BACKGROUND AND PURPOSE: Stroke survivors with type 2 diabetes mellitus (DM) face heightened cardiovascular risks, which are exacerbated by sedentary behaviour (SB). Despite existing interventions, there remains a gap in the literature regarding effective strategies to reduce SB and increase physical activity (PA). The purpose of this study was to explore the feasibility and safety of the 12-week 'Everyday Life is Rehabilitation' (ELiR) intervention comprising recruitment, adherence, practicality, and implementation into everyday life. METHODS: Single-group longitudinal intervention study with 1-week baseline, motivational interviews at weeks 1 and 6, and 12-week follow-up. Stroke survivors with DM (N = 14) were recruited from Neurovascular Center at Zealand University Hospital, Roskilde. The ELiR intervention is a theory-based intervention that focuses on healthcare professionals (HCP) consultations with stroke survivors with DM to address SB and PA. Primary outcomes were recruitment, adherence, completion of physical tests (accelerometer measurements), cognitive tests, and safety. Secondary outcomes were sedentary time and steps collected using an accelerometer and glycated haemoglobin (HbA1c) measurements. RESULTS: 23 participants were recruited, of whom two were readmitted, one withdrew consent before the baseline test, and six were not discharged with a physiotherapy rehabilitation plan within 1-7 hospitalisation days. The remaining 14 were included and completed the study with a median modified Rankin scale (mRS) score of 1. The ELiR intervention revealed high adherence. Three participants experienced falls, and two were hospitalised. These incidents were not related to the intervention. Future adjustments include modified inclusion criteria, SMS-reminders, and point-of-care HbA1c measurements. DISCUSSION: The ELiR intervention was feasible and safe. Falls and serious adverse events are in line with previously reported risks. Self-reported questionnaires and clinical tests had low and moderate adherence, whereas accelerometers had high adherence. However, the small sample size limits generalisability, and adjustments to the ELiR intervention are suggested to improve usability in physiotherapy practice before testing in RCT studies to confirm these findings.