In this thesis, I investigate the co-production of “place” and “need” in voluntary sector mental health care, in order to re-think and breathe new life into the problem of access to services. The research draws on ethnographic fieldwork from 2016-2018 at three psychotherapy centres providing different specialised services in London. I describe how, in these places, the visibility of the “vulnerable migrant” client group, and notions of culturally specific need, reflects a global—but perhaps temporary— “turn” to migration. I attend to the everyday practices of care providers working to “fill gaps” in mainstream service provision, and tell fragments of client stories about moments of access at each site. Drawing on data generated from interviews, observations and a creative method, I describe practices around the sociomaterial thresholds and doors to each service: waiting, accessing, assessing, gate keeping, and including or excluding. Part One, on “Place,” makes visible a paradox, whereby the work to create and maintain inclusive places for people who may not “belong” elsewhere in the mental health system, (re)produces the precarity of both people and places, positioned “always almost on the outside.” Part Two, on “Need,” extends this inquiry into boundary work and precarity, showing how working against mainstream classifications of need created possibilities but came at a cost. To produce eligibility and access to care, providers made mental health need legible through laborious negotiation between funders, their internal values and interests, and wider matters of concern. The ordering of these two parts builds the argument, grounded in theories of relationality and milieu, that places are not merely inert “context” but are generative of certain forms of need. The chapters in this thesis move away from seeing care providers as “solutions” to “unmet need,” opening up new problem spaces around the practice of doing need differently.