The Grade II Listed,
Neo-Georgian building is faced in English
bond red bricks and dressed with Portland
Stone. The door on Sedding Street is
framed in stone with a carved fluted rod
above the entrance from which a pair of
stone telephone handsets are
suspended. Above the carved "TELEPHONE
EXCHANGE" sign is a cast iron balcony
featuring the royal coat of arms.
The northern elevation, that faces on to
Sloane Terrace, has projecting bays at
either end and a five-bay section between
them.