In 1863, the theatre closed for extensive alterations and improvements by C. J. Phipps, who was later the architect of the Savoy Theatre (1881), the Lyric Theatre, Shaftesbury Avenue (1888), Her Majesty's Theatre (1897) and many others. The capacity of the theatre was at this time 889.
In 1863, the theatre shut down for significant renovations by C. J. Phipps, who would later design the Savoy Theatre (1881), the Lyric Theatre, Shaftesbury Avenue (1888), Her Majesty's Theatre (1897) and numerous other venues. The theatre’s seating capacity was 889 at that time.