The project started mid-2015 with the removal of the sails covering the area and, in December 2015, the old office building was demolished.
Since then, work to upgrade the pillars has been completed as well as the refurbishment of the carved statues of Hinemoa and Tutanekai.
Councillor and district revitalisation portfolio leader Karen Hunt said the three week delay was a minimum and due to the work being carried out in Edgecumbe could not put a exact date on when the work would start.
"We can't really pressure the contractors as we believe Edgecumbe does take priority.
"Their needs are far more important than ours right now and it's important that community can get back on its feet."
Councillor Charles Sturt said he was still concerned that work would be carried out during the British and Irish Lions rugby tour when the Lions take on the Maori All Blacks in Rotorua on June 17.
He said it would be better to do the work in October or November before the next summer tourism season.
However, Ms Hunt said all precautions were being taken to make sure work did not disrupt businesses in the area and the council would keep the public informed about schedules.
"There's no way we could find a window where there was no significant event happening in the city," she said.
"We are blessed to have so many national and international events coming here, but we are always busy with events so finding a time where nothing was happening was very difficult."
City Focus redevelopment
- Final stage works delayed at least another three weeks
- Hinemoa and Tutanekai Sts to be opened up to through traffic
- Site to be renamed "Manawa"
- Delay caused by contractor taking on emergency work in Edgecumbe