After the death of Jon Hall in 1802, the House went to his son John Hall Junior. The son lost the family's trading business due to the recession during the Napoleonic wars and the family sold Gunnebo and all furnishings. The last private owner, baroness Hilda Sparre, died in 1948. The 18th century interior was recreated in the 1950s, when Mölndal Municipality bought the estate. Several original furniture have been brought back to Gunnebo during the 20th century. Today the House is a museum and a recreated 18th century home.