
HENNESSY Rooftop Bar occupies the rooftop of the Mayfair Hotel at 45 King William Street in Adelaide, offering stunning views across Rundle Mall, King William Street, and the Adelaide skyline. Named in tribute to the architects of the heritage-listed CML Building, the venue blends timeless elegance with contemporary design, featuring crystal chandeliers and bespoke furnishings in both indoor and outdoor areas suitable for year-round use. The menu highlights premium champagne, signature house cocktails, and curated South Australian wines, beers, and spirits accompanied by light meals and classic bar snacks. A smart dress code is enforced, and the venue welcomes groups of 20+ by special arrangement, offering a sophisticated rooftop experience with city views.