§ Mr. Mitchisonasked the Minister of Town and Country Planning whether the concession as regards single plot owners who bought before 7th January, 1947, 188W Department, Leatherhead Road, Chessington, Surrey, and should give the series and sheet numbers concerned and the map reference of the points at fault.
The revision of any particular map must be made as part of the Ordnance Survey's general plan of revision and, in order to maintain the standard of accuracy, revision must be made on the basis of a survey on the ground by the staff of the Ordnance Survey. Local authorities are always informed by the Ordnance Survey before a revision or survey of their area is begun, and no advantage would be gained by issuing a general invitation to them to submit information before that date.