The Harbour Light Theatre was thought to have been designed by J.S. and M. J. Guthrie and purpose-built as a picture house and theatre for the Lyttelton Picture Company. It could seat 550 people in both stalls and circle. The front of the building was two storeys high, with a mezzanine floor, and two decorative brick towers topped with spherical domes on either side. The entry was framed by large Tuscan columns, with quoin stones on the corners of the building. The material of the building was mostly brick with a stucco finish on the facade painted white in the “California style”. The entrance featured an art nouveau style etching of a pattern above the verandah roof.