By the 1950s more accommodation was needed, and an extension was added to the rear in 1956, helped by a donation from Sir Harold Parkinson of Hornby Castle.

[3] Another extension was added in 2005, designed by Harrison Pitt Architects.

[2] It is constructed in rubble stone with ashlar dressings and a slate roof.

The central bay projects forward and contains a porch with a round-headed entrance flanked by pilasters.

[1] The building is known as the Hornby Institute Community Resource Centre, and has facilities for meetings, conferences, and performances.