Jointly with British Gypsum, Stephenson Halliday prepared and submitted a review scheme application for Birkshead Mine.

This scheme was required as part of the periodic review of the mine required under the Environment Act 1995. The application site is more than 1000 ha. The application included a detailed supporting statement prepared jointly by Stephenson Halliday and British Gypsum, a suite of development plans and suggested updated planning conditions.