Earthquake strengthening at the building is complete and construction work is well under way.
"It's so exciting that our unique, much-loved part of our city's heritage is about to come to life again. We can't wait to open it for the community to enjoy," Hastings mayor Sandra Hazlehurst said.
The Municipal Building will boast plenty of bells and whistles when it reopens, including a restored Shakespeare Room and Assembly Ballroom and new hospitality venues.
It will also include the new Hastings Information and Ticketing Centre, which is being shifted from its current location on the corner of Russell St and Heretaunga St East.