A 1,300sq m (13,993sq ft) spa has opened on the sixth floor of the new Hamburg Elbphilharmonie concert hall, a shimmering, glass-covered building designed by Swiss architecture studio Herzog & de Meuron.

The elb spa features six treatment rooms on the upper floors of the Westin Hamburg, and has views of the spot where the port and city meet on the River Elbe.

German skincare brand Babor has created exclusive treatments for the spa, and a Babor retail space is also on-site.

The spa also includes a fitness space and a 20m indoor swimming pool said to be the largest hotel pool in Hamburg, as well as a sauna, sanarium and steam bath.

The Hamburg Elbphilharmonie opened last month, and sits atop the original brick structure of an industrial warehouse on the city’s harbourside.

In addition to the Westin Hotel and Babor spa, the structure is home to two small music venues and a 37m (121.4ft) high public plaza and observation deck, but the main draw is a new world-class concert hall which seats 2,100 spectators across its interwoven tiers.

Speaking late last year, city mayor Olaf Scholz said: “Hamburg is a city of music, and you could call this its parliament. It is a concert hall that will wow the world.”

Over the years of construction, the building has become a landmark on the Hamburg skyline, inspiring a wide range of merchandise in the city based on the silhouette of the instantly recognisable 7,000sq m (75,347sq ft) roof, which consists of eight spherical, concavely bent sections.

“It’s a stunning experience to be in this building,” said Herzog & de Meuron senior partner Ascan Mergenthaler. “It’s like a little city. You literally flow into the building, and the outside world is part of that journey until the very last moment somehow.”