The eclectic style, inspired by Flemish neo-Renaissance architecture, showcases Beyaert’s mastery: gables, pediments, and richly sculpted details. Two cats sculpted by Georges Houtstont, along with the Old Dutch inscription “Hier is't in den kater en de kat” (“Here we are at the tomcat and the female cat”), gave the building its nickname and a touch of 19th-century Brussels humour.