The following are crude notes and links I have gathered during my research. The information may be in various languages and is being updated during the research process until a full article is written.
Studies hold the design of architect Santiago Calatrava responsible for the building´s bad state. According to Aidico, the technological institute of construction, The institute points to an incorrect design and choice of materials or construction errors or both. According to an internal report Calatrava was responsible for both the design and its execution, for which he received 44 million €.
Due to its bad state the building has been closed since December 2013. The architect has offered to pay for the repair of the damages. Some, however, wonder if the repair of a deficient design is a lasting solution for the Palau´s problems. Opposition politicians urge the local government to take legal action against Calatrava, following the example of the cities of Oviedo and Venice.
It is incredible that while some buildings of the ambitious Valencian City of Arts project have not yet been officially completed (the Agora is still waiting for its wings that lay abandoned on a nearby wasteland) others already fall into decay.
After the building´s grand opening in 2005 it remained closed for one year. The building contains four opera halls, one of which has never been used. Another has been closed because of bad acoustics (mozaique walls turned the hall into what must have sounded like a large public lavatory), and yet another has seen 200 seats removed because from their position the stage was not sufficiently visible.
Valencia’s opera house opened eight years ago. Since then, the City of Arts and Sciences has added significantly to Valencia’s mountain of debt, at a time when Spain has been struggling on the front line of the euro crisis. Originally budgeted at €300 million, the complex — the world’s largest collection of Mr. Calatrava’s work, which also includes a performance hall, a bridge, a planetarium, and a science museum — ended up costing three times as much. Mr. Calatrava was paid about €94 million for the project.