A NSW building company says it is on the brink of collapse after failing to pay a court-ordered refund to a customer and the regulator seeking to have it struck off the business register.

The sole director of the company has notified a court of plans to place the business into liquidation, though it has yet to go under.

Inventive Building Pty Ltd, which according to ASIC trades under the name Panelup, is a Wollongong-based business on the NSW south coast that specialises in off-site manufacturing for add-ons to existing houses.

That includes making modular granny flats and second storey additions for prospective customers.

At time of writing, its website was no longer working but its social media accounts are still live.

John Liou claims his experience with the building firm has been nothing short of a nightmare and now he is waiting for the business to either go into liquidation or pay him back his money.

Mr Liou, from sydney, was looking to put a granny flat in his backyard so he could move in his 75-year-old mother with health conditions to take better care of her, and engaged Inventive Building.

“They kept saying it will be ready in six weeks. They never did anything,” Mr Liou, 50, lamented to news.com.au.

Mr Liou…