The trend of more renters in Auckland is to continue into the middle of the century, with an Auckland Council analysis tipping three out of 10 households will not afford a $400,000 house by 2051.
The council suggests that if 450,000 future households were formed by 2051, only three out of 10 could afford a house over $400,000.
New council figures also show that about 32,000 households - 19,000 paying off a mortgage and 12,000 paying rent - are forking out more than 30 per cent of their gross income if they earn between $50,000 and $70,000.
The urgency to claw down housing costs for low- to moderate-income households is spelled out in the council's draft response to findings by the Productivity Commission on housing affordability.
The commission wants the council to reconsider its plan to squeeze 75 per cent of the city's housing growth in the next three decades within existing boundaries.