Complex sentence: The Picture Playhouse was built in 1925 to the design of J. Stanley Beard in a Neo-Grecian style, with Grecian columns running down the side of the large auditorium which had 570 seats, including boxes to the rear.
Split into simpler sentences: The Picture Playhouse was built in 1925 to the design of J. Stanley Beard. The auditorium was designed in a Neo-Grecian style, with Grecian columns running down the side of the large auditorium which had 570 seats, including boxes to the rear.