The Co-operative Housing Federation of Norway (NBBL) is a national membership association representing 57 co-operative housing associations. 9.100 affiliated housing co-operatives counting 407.000 housing units are managed by the member associations. These associations, their 800,000 members, the housing cooperatives and NBBL make up the Norwegian Co-operative Housing Movement. This makes NBBL the fourth largest membership movement in the country.

The vision of the Norwegian Co-operative Housing Movement is to offer its members the opportunity to acquire a decent home in a sustainable living environment. NBBL believes in the ethical values of honesty, openness, social responsibility and caring for others, thus adhering to the co-operative principles stated in the International Co-operative Alliance (ICA).