Architect Jean Nouvel's Philharmonie de Paris is set to become the world's most expensive concert hall. The project survived the French government's cull of major cultural projects in 2013, and when it opens this month it will be both an architectural and an acoustic marvel.

Construction costs of the 2400-seat venue, located in the Parc de la Villette on the north-east edge of France’s capital, are now expected to come in at €387 million, nearly double the original estimate of €200 million. Central to the development is the symphonic hall, known as the Grande Salle….