Complex sentence: Current productions are staged at the Opera House of the John F. Kennedy Center for the Performing Arts, although, while that facility was being renovated during 2003, performances were given at Consitution Hall in the DAR building.
Split into simpler sentences: Current productions are staged at the Opera House of the John F. Kennedy Center for the Performing Arts. While that facility was being renovated during 2003, performances were given at Consitution Hall in the DAR building.