The Otago Regional Council is getting too big for its headquarters in Stafford Street.
The issue was highlighted in a report for councillors to consider at their meeting today.
The council's looking at alternatives, including the reuse of existing heritage properties in the city.
Staff have allocated funding from building reserves towards planning and designing a new space.
The council's wanting about 3000 square metres plus parking room, and an open office area.
It's expecting to vacate the Stafford Street building within three years.