The Mansion House has an extensive series of rooms where servants prepared and stored food. In the single-storey service wing at the rear of the premises was a back kitchen, a little back kitchen, larder and pastry larder and, most important of all, the great kitchen.
In this room all the great feasts were prepared, held by the Corporation to entertain the local and the visiting gentry and nobility. In the early nineteenth century, the mayor routinely hosted six great feasts each year. There was an October feast, held after his election to office, balls and suppers in honour of the king and the queen, two dinners for the assize judges and a ‘Green Goose feast’. There would also be ‘occasional dinners to strangers to support the credit of the corporation’.
The Great Kitchen is now used by the Borough Registrars for wedding ceremonies.