The conditional Datacom deal sees the sale of the yet-to-be-built block on the corner of Gaunt and Daldy Streets behind the Caltex service station on Fanshawe St.
Singapore's government has spent more than $1.2 billion on New Zealand real estate in the last year, splurging on malls throughout the country as well as some of the flashest new office blocks, particularly around the rapidly evolving Wynyard Quarter on Auckland's waterfront.
The Singaporeans are coming here because they perceive New Zealand to be one of the best places internationally to invest.
GIC has holdings in around 40 countries and is one of the world's richest investment funds.
The Datacom building won't be finished until April 2017 and site works have only just begun.
Those close to the deal said the Singaporeans were attracted to the yields here as well as working closely with parties they trusted.
This latest deal follows others for GIC to buy other big holdings from Goodman.
GIC, with over US$100 billion of assets under management, bought 49 per cent of the Viaduct Quarter last year. That comprises Air New Zealand House, the new Fonterra development now being built by Fletcher Construction and the Viaduct Corporate Centre, containing the Vodafone, KPMG and Microsoft/HP buildings.
This latest Datacom deal follows on from those transactions.
The Singaporeans also now have big retail holdings.
In November 2014, Scentre Group - which owns and manages New Zealand's biggest shopping mall chain branded Westfield - announced a $2.1 billion joint venture with GIC for five shopping centres in New Zealand, three of which have developments planned