The Log Cabin Store
by Stable Structures
There are some general rules regarding whether a building needs a planning application or not, however these general rules presume that you do not live in a Conservation area or there are no existing Covenants on the land or main dwelling..
You do not need planning in the following cases:
Please access the following link for further details on Planning guide lines.
http://www.planningportal.gov.uk/england/genpub/en/1106655490418.html
It is always down to the individual to check the planning laws with their own local council because the rules can change with some councils.