Kreditkassen for Husejere i Kjøbenhavn was the first mortgage credit institution in Denmark, founded by royal resolution on 1 March 1797.
[2] In 1889, Kreditkassen for Husejere i Kjøbenhavn relocated to a building in Ny Vestergade.
A new head office was constructed at the corner of Lavendelstræde and City Hall Square.
After Ambt's death, the construction was completed under the supervision of Georg Juul Brask.
Husejernes Kreditkasse and Byggeriets Realkreditfond (BRF) merged in 1975 to form what is now BRFkredit.