A spokesperson for a community group opposed to a Special Housing Area in south Auckland says the group will keep fighting the development.
Fletcher Residential is proposing to build up to 480 houses over 33 hectares next to the Otuataua Stonefields Historic Reserve in Ihumatao, Mangere.
The group Save Our Unique Landscape said the rural land needed to be protected due to its cultural and environmental significance.
The Auckland Council has voted against a motion to revoke the Special Housing Area.
But a spokesperson for the group, Waimarie McFarland, said it had other plans to stop the development going ahead, such as taking the issue to the Waitangi Tribunal, and an application to deem the site a world heritage site.