Josh Heins and his partner moved into a tiny house to save money.

Now it could cost them a small fortune in legal fees as they fight council eviction orders.

The NSW couple were ordered to remove or demolish their home by Bega Valley Shire Council, which deemed it an 'unauthorised structure'.

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Failure to do so could cost them up to $1 million in fines.

But Heins argues their tiny house on wheels (THOW) falls under vehicle regulations, not building rules.

Now the matter has been escalated to the Land and Environment Court of NSW, where Heins has been told even "simple" case can cost up to $25,000 to resolve.

"We've had to divert all of our energy to this thing that just honestly feels like a waste of time," Heins told 9news.com.au.

"To be completely honest, it's a shit show."

And with no clear rules around how tiny houses fit into the Australia's national, state or local regulations, he fears other vulnerable Aussies could be left homeless.

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