To ask the Secretary of State for Communities and Local Government what guidance her Department has provided to local authorities on whether under the terms of the General Permitted Development Order the measurement of the extended part of the dwelling house beyond the original dwelling house is taken from wall to wall or roof to roof. (274166)

The Government have not specified in the Town and Country Planning (General Permitted) Development Order, 1995, as amended, whether the measurement of the extended part of the dwelling house beyond the original dwelling house should be taken from wall-to-wall or roof-to-roof. Nor have they issued guidance on this issue to local planning authorities. Interpretation of the order is a matter for local authorities and ultimately for the courts.