The DREAM-group produduces a project in housing economics, which provides a projection of future housing demand in Denmark for the period until 2050. The project requires fundamental information on the housing market in Denmark that is brought up to date. This survey describes the occupied housing stock in Denmark in the period 2000-11 and the movement patterns of occupants in 2000-10. Accordingly, a main objective is to identify weaknesses in data that may be relevant to the project.