The monastery looks back on an eventful building history from the Late Romanesque period to the Late Gothic to the Late Baroque. At the center of the complex stands the former Monastery Church St. Magnus. In the west lies the adjoining Abbey (Abtei) and in the south the Cloister (Kreuzgang) and the Convent Buildings. The New Convent Building (Konventsneubau) in the style of the Late Baroque is located to the north of the church. Today the complex is entered through a Baroque tower-topped gate structure. Originally a protected wall with towers surrounded the monastery area.
Late Romanesque
A first monastery church, the building of which was begun in the 12th century, was completed in the 1230s as a three-nave pier basilica. At the eastern end of the south wall a round arch portal led into the cloister, and from there into the monastery.
Late Gothic
In 1482 Abbot Heinrich Österreicher had a palace-like front section, a porch with official rooms above it, built onto the unadorned western facade of the church. In 1494 the Late Romanesque chancel gave way to an extended monks' chancel with lancet-shaped stained glass windows. The bell tower was increased in height and given a pointed roof in 1493. In 1497 the local master workman Georg Lutz the Elder decorated the nave with net vaulting.
Early Baroque
In 1622 the Weilheim master workman Johannes Guggenmoos provided the bell tower of St. Magnus with an octagonal, onion-crowned superstructure in the style of the Early Baroque period. After the Swedish troops withdrew, the rebuilding of the church, the nave of which had been set fire to by the soldiers, was tackled.
High Baroque
The New Convent Building (Neues Konventsgebäude) is based on the plans of the architect Dominikus Zimmermann from the middle of the 18th century. The vast monastery tract was planned to surround the church with its symmetrical design. Approximately one-third o the building project was realized by the local architect Jakob Emele.
The choir stalls of the St. Magnus provided with lavish carvings in the style of the High Baroque from the workshop of Georg Anton Machein (1685-1793) in Überlingen is one of the masterpieces of the Upper Swabian Baroque period. It was constructed between 1715 and 1717.
The two-story library hall with a surrounding gallery was also completed. The metaphorical world of its splendid Rococo paintings are captivating for anyone who views them.