The Town and Country Planning (General Permitted Development) Order 1995

A.2    Interpretation of Class A

For the purposes of Class A—

“amusement park” means an enclosed area of open land, or any part of a seaside pier, which is principally used (other than by way of a temporary use) as a funfair or otherwise for the purposes of providing public entertainment by means of mechanical amusements and side-shows; but, where part only of an enclosed area is commonly so used as a funfair or for such public entertainment, only the part so used shall be regarded as an amusement park; and

“booths or stalls” includes buildings or structures similar to booths or stalls.