This imposing building has been listed as a Walloon heritage site since 7 August 1989 and is one of the emblematic symbols of the prosperity of Verviers thanks to its 19th century wool industry. The post office is the work of the Ghent architect Alphonse van Houtte, who completed it in 1909 after five years of work. For almost 60 years, it was the epicentre of the city's communications. 

Its style is a mixture of neo-gothic and renaissance, but the 'Flemish touch' can also be seen. Stone, and especially stone colours, are used extensively in the façades: blue stone for all the carved elements, sandstone for the masonry elements, green sandstone from the Gileppe for the base, pink sandstone from Andenne for the elevations. Numerous ornaments on the façade, figurative decorations or inscriptions, which indicate the various postal services, recall the original function of the building. Others refer to the inventions of the industrial century: light bulbs, electrical appliances, etc. Putti, i.e. medallions decorated with allegorical figures, complete this rich decoration. 

Two round and octagonal towers at the top frame the building. The smaller one measures 50 metres. Its larger sister is 80 metres high, the highest in our city. Originally, wires ran from the various houses connected to the top of the tower. 

To reach the Salle des pas perdus, you have to cross the majestic entrance porch, on which stand two heraldic lions bearing the coat of arms of the City of Verviers and the Province of Liège. The ground floor was used as a post office and the first floor as a telegraph and telephone office. 

Since January 2005, following the completion of restoration and rehabilitation work, it has housed the Forem offices.