Precinct Properties New Zealand says its high profile Commercial Bay development being built by Fletcher Building will now take even longer and cost more.
The total cost for the redevelopment of the former Downtown shopping centre at the bottom of Auckland's Queen Street will now be $690-to-$700 million, versus its February forecast of $690 million.
It now expects the retail centre to be completed in March 2020 and the PwC office tower to be done in April 2020.
In February it said there was "minor slippage" of about a month to the construction programme "which may impact previously disclosed completion dates of September 2019 for retail and December 2019 for office."
Chief executive Scott Pritchard said "as previously stated, the last two months have been critical in progressing the project, and it is unfortunate to have to confirm that we have observed further slippage beyond what we observed earlier this year".