The unit (1) has a landing door (11) for giving access to a main part (10) e.g. bedroom. Another landing door (21) is utilized for giving access to an annex portion (20) e.g. toilet (26), comprising a chamber (22). A communication unit is provided between the main part and the annex portion to allow a person between the main part and the annex portion. A sink (14) and a space (15) are located in the main part and are utilized for receiving a cooking unit e.g. oven. The communication unit includes an opening (40) for passage of the person.
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