The revocation of the regional tier of planning by the UK Coalition Government in 2010 removed the established framework of strategic planning in England. Using a case study of green infrastructure (GI), this paper examines whether revocation has negatively impacted the development of environmental, and specifically GI policies and practice. It questions if changing government policy narratives have hindered advocacy and subsequently the delivery of GI and the extent to which it has been able to position itself as a mainstream approach in planning. Using the development of the RSS in England, and the North-East and East of England sub-regional GI strategies (areas of significant policy development), as case studies, the paper presents an ex-ante evaluation prior to revocation of the evolution of GI policy at a regional scale, alongside an ex-post assessment (2011–2015) of its continued growth within sub-regional policies. The paper concludes that whilst RSSs provided a promotional forum, that revocation has not negatively impacted upon GI development, as its advocates have facilitated a supportive policy-implementation environment which has led to the development of more integrated approaches in planning praxis. [ABSTRACT FROM AUTHOR]