Mrs Dippie said the project was about rejuvenating the central city.
She said marketing the artwork as an art trail would be a smart move for businesses because it could draw people into the city.
City Centre Action Group project team member Anne Pankhurst said the project would make the city look "vibrant and alive". The murals had already become part of the fabric of the city.
Annie Hill, communications manager for Priority One, said the art trail would become an attraction and would help bring people into the city.
She said Mr Dippie had a "very significant national and international reputation" and was a very sought after artist.
"I know people have asked Creative Tauranga and Tourism Bay of Plenty for maps of his artwork and there's only a few up around the city."