Originally Posted by Brian McIlmoyle
Check local building ordinances at to the maximum size you can build a structure without requiring a permit. I think it is something like 10 x 12 or so.
If you look at Flag Raiders.. you will find that most of the structures are that size or less and so classified as "temporary structures"
The Drug lab of course required a building permit and proper foundation construction to meet code due to its size.
If you want to build anything bigger than 10 sqm, then you need a permit. I'll double check the sqm when I get home but i'm pretty sure thats what it is.
Also anything that has a kind of platform more than 2ft above the ground requires a building permit as well.
For outdoor, if its just the cornered structures, or just small things that don't really resemble a shed or a house you should be fine without a permit.