Once a chapel on the southern edge of the village, the church now stands its ground as a harmonious building with an onion tower almost in the middle. It is a simple church with wide, round arches on all sides under a large cross vault and a Gothic choir. Large windows featuring symbolised features of Jesus emphasise the light, sacred character of the church.

Cave castle. Strong wall with window slits and high entrance. Remains of wooden beams mark the position of the arbours and external stairs leading to the high entrance. Remains of beams on the top of the wall hint at a roof construction or a wooden upper section. The interior of the cave is largely filled with rock debris. A narrow gap at the foot of the outer wall makes it possible to climb inside the cave.

Our gaze is magically drawn to the shingle-roofed double onion dome, pans across the octagonal tower top and descends to the no less harmonious nave. The wide hall-like nave and the polygonal choir give the church its remarkable size. Some of the statues inside date from the former High Ages, around 1550.

Monumental overall structure of uniform design, almost palatial building. Ground plan and facades in loose symmetry. Finely worked light-coloured limestone for window and door surrounds and building edges. Construction elements made of tuff stone or thick natural stone with raw worked face (bossage); some wall surfaces with Rasa-Pietra masonry.

The slender tower, which was raised in 1698, pulled the whole church skywards with it, so to speak. The choir and nave were lengthened in 1711 and now stand together as one harmonious, unadorned, and sacred work of art. The church is mentioned in 1340 as St. Andrew's Church, and later it was established as a Reformed church in 1644. The cemetery makes an open connection to the former royal court (mentioned in 955).

The church is nestled against the castle hill, finding shelter for itself and its visitors. This impression is supported by the almost completely closed facades facing north and west. The sacral, Gothic choir room stands in dialogue with the nave, which is dominated by wooden fixtures. The galleries on the northern and western walls were built due to the lack of expansion possibilities.

Metal friezes outline the foundations of the medieval Curtis, which translates to royal court. In the Middle Ages, the term "Curtis" refers to a larger dominion with estates, bondsmen, special rights and administrative and agricultural courts. In contrast to the wooden buildings of the peasant population, the very prosperous Curtis of Zizers had representative stone buildings here.

The cubic, palazzo-shaped building with a flat hipped roof guides the visitor to the church via the spacious staircase on its northern side. This section houses the secretariat of the Protestant parish and the playgroup; and merges seamlessly with a shallower section with a steep gabled roof turned 90 degrees. The levels of the second floor are different.