"Parking in Waipu is a huge issue," Mrs Roberts said.
"We have so many trucks bringing deliveries and it's a health and safety issue. It will be great for Waipu to get all that heavy traffic out the way."
Most Waipu residents grocery-shopped at Ruakaka or travelled to Whangarei, so the supermarket was another benefit, Mrs Roberts said.
She said last year she turned away "about two dozen really good people" seeking work. She estimated the complex would create at least 50 jobs.
"I'm just thinking in our business alone, we are looking at doubling the size ... And eventually we'll be four times the size, because we're doing it as a staged development."
Whangarei District Council has recently signed off a 72-lot subdivision, also on Nova Scotia Drive.
Mrs Roberts said she was initially disappointed that her development needed a publicly notified resource consent.
"There's so many people moving into our community ... Council should be really encouraging people to build developments and provide housing and jobs for people. "
Submissions can be made at wdc.govt.nz/YourCouncil/PublicConsultations.