This end of the transept was rebuilt after the fire of 1292. Having been greatly injured by another fire that broke out about a hundred years later, Bishop Strickland rebuilt it (1400-19.) During the restoration of the cathedral it was once again rebuilt.
On the west side is a Norman arch, the entrance to the north aisle of the nave. The sinking of the tower piers has partly crushed it out of shape. The portion of an arch visible above, acts as a buttress to the tower arches. To the right is a late thirteenth-century window filled with glass in memory of the Rev. Walter Fletcher, Chancellor of Carlisle (died 1846). This window exhibits plate tracery—tracery cut, as it were, out of a flat plate of stone, without mouldings, not built up in sections. It is the transitional link between the lancet and tracery systems.
The doorway in the corner communicates with the transept roof.
The north window is very large, and is filled with stained glass in memory of five children of A.C. Tait, Dean of Carlisle, afterwards Archbishop of Canterbury. They all died of scarlet fever in the short space of five weeks, 6th March to 9th April 1858.
This end of the transept was till quite recently railed off, and used as the consistory court of the Chancellor of Carlisle.
Originally the transept had a chapel on the eastern side opening with a single arch, similar to St. Catherine's Chapel in the south transept.
The opening to the north choir aisle is Decorated in style; above this is a portion of an arch for buttressing the tower-arches.
To the right is the blocked-up entrance of the old Norman choir aisle, an exact counterpart of the present south choir aisle entrance.