Family language policy (FLP) focusses on how languages are dealt with within the home; typically how languages are used and how they are maintained or promoted by family members. The present study investigates families living in the UK, where one parent is a native English speaker, and the other a native speaker of another language, the minority language. By use of a mixed-methods design, utilising questionnaires, interviews and logs, this paper answers the questions: what are the reported language practices of children and parents in bi- or multilingual families, what ideologies about FLP do parents in these families possess and what strategies do families reportedly employ in their homes. Through a nexus analysis approach, the paper establishes connections between the historical bodies, the interaction orders and the DIP of the families in order to account for their language behaviours in the home. The nexus analysis suggests that although parents show positive attitudes towards minority language use, it is the macro-level societal factors that are most powerful in determining language use within the home. That is, space plays an important role in choice of language practices. This finding suggests that children need more minority language exposure outside the home, therefore this paper suggests that the UK government could promote and encourage minority language maintenance through the implementation of language policy.