It is possible some of the details of which - if any - of the four make it through today's gauntlet will be made public before that meeting.
The 20/20 committee met last Thursday to weed out the non-starters, an initial seven ideas then being whittled down to four.
"We compared them against the assessment matrix, with only four meeting all criteria and able to move through to the next stage in the process," committee chairman Phil Halse said. "The calibre of these four proposals was outstanding, and they definitely merit further consideration.
"I'm now looking forward to the second workshop stage when we can examine the successful proposals in greater depth."
The Whangarei council bought the old harbour board/NRC building in 2003 for $2.2 million plus GST, $1 million above valuation. Since then the building has remained empty except for use for events.