The centre was an important piece of infrastructure to attract high-value visitors and was "pretty crucial both from Auckland and the country's perspective".
Mr Joyce has long touted the economic benefits that hosting large international conventions would bring and also the short- to medium-term jobs boost provided by its construction.
However, he also said it would fire up other projects nearby.
"You will see more development occurring around the convention centre location."
Mr Joyce said the centre and casino complex was tipped to act as "a link between the city and down towards the Victoria quarter as well".
"There's been quite a bit of talk about how to make that part of the city, effectively between Hobson St and down to the Victoria quarter, more friendly to people and it will probably take something like a convention to provide that link."
Developers waiting for the deal to be finalised would "obviously be interested in how they can leverage land around the complex to actually get more hotel beds in the vicinity".
Auckland Tourism, Events and Economic Development chief executive Brett O'Riley said the centre, combined with the City Rail Link, "will really stimulate quite a transformation of the central city".
The extra visitors the centre will attract would stimulate demand for other tourist attractions.
"We already know of several projects that have been on hold pending the final announcement of the convention centre. Suddenly if you're a museum, theme park or an art gallery, the prospect of those sorts of visitors can change the game."
Through a spokesman, Auckland Mayor Len Brown last night said he welcomed the "significant opportunities that a national convention centre will bring to Auckland both in terms of jobs and wider economic growth".
SkyCity chief executive Nigel Morrison said the centre would be one of the biggest construction projects in the Auckland region, "and will be a major boost for the construction sector during the estimated three-year construction period" requiring 1000 jobs during construction.
When fully operational in 2017 and drawing more high-value events and tourists to the city, "it will result in SkyCity employing an additional 800 workers, on top of the 3500 we already employ in Auckland".
The Government will introduce the necessary amendments to the Gambling Act to Parliament this week when it will release documents relating to the deal including information about the social cost of the gambling concessions and a 35-licence extension.