The bank hosted its Tiaho Mai exhibition for Matariki last month, the sixth exhibition held there.
Something similar could happen in Whanganui, Tait said.
"If there's a group they could definitely approach us about use of the space."
Kiwibank had been sharing premises with NZ Post.
In Whanganui they were in one of Victoria Ave's main shopping blocks.
When the two separated central Whanganui's postal business moved to Paper Plus in the Trafalgar Square shopping centre in October 2019.
Kiwibank's property team decided to keep the leased building in Victoria Ave.
Kiwibank Whanganui offers a full stand-alone service, Tait said, with a lender and mobile mortgage manager, and it has no plans to leave town.
Its hours reduced recently, to close at 3.30pm rather than 4.30pm from Monday to Friday.
Several banks have reduced their opening hours. For Whanganui's ASB, ANZ and BNZ its still 9am to 4.30pm on weekdays - but The Co-operative Bank opens 10am to 3pm and Westpac opens 9.30am to 3pm.