"As numerous studies have shown, the family home is a place where many aspects of the self are projected. However, there are a lot of theoretical and methodological difficulties still to be solved in this field of research. Amongst the difficulties, one of the most obvious is the fact that the home is a place shared by a group of people who make up the family unit although, as certain authors have pointed out, there are areas within the home which each member delimits as his/her own territory. One of these spaces is the bedroom of young people who are fortunate enough to have a room to themselves. The ability of youngsters living in these conditions to decorate and be able to benefit from "an apartment within an apartment" permits an empirical study of aspects related to the appropriation of space, both in the manner of perceiving it as a physical place, and in the ways they have of making it their own. The empirical study presented here was carried out with over approximately one hundred university students, whose average age was 20, still living with their family and who had chosen their own bedroom as a representative place. They had to respond to an open-response, self-applied questionnaire and, after describing the place, had to explain why it was representative of them and describe the specific sentiments they experienced in it. An analysis of the content of three levels of response has allowed us to formulate the underlying discussion and to discover the physical dimensions employed for: 1) describing the room - architectonic elements, contents of the room and aesthetic assessment; 2) analysing the resources used for taking over the space through behaviour and decoration; and 3) analysing the sentiments experienced inside the bedroom. These results will provide some keys for interpreting the personal identity projected in the room and the social identity perceived in anyone visiting it, because the elements mentioned are a guide to the type of keys which the students use to express themselves in their bedroom through the decoration. The results also offer information about the behaviour and emotional aspects which encourage attachment to this room."