A father and son spent six years building a £175,000 boat - before finding it was too big to get out of their garden.
John Couzens and his son Dan, 26, constructed the eight-tonne boat in the garden but finally realised it was too large to move.
In the end, they had to hire a giant crane to hoist it over the top of their house.
According to the Mirror, John said: "There was a moment when I thought - this could all go horribly wrong.
"It was so ridiculous watching it appear over the top of the house.
"But it was an incredible moment as well."
John said they started building the boat when Dan was looking for a project, and a colleague suggested they build a boat.
The two roofing colleagues then set about looking at boat manufacturers, heading to Cornwall, where they discovered the Evolution 38i hull.
They spent two months making a boat outhouse to work in, and worked weekends and evenings to create a 45ft-long, 18ft-wide, 25ft-high shelter.
Speaking to the Daily Telegraph, John said: "Dan's workmanship is amazing.
"He would be up for breakfast at 7.30am, start work at 8, have a tea break at 10, lunch at 12, another tea break at 3 and then finish for dinner at 5.
"Everything is designed so intricately and there are so many features that are completely his design. It's a work of art."
The boat is now in Ramsgate Harbour and will undergo safety checks before setting sail.
John added: The next big moment for us as a family will be getting it out to sea.
"You can sleep on it, eat on it and live on it, so hopefully we can have some wonderful times on it.
"I'm incredibly proud of Dan for his unwavering dedication to the project, it's been an amazing journey."