 Broughton continued to enlarge the house to accommodate his collection of books, pictures, furniture, tapestries, clocks and objets d'art, adding a library wing, also designed by Sidney Parvin, in 1937, a hall and staircase in 1939, and then in 1956 a picture gallery designed by Sir Albert Richardson.As well as the alterations to the house, Broughton laid out gardens and planted avenues of trees in the parkland surrounding the house.He acquired statues and ornaments for the gardens.