With shopping mall developer Westfield and The Warehouse Group, it is promoting a hierarchy where "regionally significant" views of maunga would be spared "significant modification" but views of local significance would be harder to retain.
Expert witnesses for several submitters have called for a comprehensive review of the viewshaft rules.
They claim these encourage sprawl and threaten the level of intensification needed to achieve a compact city.
Housing Minister Nick Smith says the fate of the viewshafts rests with the Unitary Plan hearings panel. But he says the Government made it "very clear" in earlier submissions that the proposed plan provided insufficient housing capacity to meet population projections.
"Auckland needs to make better provisions for growth, whether it is up or out, and the worst outcome for housing affordability is that neither is provided for adequately."