In neo-classical style, the Grand Theatre is a massive building, without embellishments, and seems to be carved out of a single block. Its main façade, topped by a long balustrade, features a monumental peristyle-terrace. The ground floor is made entirely of carved limestone with bosses; an entrance portico occupies three bays in the centre. 

On the second floor, five semicircular bays, separated by antique columns, illuminate the foyer. 

This building replaces the former theatre known as "la Bonbonnière" located in Place Verte, which was inaugurated in 1822. Why this change? There were two main reasons: to build bigger and, above all, to meet higher safety standards. 

When the project was born in the minds of the authorities, an architectural competition was launched. Thirty-one anonymous but titled projects were submitted. The project entitled "Will it happen? This was the project of the architect Thirion, who was to build the neighbouring building, "le Manège", almost in parallel. 

From its inauguration in 1892, shows, operas and operettas (Verviers had its own theatre company), musicals (including Annie Cordy and ourvil), concerts (with prestigious names) and music competitions were organised there. The most famous of these was the international 'Vieuxtemps' competition, a world-renowned composer and performer from Verviers, which attracted talented violinists from all over the world. 

Inside, a vast marble staircase of honour. 

On the side, the two staircases are horseshoe-shaped and the columns are neo-Corinthian. We also discover the busts of Henri Vieuxtemps and Roberto Benzi. This decoration was only visible to the wealthy. The present glass doors were made of wood. 

The common people entered through the barely visible wooden side doors and reached the "paradise" via blind staircases. 

The rich interior in the "Louis XIV" style (gilding, ceiling light) is quite well preserved. The ceiling is decorated with mythological representations by the Liège painter Berchmans. The theatre was the first in Belgium to be fully electrified. The large auditorium can accommodate 1,350 people. 

The Grand Théâtre de Verviers was listed in 2003 and has been included in the list of Wallonia's exceptional heritage since 2016.