This document provides a theme review for the Severn Estuary Shoreline Management Plan Review (SMP2). It identifies and evaluates key natural, historic, and land use features along the shoreline. The review includes summaries of relevant policies and legislation, assessments of landscape and nature conservation designations, the historic environment, and current and future land uses. It then provides more detailed summaries of these themes for 16 specific areas along the shoreline to inform the development of objectives and policy options for the SMP2.