The City Hall of Lahnstein is a modern conference, congress, and event center located at the historic Salhofplatz. It is surrounded by the 600-year-old city wall with the monumental Hexenturm.

The City Hall has been extensively renovated and modernized since 2005 in several construction phases. The building has largely remained unchanged and is of particular significance due to its high-quality design and the transfer of the exterior motifs to the interior. Therefore, the hall was included in the documentation directory of cultural monuments in Rhineland-Palatinate in 2008.

The rooms in the City Hall for social and gastronomic purposes are spread across several floors and are connected by stairs as well as passenger and freight elevators, thus making them barrier-free.

All rooms are ventilated, the large and small halls, as well as the three conference rooms, are additionally air-conditioned. The halls and conference rooms can be darkened and are equipped for film presentations. All conference rooms are provided with sufficient power supply of 16 amperes as well as telephone connection.

The range of events is broad – from cabaret, musical, theater, concerts, to exhibitions. The conditions for conferences are also excellent: Starting from the parking lot right at the door, which can also be closed off for events, variously sized rooms, and a tailored gastronomic offering from the in-house tenant.

The location of the City Hall is undoubtedly steeped in history, and there is no doubt about the prominence of its builders.
The internationally renowned Stuttgart artist, Prof. Otto Herbert Hajek (1928 - 2005), designed and shaped essential parts of the City Hall, which is now under monument protection.
Hajek is responsible for the design of the striking ornamental facade made of colored exposed concrete, which continues in the wall, floor, and ceiling design inside. The carpet in the interior of the hall also references the facade in form and color and impresses with a striking look.
Finally, the "Lahnstein" was also designed in the entrance hall by Prof. Hajek, a two-meter-high, triangular obelisk made of gray Lahn marble.