With only a small amount of money left to be raised for his fifth downtown mural, he would start painting this month. Mr Dippie would work from the same crane that was being used to paint Harrington House.
Twelve to 15 murals were planned to eventually make up the project called "Larger Than Life - Owen Dippie".
Ms Pankhurst said they had permission from building owners for another five murals and were fundraising for a further three.
"They are already becoming a bit of a tourist attraction. People are walking around the city and looking at them," she said.
The action group was grateful the project was being made affordable by Mr Dippie not charging anywhere near his usual market rate.
"The whole project is about people feeling good. The public is really enjoying this project and getting behind it."
Not all the murals would be based on Renaissance and classical themes, with Mr Dippie expected to move into story themes that related to the area and his own material.
Mr Dippie and partner Erin recently returned from New York where they were married.
Mrs Dippie said Owen loved a challenge and the bigger the wall the better. The mural on the side of Harrington House would be the biggest so far.
She said Owen was getting great feedback on the work he had done so far and a recent magazine article in which he revealed his face for the first time to a media photographer had created a lot of interest and brought in work from across New Zealand.
Mr Dippie described the way he worked as "painting at the push of a button".
