Save the Welsh Heritage (SWH) is a pressure group founded to raise the profile of local land development issues. It is particularly concerned with the conservation of buildings of architectural and historic importance and is prepared to seek judicial review of planning decisions if necessary. A developer has, within the past seven days granted planning permission to demolish a grade II listed chapel at Mynydd Fach. This is an important site because Owain Gryfydd, the radical evangelical pastor, preached his famous and influential sermons there between 1835 and 1840. SWH believes that the grant of planning permission was ultra vires since the planning authority, contrary to statute, failed to have regard to the development plan for the area. Advise SWH on whether it has locus standi to seek judicial review of the grant of planning permission.