World famous award-winning architectural firm Pelli Clarke Pelli Architects is being sued by the Orange County Performing Arts Centre over the design and build of the $240m concert hall.
The centre's committee claims the firm blew out budget as a result of design problems.
Landscape architect Peter Walker and Partners are also being sued by the non-profit committee.
The original budget for the hall was to be $200m.
The Orange County Performing Arts Centre was completed in September last year. Sitting on six acres of land it included a 2,000-seat concert hall and 500-seat multi-purpose theatre as well as rehearsal rooms and a dedicated space for the resident Pacific Symphony Orchestra.
Pelli Clarke Pelli Architects Cesar Pelli has been voted in the past as one of America's top-ten influential living American architects.