As is often the case in this type of building, part of the frontage is in fact a trompe-l’œil. What appears to be two floors on the left-hand side of the building is actually a single, lofty, open space, the Great Hall. An architect's dream, this outstanding light trap houses a monumental staircase, with wood and stone columns and pilasters reminiscent of the Ionic style popular in 17th-century architecture.
The wrought iron banister, in all its elegance and moderation, features in architecture books published at the turn of the 18th century.