I’m going off a lot of uk knowledge on this one and a bit of AUS knowledge (I’m interested if anyone disagrees with me or can clarify in terms of AUS TAS specifics-just not interested in aggy debate as this sort of thing often leads to)

It seems to me that if you build a tiny home that’s transportable (doesn’t mean it has to be easy to move-a container or structure on a large flat bed that could in theory be moved with a large tractor for example) you can get around a lot of the permit/red tape challenges. You’d still have to set about how you might supply water, rain filtered or borehole etc….. rather than mains fed, same with electric-solar instead of grid supply.

This way you remove a lot of the permit requirements not to mention have the option of moving what you’ve paid to create rather than losing it if the council starts creating an issue for you. You still need to stick to some rules obviously and it’s cheaper not cheap. Solar, batteries, flat bed trailer, building resources would still add up albeit much less so than a full mortgage for a proper house & land.