Phantom of London said: "...the Broadway Theatre...the the biggest house in the Shubert Organization portfolio."
The largest Shubert-owned theatre on Broadway? Yes. In their portfolio? No. At least not by capacity. The Forrest Theatre in Philadelphia is larger by 88 seats. Physically, the Broadway I believe is the largest.
While producers may request a specific theatre for their show, it is the landlord that will ultimately decide, prior to execution of the licensing agreement. Part of the agreement, however, is that the show remains in the licensed theatre for the run of show. So a producer can't simply decide to move. If they move, it's because the landlord agrees it's at the end of it's run in that space. There are a lot of scenarios at play, but ultimately it's because the show is no longer viable in its current space, but could be successful elsewhere.
Updated On: 12/12/20 at 08:20 PM