[1] The estate is now owned by The State of Norway and is an official national monument, as well as a museum.
The building was first constructed in 1770[2] with a total floor area of over 2000 square metres.
Carsten Anker went bankrupt in 1822 and the ownership of the estate was transferred to various British creditors in 1823.
A group of private citizens led by Henrik Wergeland organized a fundraiser that allowed them to buy the building with the pavilion and surrounding garden (Eidsvollsparken).
[4][5] In 1895, there was a major effort with repairs and maintenance for the 100th anniversary of the signing of the constitution (100 års-jubileet for Grunnloven).