"Taking the development charges cost off the developers will only make the ratepayers pay and we say that's not right."
The council planned to recover $2 billion of growth investment from development contributions over the next 10 years, she said.
This would come from the 100,000 residential homes and 5 million square metres of non-residential development expected to come to Auckland in that time.
Without the charges, ratepayers would pick up the $850 million of interest on what the council would otherwise have to borrow.
Mrs Hulse said that over the past eight years, development contribution charges in Auckland had fallen by 10 per cent against increases in the median house price of 50 per cent.
House materials were up 30 per cent and land costs had risen up to 36 per cent. Developer profit would be well above 16 per cent when a modest subdivision cost was added.
The council also fears proposed changes to the Resource Management Act will free a greater proportion of developers from the need to get resource consents and therefore skip the levy.
Mrs Hulse said the council had worked through a development contributions plan with developers and she was comfortable that a fair and equitable level had been struck.