Location: Farmyard Katterbach
The farm, formerly located at the entrance to Lamersdorf, was probably built as early as 1667.

On the „Plan Geometrique de la Marie de Lamersdorf“ of 02.11.1793 and the Tranchot map 78 of 1806, the farmstead can be seen as it was until the middle of the 20th century.
Around 1830, Hubert Bardenheuer and his wife Sybilla, née Frings, live on and manage the farm, which also includes about 300 acres of farmland.
Hubert Bardenheuer works as a farmer and brewer, and for many years also as mayor of Lamersdorf. In 1860 he erects an inn building in front of the farm on the side of the road. In 1865 he founded a brewery (entry in the brewery register). On the first floor of the inn building is a banqueting hall, on the ground floor the inn.
In the mountain opposite the former vicarage is the ice cellar for cooling the beer for the brewery. In the cold winter months, the ice on the frozen lake around Hof Lützler is cut and stored in the ice cellar (oral tradition from Aloys Esser to Aloys Jansen).
Josepha Hubertina, Josef, Heinrich and Bernhard Bardenheuer were born on the farm. In 1868 Josepha Hubertina marries Peter Katterbach in Nothberg and after 1873 the couple lives on and manages the farm in Lamersdorf. Peter Katterbach then also worked there as a brewer and innkeeper. After 1910, Prof. Dr. med. Bernhard Bardenheuer is registered as the owner of the farm. However, the farm is managed by his nephew Hubert Katterbach. After Prof. Bardenheuer’s death, his son Dr. Hubert Bardenheuer became the owner of the farm around 1920, which was managed by Hermann Bardenberg around 1928.
Around 1934, Karl Leuffen, factory owner and landowner in Eitorf (Sieg), is the owner of the farm; around 1946, Paul Lange and his wife, a née Leuffen, are the owners. Around 1957, the Roddergrube lignite and briquette works from Brühl are the owners; in 1959, it is the Gemeinnützige Siedlungsgesellschaft mbH.
After 1940, the farm is then managed by the last tenant, Gottfried Bardenberg.

The building on the street side, formerly used as an inn, is not rebuilt after its destruction in World War II; the farmstead is demolished at the end of the 1960s.
The site will subsequently be used as a parking area for the inn newly built on the adjacent property in 1975 and later, until the flood disaster in July 2021, for the old people’s and nursing home „Haus Katharina“ located there.