No offence, but i think you're reading that wrong. For construction of a resi premises or just not allowed to be used for habitable purposes?
You've missed the entire intent behind the policy (ies).
Clearly states that planning approval required. Pretty standard fare.
A Sea Container can't be used for habitable purposes - sure, but a sea container isn't a sea container when fitted out, is it? A sea container isn't a sea container when it's insulated and clad - it's now a structure.
We're doing a sea container apartment block in Midland. It's only a 3x apartment site, but it's industrial and edgy and the council love it.
That's not how the City Of Joondalup see it. I spoke with a building inspector who advised you cannot use a sea container even if it is insulated and clad.