Confirmation of the importance of obtaining planning permission and consulting local planning officers when building your garden office comes via a report in Edinburgh Live.
Earlier this week West Lothian Council's development management committee was called to deliberate on the case involving Megan Archibald's garden office shed in Eliburn because the decking underneath the build had raised it 40cm above the permitted height which according to the report meant it had become "dominating" and "domineering".
Megan has been using the garden office to work in after lockdown meant she could no longer attend Edinburgh University where she was working on her Master of Fine Art degree. It is vital for her work and she is now seeking retrospective planning permission.
Happily, it appears that the council- which was unable to make a site visit during construction because of coronavirus restrictions - is happy to discuss alternatives to forcing her to take it down.
A good port of first call for official UK information is the Planning Portal.