The Knightsbridge property is introducing The Berkeley Rooftop Bar to offer visitors a range of cocktails and small plates while soaking up the views across the UK capital.
The rooftop area, which also includes a pool, is usually reserved for guests staying at the hotel but will open to all during the evening from 1 August.
Tables at the bar must be booked while poolside loungers will be available for walk-in customers only. The bar will be open from Tuesday to Saturday from 7.30pm to 11pm.
The Berkeley is also home to Marcus Belgravia, a Michelin-starred restaurant from celebrity chef Marcus Wareing, as well as offering afternoon tea at Pret-a-Portea and drinks at the longstanding Blue Bar.