The Auckland Council is to review the long-term role of the port company, which it owns, before deciding whether it should expand.
The decision came as about 100 harbourside residents turned out on Tuesday to oppose any further reclamation by the port.
Ports of Auckland has a long-held desire to extend its Bledisloe Container Terminal more than 200 metres into the Waitemata Harbour.
The company has not yet sought resource consents for the reclamation, but said in January that move might come later this year.
Several councillors have spoken against further port expansion, but agreed there should first be a full review of Ports of Auckland's future, and the development of ports in Northland and Tauranga.
Margot McRae, a spokesperson for residents in Devonport, is disappointed that the council did not rule out expansion altogether, but says now they at least understand public opposition.