Industries have to adapt to changes in external environment. This adaption includes the development of new professional roles that challenge established structures, roles and communities of practice. In order to better understand the unfolding of construction project practice in an increasingly changeful world new professional roles are explored as liminal roles. The studied professional roles are partnering manager, building logistic specialist and BIM coordinator. Liminality is used as framework to understand descriptions of liminal experiences when negotiating boundary interfaces in construction project practice. Findings are both theoretical and practical and suggest that new professional roles practice multi-liminal work and acknowledge tensions that pose challenges for liminal roles to act as change agents.