm terrace takes 20 to 80 guests in good weather. The Ristorante al Lago seats 15 to 50 indoors and up to 120 outdoors, which makes it the largest space of the hotel.
Rooms and capacities
The Castello room measures 72 m² plus a 20 m² entrance and takes 30 to 60 people. The Torretta, a 26 m² tower room, takes 12. The De Ghiriglioni room, with its courtyard, measures 70 m² and takes 20 to 30. The Ristorante al Lago has a 70 m² indoor room and a garden. The Terrazza sala castello measures 84 m² and the Terrazza delle palme 200 m². Each indoor room lists ten 220 V sockets.
Accommodation
Participants sleep in 45 individually designed bedrooms. The hotel is made up of three buildings: the main house with its medieval tower, the Marionette house with a stone tower facing the pool, and the Villa Rosa. A heated pool, 25 degrees Celsius from mid or late April to early or mid October, sits in the garden and is reserved for hotel guests.
Catering
Catering is handled under the same roof, with several options and advice from the kitchen on tailored concepts. Banquet menu proposals are available from the hotel. The Ristorante al Lago serves lunch, afternoon snacks and a local and Mediterranean dinner, and an aperitif can be taken at the top of the tower.
History and setting
The Castello Seeschloss sits on the lakefront square of Ascona with a view of the Brissago Islands. The hotel has a page on its history, and its three-building layout reflects its growth around the garden. It is also a base for excursions around Lake Maggiore, with golf and bike options listed on the site.
Getting there
The hotel says it is easy to reach by public transport and by car, with a parking page on its site. It closes for the winter: the 2026/2027 closure is announced on the website, so check dates before planning an off-season event.
