Mr Hewett told the meeting that the council had met its requirement for 1000 Special Housing Area sections by land already approved by the Government.
He highlighted the near-misses caused by poor visibility from traffic heading down Ohauiti Rd when residents left Adler Drive. There was enough concern about the intersection now, without adding another 360 vehicles to their street, he said.
Mr Hewett said a lot of heavy traffic used the road and vehicles going downhill were travelling well above the 70km/h speed limit.
The new development would also substantially boost the number of Adler Estate children that crossed Ohauiti Rd to catch school buses.
Mr Grace said residents were concerned about the safety of children stepping out from behind parked cars when up to 1800 extra vehicle movements a day would be generated by the development.