By contrast to the exterior the interiors are an extravaganza of rococo architecture in its highest form. The principal rooms: the north hall, a double cube room () may have lost its adjoining hall under the lost dome. However, its magnificence remains. The broken pedimented door cases are adorned with rococo carving, by Luke Lightfoot, the most talented wood carver of the era, who worked extensively on the great mansion. His work can be found on the ceiling and the niches in the walls. The adjoining saloon is slightly more restrained in its decoration. However the ornate carving continues into the dado rails, and onto the Corinthian columns supporting the huge Venetian window. The third principal room was redecorated as a library by Parthenope, Lady Verney in 1860. The plaster rococo ceiling remains in all its splendour.