The dining room would have been located at the back, on the first storey of the house.

It is not known if this design was executed at number 4 Adam Street as there is no known photographic record of the chimneypiece prior to demolition.

This design is a close variant copy of that designed by Adam in c1767 for the drawing room at Fort George. The Fort George design is inscribed in pencil with the words, 4t House D[urham] Y[ard], corresponding with the intended location of this design.

The drawing is inscribed to tell us that the design was also intended for the back drawing room at 4 Royal Terrace. It was not executed in that room, and instead a design was used for which there is no drawing, with volute stiles, enclosed masks in the capitals, a fluted frieze, and a tablet containing an urn surmounted by sphinxes. It survived to be photographed by the LCC in 1936.