Grosvenor Park Open Air Theatre holds an eight week annual repertory season in Chester, United Kingdom. The productions are staged in the round, in a purpose built theatre constructed each summer in Grosvenor Park.The first stage was built in 2010 for productions by the Chester Performs theatre company; Chester Performs transitioned into the Storyhouse theatre company when the Storyhouse facility was opened in 2017, with a selection of Storyhouse's indoor productions being mounted at the Grosvenor Park Open Air Theatre each summer.