The couple had returned to the farm where Hutton grew up two years ago, after travelling overseas. Taylor grew up nearby at Five Forks.
During the first Covid-19 Level 4 lockdown, they decided to tidy the shed up, she said.
"We didn't have the idea of making it into a venue straight away. Then, we just cleaned everything out, and James wanted it to be a workshop, but he couldn't fit his trucks in.
"So then we were like, OK, it's quite a cool venue. There's nothing really similar around here. It's not Oamaru stone either, which makes it a little bit different."
They named the barn after the highest peak on the farm and began the process of applying for resource consents - which had proven to be the biggest challenge so far.
"It wasn't hard. It was just a long process ... because we hadn't done any of this before, we didn't know what was next."
They were now in the process of exploring how to make the building structurally sound, and coming up with a design that left the outside structure intact, but would cater for more people inside, and possibly incorporate some toilets.
"Once structurally sound, that allows us to hold functions inside, and that opens up a new avenue, obviously," Taylor said.
The first wedding ceremony took place on the grounds earlier in the month.
The barn had also been used for friends' wedding photos, and a 125-year celebration was held there with family at the end of 2020.
A marquee could easily be set up on the grounds and the pair were "on-hand" to help with anything required.
"It depends what the couple wants, really ... We can leave if they want us to leave," Hutton said.
Taylor is a teacher at Glenavy School, while Hutton works on the farm, and they were planning to run the venue around their full-time jobs.
They had not done any advertising yet but anticipated being quite busy once everything was ready to go.