Ports of Auckland says it is studying a high court ruling that consents to extend Bledisloe Wharf were unlawful, bringing work on the controversial development to a halt.
The court said the process of issuing the consents was flawed, as they were split apart, instead of being bundled together.
It said if the consents had been considered together, the potential impact of the work was ''more than minor'' and should have been put out for public consultation.
The ports company said it had now stopped all work on the wharf where several new piles had already been put in, and is taking time to look at the court ruling to assess its implications.
The chairperson of Urban Auckland, which aims to protect the city's built environment and waterfront, Julie Stout said the group was "delighted" at the result.