The château is elevated on the slope that continues into a rock elevation above a pond. It is a one-storey doublewing building of irregular groundplan that bears evidence of its inhomogenous origin.The facades are covered with sgraffito, partially preserved from renaissance, partially completed during contemporary reconstruction into a wellness centre. The oldest part of the château is the southern wing that was originally an independent palace of a rectangular groundplan. The original disposition has been preserved on the ground floor that is divided into the central hall with barrel vault and two large rooms on both sides into which there used to lead saddle portals from the hall.
Western face of the gothic palace peaks into a conspicuous renaissance gable.
During renaissance the original fortress was extended by a long northern wing that was added to the elevated older peripheral wall. South of the gothic southern wing there is the château chaple of The Holy Trinity (on the basis of the vaults with plaster ribs it also originated in 16th century)
Hrádecký pond, above which on a rocky promontory there is the château Starosedlský hrádek, was created in the 15th century for fish breeding and it is used for this purpose until today. The proprietor of the château has a fishing permit, directly from the château there is a road leading to the pond. The wood surrounding the pond has been used for stag and boar hunt.
The château compound is composed of :central building which is the original fortress, an attached new-, built house (from renaissance), a farming building, a granary, a chaple, a garage and a private building.
At the castle that until recently served as a luxury hotel, you can find:
20 rooms (6 suites, 13 double-bed and a single-bed room) from which 6 have a bath in the bathroom and the rest have a shower
A room with a billiard table and a large fireplace
2 saunas with small pools
A Japanese garden
During the reconstruction the château was equipped with hand decorated mahogany furniture .The entrance halls and some château walls are decorated with animal furs and maedieval decorations such as shields, swords and others. In the château there are conference rooms and a bicycle depository