The imposing front facade features a triangular frontispiece on roof level which foregrounds the manor's entrance. The rhythm of the facade, as well as the building's internal structure, is determined by the stone-framed windows which are placed in pairs and groups of three. The ridge of the roof is crowned by four wide cornice chimneys.
The oak double doors, which mark the centre line of the building, are decorated with unique baroque carvings. In front of the main entrance is a large limestone balustrade terrace that originally had a sculptural design. The more simply designed back of the building features wide, curved stairs.
The basement floor features vaulted ceilings. In the middle of the ground floor there is a marble tiled lobby and a grand staircase which goes through the whole building. On the first floor there is a great hall with stucco ceiling and an enfilade of other reception rooms.
Nowadays, the castle is a home to Hiiumaa vocational school and Suuremõisa kindergarten and elementary school.
