K6 outside the Masters Lodge, St John's College

The K6 telephone kiosk outside the Masters Lodge at St John's College is a standard design made of cast iron, painted red overall. It features long horizontal glazing in the door and sides, with crowns applied to the top panels rather than being perforated. There are rectangular white display signs reading "TELEPHONE" beneath the shallow curved roof. The kiosk has been updated with modern internal equipment. While the paintwork shows slight discoloration in places, the kiosk is generally in good condition and retains glass panels throughout.

Located prominently, the kiosk significantly enhances the streetscape. It stands next to the boundary wall of the Grade II listed Masters Lodge at St John's College, designed by Sir George Gilbert Scott, who is the grandfather of Giles Gilbert Scott. The K6 also has a visual connection with several listed buildings across Bridge Street, particularly numbers 30a, 29, 26, and 24, and is visible from St Clements Church.

According to the Planning (Listed Buildings and Conservation Areas) Act 1990, the modern telecommunications equipment within the K6 is not considered to have special architectural or historic interest.