The apartment features currency exchange and a restaurant. Guests can take advantage of shuttle service, laundry and newspaper service.
Major Oberaach sights, such as Bodensee stadium and Rosgarten Museum Konstanz are located nearby. A 15-minute drive will take guests to St. Gallen.
Haus Sonnegg Guest House apartment offers rooms with heating, a private balcony, a dressing area, a personal computer and an iron with ironing board. There is a shared bathroom.
The on-site leisure facilities include a sunbathing terrace, a picnic area and a library. There are activities such as hiking and cycling to diversify guests' leisure.