The adaptation of open-plan officesOffice to employees’ comfort needs is increasingly shaped by social dynamics rather than individual control. While workplace comfortWorkplace comfort is often framed as a response to environmental conditions, this chapter argues that adaptation is a negotiated process shaped by collective norms, organisational culture, and perceived behavioural control. To better account for these dynamics, the chapter introduces Post-Occupancy Adaptations (POA) as a new conceptual framework that highlights the social and behavioural dimensions of comfort adaptation in shared workspaces. POA complements Post-Occupancy EvaluationPost-occupancy evaluation (POE) and Ecological Momentary Assessments (EMAs) by examining how employees navigate social expectations when modifying their environment. Findings from a pilot study in an open-plan office in Brisbane, Australia, are used to illustrate how social conformity strongly influences adaptation behaviours. While adjustments such as lighting modifications are more common due to lower social constraints, thermal and acoustic discomfort is frequently tolerated rather than addressed, reinforcing perceived limitations in agency. Rather than aiming for generalisable results, this chapter uses the pilot study to support the development of Post-Occupancy Adaptation as a workplace comfortWorkplace comfort framework, recognising that adaptation is constrained by both environmental and organisational dynamics and is shaped by social negotiation within shared spaces.