Major parts of the farmland belonging to the manor was sold and built up through the end of the 19th century as the city expanded, but around one square kilometer remained when the city of Oslo bought the property in 1896 to secure space for further urban development and a new cemetery. The last private owner, Gerhard Gade, retained the right to inhabit the house until his death in 1909. This spared the house from demolition, and an economic recession prevented further building on the land.