NextDC is working to raise at least $70 million through an unsecured notes offering to fund the build of a second data centre in Brisbane.

The data centre operator's current Brisbane facility, B1, is at 90 percent utilisation, the company said yesterday. The facility was opened in 2011.
NextDC in August revealed it was assessing the potential for a second Brisbane facility to accompany B1, which was then at 79 percent utilisation.
It also said at the time a second data centre for Melbourne could be on the cards, given its existing M1 facility was at more than 76 percent utilisation.
It said it would make a decision on a second Melbourne facility next year.
NextDC is planning for its second Brisbane data centre, B2, to have an initial 1MW capacity. It expects the facility will cost between $65 million and $75 million to get up and running, covering the build and land.
The go-ahead for the second Brisbane facility will be dependent on NextDC raising enough funds to cover the build.
NextDC has data centres each in Sydney, Melbourne, Brisbane, Perth and Canberra.
It is expecting revenue of between $85 million and $90 million for fiscal 2016, and EBITDA of between $25 million and $28 million.