An exhibition space is located in this part of the building as well as a cafe, which will spill out into a courtyard that's become known as a sun trap.
Overall there is 18,000sq m of space over three main levels, plus mezzanine floors.
The upper levels are dedicated to convention and business events.
Tākina commercial development general manager David Perks said the building could accommodate a conference of up to 1600 people, but could also cater for two smaller conferences running at the same time.
The project will protect Wellington from losing out on the business events market as similar developments come online in Christchurch and Auckland.
Perks said Tākina's key point of difference was that it's located in the capital city.
The rest of the world saw New Zealand as a bucket list destination with innovative thinkers, he said.
"A significant part of that thinking is housed in Wellington because of it being the home of Government, but also the home of crown research institutes like Callaghan Innovation and Niwa.
"So that gives us our special place."
The region's culinary scene will also be on full display, with work under way to form partnerships with local suppliers for events.
There are currently more than 70 conferences on the books, 44 of which will take place n the building's first year of operation.
Wellington NZ business events manager Irette Ferreira said so far they have only taken bookings for multi-day events with more than 300 delegates.
"There's almost no availability for the months at the end of next year already."
Festival for the Future was secured last year as Tākina's first major event.