This proposal develops the concept of an opera house that belongs to the city: open, accessible, and firmly embedded in Düsseldorf’s urban fabric. Despite its larger programmatic volume, the building completes the existing perimeter block through continuous street edges and calibrated setbacks that respond to neighboring eaves lines. A single urban gesture at the north-west corner towards Schadowstraße defines the building’s public face and frames a new forecourt. Architecturally, the project is organized around a clear core: a central horseshoe-shaped auditorium linked to the stage volume, with the hall acting as a hinge between public life and backstage operations. The ground floor is released for everyday civic use as forum, gastronomy, and flexible public space while the opera foyer is lifted to the first floor. A continuous internal promenade connects library, education and music school functions, culminating in a publicly accessible Opera Garden and a rooftop studio theatre within an oval landmark volume, extending culture and public space vertically across the city.