The library has a crypt above which the building has two unequal storeys giving the impression of three. The ornate Deansgate facade has an embattled parapet with open-work arcading under which is a central three-bay entrance resembling a monastery gatehouse. Its two-centred arched portal has doorways separated by a trumeau and tall windows on either side. Above the doors are a pair of small canted oriel windows. Surfaces are decorated with lacy blind tracery and finely-detailed carving. The carving includes the "J. R." monogram, the arms of Rylands, the arms of Rylands' native town, St Helens, and those of five English, two Scottish and two Irish universities and those of Owens College.