Paragraph 23A F1F2

A detached single-storey building used for shelter or sleeping in connection with recreation. Except- A dwelling. A building having an area exceeding 30 square metres. A building ancillary to another building. A building within 6 metres of a boundary or of another building. Any wastewater disposal system serving a building of this type. A building containing a gallery or galleries unless the gallery, or where there is more than one gallery, the galleries together, occupy an area not more than—

whichever is the lesser.

Interpretation of paragraph 23A

In paragraph 23A, “gallery” means a raised floor or platform which is open to the room or space into which it projects and is not enclosed below.