The ante room which served the music room is square in plan, with an apsidal wall and a chimneypiece flanked by niches. Adam’s chimneypiece designed for this space does not survive, however Harris notes the plasterwork husk friezes set over the doors, designed by Adam to compliment the chimneypiece design, suggesting that it was executed.

Here we see the survival of another Wyatt ceiling, however King notes alterations by Adam, with the addition of the putti panels. King compares the panels to those used by Adam for the second drawing room at 17 Hill Street in c1778.