Studio 4 is located in one of the first radio broadcasting buildings in the world, the Maison de la Radio Flagey. Designed by the architect Joseph Diongre, Maison de la Radio Flagey first opened in 1938 and immediately cultivated an international reputation for excellence. The complex houses five studios altogether, and reopened in 2002 after a massive restoration.

The 900-seat Studio 4 has been transformed into a concert hall for orchestras of all sizes, from chamber to symphony. Everything has been done to restore the exceptional acoustical qualities of this hall, without compromising its historical character. Three balconies at the back of the hall, and a lateral balcony on one level, have been added. A system of motorized acoustic banners was installed along the sidewalls to create flexibility to adapt the hall for varied musical needs. This adjustability has been further improved by a reconfiguration of the stage and the orchestra riser system. The rake of the main floor has been reworked in order to improve both sightlines and acoustics. Acoustic isolation has been improved to allow for simultaneous use of all five studios.

Studio 4 serves as the prime recording studio and concert hall for the Flemish Radio Symphony Orchestra. The reputation of the acoustical quality of Studio 4 was always, and continues to be, excellent. The phrase "Live from Studio 4 of the Maison de la Radio" is, for Belgian musical lovers, synonymous with classical music radio transmissions of the highest quality level.

Artec provided Design and Planning services covering Auditorium Acoustics Design and Noise & Vibration Control consulting for this renovation project. The architect during the renovation was Philippe Samyn.