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Net-zero neighbourhoods offer a promising avenue for decarbonisation in the construction sector, yet challenges in stakeholder engagement hinder their broader adoption. This paper investigates the current barriers, enabling factors, the significance of barriers between stakeholder groups, in order to provide suggestions for accelerating the transition could be made. We employ a mixed-method design for this study, incorporating both a systematic literature review using the Systematic Review Reporting Standards (ROSES) methodology and primary data analysis derived from semi-structured interviews. Guided by the conceptual framework of social-technical systems theory, this paper offers a distinct perspective on existing barriers and provides insights into effective strategies for overcoming them. We suggest that net-zero neighbourhoods are niche innovations within the broader socio-technical system, currently in the first phase of socio-technical transition. We uncover that while stakeholders have unique challenges to address, ultimately, interconnection of all system-actors is required to overcome them. The findings of this paper will inform the implementation of net-zero neighbourhoods in the South Wales region and beyond, providing a unique insight into the current stakeholder engagement challenges and how they can be overcome to accelerate socio-technical transition. [ABSTRACT FROM AUTHOR]