LAT-relationships (from Living Apart Together), in which partners retain their own homes although they have a long-term intimate relationship, represent an increasingly acceptable choice among elderly in Sweden. LAT-relationships, unlike marriage or cohabitation, create special conditions that enable an intimate relationship to be combined with autonomy. However, this does not mean that the way in which the balance between autonomy and intimacy is achieved is given. This study examines the home as a resource for women's boundary making, i.e. the process in which boundaries are established around their homes in order to influence their interaction with partners, friends and kin. The study is based on questionnaires to elderly Swedish men and women living in LAT-relationships (n = 116) and on qualitative interviews. There is a broad variety of ways of establishing boundaries in time and space, ranging from having direct control over who has access to one's home to more subtle time-zoning strategies, but all the women studied seem to prioritize the possibility of keeping their various social relations separate from one another.