The John Andrews open air theatre which was developed in 2012 and has become one of Plas Glyn-y-Weddw's main attractions.

During the summer months a varied programme of concerts and theatrical performances are held in the theatre which has capacity for an audience of 250 people.

The theatre is named in memory of John Andrews who was a great-grandson of Solomon Andrews, in recognition of his family’s continued support over many years.

Below the stage there is a multi-purpose room which is mainly used for a programme of artists’ film installations.