For a long time the Garden Pavilion that lies between Grafenegg Castle and the Mühlkamp River was a tumbledown ruin and gave little impression of the theatrical evenings and feasts that once took place within. This former theatre in the castle grounds, an angular single-storey late baroque edifice with a hipped mansard roof, was built in the middle of the 18th century. It was once a fascinating sight with its richly stuccoed facade and interior wall-paintings, but in the course of the decades the decay set in.

As part of the regeneration of the castle grounds, the garden pavilion was completely renovated, and now the building gleams in new splendor. It can be hired for events of every kind: private parties, corporate receptions and speeches. Also weddings are possible in this especially festive and romantic atmosphere.