Dalnic is among those settlements of Three Chairs that are rich in mansions. The building was built by Gyula Hadnagy in 1908 on the place of an earlier existing building. The mansion is situated on a parcel surrounded by a stone pillar fence that has walled footing. The time of the construction is indicated by the Latin inscription of the stone plate found in the eastern side corner tower of the building.
The building has got L shape ground plan and under the whole mansion a cellar lies. On the main façade of the building asymmetric towers stand out, among them you find stone stairs with wrought iron handrail that lead to the two wings of the building. The footing covered by natural stone is broken by the rectangular shape windows of the cellar. Above them, carefully framed windows stand out of the façade.
In 1949 about 16 outbuildings (granary, stables, storage buildings, bakery, etc.) enclosed the manor house.
The building complex entered into the possession of the State Farm of Dalnic. In 2002 István Hadnagy could regain only the mansion and the granary and he sold these.