Testing.. will a shorter reply work? Apparently..now lets see if my original reply can be added..
Do you have farm status?
Per the RDN(Nanaimo area) website:
'Farm Buildings on
land designated for agricultural use and with farm status under the Assessment Act (note: farm buildings must comply with the requirements of the National Farm Building Code and the applicable zoning regulations [e.g., setbacks] for the property)'
In practice, I think this is the norm on the island and perhaps the province.. though maybe not vancouver area? And, nobody is in charge of enforcing the national farm building code around here. So, foundation or not, it can be as big as it needs to be, if you have farm status..
If no farm status and skiddable... grey area. On wheels you are safe. On skids I think mostly 'they' might try and enforce the need for permits over 10M max footprint same as fixed structures..