The refectory to the north of the church is an elongated cross-vaulted hall (c.5 x 20m) with an apse on the east wall (bearing traces of fresco). The window arches and the transversal arch responds of the original north wall (carrying the vaults) were built in brick. The structure was extensively restored in 1965-69: the site was excavated (an hypocaust belonging to a later Turkish bath was found, as well as a later south wall), the west and south walls, the cross-vaults over the three bays, the barrel vault over the east bay and the conch of the apse were rebuilt.
The Monument House of the Bulgarian Communist Party (also known as the Buzludzha Monument) was built on Buzludzha Peak in central Bulgaria by the Bulgarian communist regime. It commemorated the events of 1891, when a group of socialists led by Dimitar Blagoev assembled secretly in the area to form an organised socialist movement that led to the founding of the Bulgarian Social Democratic Party, a forerunner of the Bulgarian Communist Party.
The monument was abandoned after the fall of Communism in 1989 and now lies derelict.