Hi Scotland is different to rest of UK so I'm not familiar but tryhttp://www.scotland.gov.uk/Topics/Built ... eholderPDR
and click on the "dwellings house" tag on the left side.
If you get into the 'shed' from the house then it may be classified as an extension even though it looks like a shed. You'd have to see how your circumstances relate to the permitted development for extensions and sheds, etc.
Like a fish ever needed a bicycle anyway...MTB: '89 MF Alu Team Pro,'88 Muddy Fox Courier,, '92 Orange Elite (now 17"!), '04 Kona Fire Mountain (now Son's), '96 Muddy Fox Ranger home-build (son's), Specialized RockHopper '92 (Ad's retro-build) ,'02 Kona Scrap Special Edition OB (3rd Son's), 1989 Orange Clockwork (Gone!?)
ROAD 2013 Orange CarbO ,2012 Basso Devil (3rd son's), Colnago CLX3.0 Di2 self-build