Complex sentence: Additionally there are 11 conference rooms for up to 420 people, 14 offices available for rent, as well as an outdoor area of roughly 80.000 m², which is used to folk festivals, open-air concerts and exhibitions; it is also available for parking.
Split into simpler sentences: Additionally there are 11 conference rooms that can hold up to 420 people, 14 offices are available for rent, as well as an outdoor area of roughly 80.000 m². The area is used to host folk festivals, open-air concerts and exhibitions; it is also available for parking.