"The general outcome is that we will be open late on Fridays during daylight saving, then winter trading which will see an extension of Saturday hours - which works in with winter sports."
The group would apply for road closures on the third Friday of the month for live entertainment.
"We'll provide a forum where young talent can get a start. There's plenty of bands who are talented but have nowhere to showcase their work."
Dozens of shops were displaying posters supporting the campaign. Ms Mitchell was encouraging people to use the hashtag #KeepWhangareiOpen on social media to show their support and put forth ideas for CBD revitalisation.
"There's so much apathy in town it's hard to cut through that," she said. "We really do need the public to get in behind this if they want it to take off."
Retailers were enthusiastic about the idea.
"Because it's pre-Christmas people are willing to try it out. The reluctance is less than it would be at another time of year," Ms Mitchell said.
Councillor Cherry Hermon said it was "fantastic" to see businesspeople taking ownership.
"It's great to see initiatives like this coming from the public who want to step forward and enliven things.
"I think fantastic, good for them."