Purpose Collaboration and psychological safety are key factors to effective teams. LEGO® SERIOUS PLAY® (LSP) has emerged over the past decade as a development tool used in both educational and workplace settings for a range of purposes. In this study, the authors sought to investigate the impact of the experience of participating in a LSP away-day on the collaboration and psychological safety of the participants. Design/methodology/approach In this study the subjective experience of participants of LSP workshop awaydays using a coaching approach were examined through interpretative phenomenological analysis. Members of two teams were invited to participate in team awaydays and approximately six weeks later, they were invited to share their reflections on the experience and its impact on team relationships and team performance. Findings The interviews revealed that participants' felt experience of engaging with LSP was positive, created closer bonds within the team and a better understanding of each other and the challenges which the team were facing. Participants reported a tangible change in the way they are collaborating and engaging not only just with fellow participants but also with other colleagues. Originality/value The experience of the participants in this study supports the view that LSP can have a positive role to play in developing psychological safety and collaboration in organisational teams and that there was a lasting impact on group norms which was sustained after the event.