ABSTRACT
A system of comprehensive control over all development was introduced by the TCPA 1947, which required that all building development and any material changes in the use of a building and of land would, henceforth, require planning permission, to be issued by the local planning authority. The legislation established just what would or would not require planning permission. Since 1947 all town planning legislation has provided a definition of “development”. To understand the workings of the system it is necessary to understand just what falls within the provisions of the definition of development to establish what does and does not require planning permission.
