Alte Oberpostdirektion, Post office administrative building in Koblenz, Germany

The Alte Oberpostdirektion is a three-storey historicist building at Clemensplatz 1–5 in Koblenz's old town, built after 1881 for the Oberpostdirektion Koblenz. Its four wings enclose a rectangular courtyard, and the outer facades are clad in red and white sandstone from Kyllburg, while the courtyard facades are only plastered. A gate on Clemensplatz leads into the courtyard, above which a balcony with balustrade rests on consoles.

Built during the expansion of German postal services in the 1800s, this structure served as a central administrative hub for mail operations throughout the Rhine region. The building demonstrates how crucial Koblenz became as a communication center during the period of industrial growth.

The building reflects how important postal workers were in the 1800s, with its grand design meant to show the significance of communication and administration. Visitors can still see this emphasis on institutional authority through the carefully crafted stone details.

The building sits centrally in Koblenz and is easily reached on foot, with its exterior architecture clearly visible from the street. Visitors should be aware that this is a functioning building and interior access may not be readily available without prior arrangement.

The building stands on the site of the Lenz'sches Haus, a house built in 1786–1787 and demolished in 1881 together with two neighbouring buildings to make room for the new post office. Its neighbour, the Lassaulx'sches Haus, was built at the same time and still stands beside it.