The rooftop bar and its panoramic restaurant, Edmond, share the top floor and both welcome outside guests, not just hotel residents. The terrace has been redesigned with a warm, arid-leaning look, dark wood, golden lighting, and desert planting tied to a Sir Davis whiskey theme, which plays off the open-sky panorama rather than competing with it, per the hotel and VisitParisRegion.
The hotel's own guidance is useful: access to the rooftop is without reservation, but to avoid queuing you should aim for a time outside the 7 to 8:30pm rush, exactly when everyone arrives for sunset. Go a little earlier or later and the same view comes without the wait.
Because the Terrass'' sits on top of the Montmartre hill, the rooftop earns one of the most complete Paris panoramas of any open bar.