The Covid-19 pandemic necessitated a shift to a predominantly online mode of clinical supervision for trainees in the talking therapies. Although initially a crisis measure, the online provision of training supervision has continued. However, the implications of this shift in pedagogical practice are yet to be adequately considered. We propose that one implication has been the emergence of a new professional milieu, formed through an amalgamation of the etiquette of the consulting room and the more casual online environment. We term this milieu ‘professional practice in personal spaces.’ Anecdotal evidence points to a range of dilemmas that can arise for supervisors when working in this space, with a current absence of guidance on best practice. This reflective piece seeks to raise awareness of a little understood milieu. In doing so, the aim is to promote discussion and debate, foster approaches to theorisation and ultimately contribute to the development of professional body guidance. In the service of this aim, the reflective piece concludes with some recommendations concerning the training of supervisors and trainees, supervision contracting and an engagement with training courses and professional bodies.