New Zealand's median house price has returned to its record high of $NZ400,000 ($A356,077), with gains in both Auckland and Canterbury.

The median sale price rose $NZ10,000 to $NZ400,000 in September, according to the Real Estate Institute of New Zealand, equalling the record reached in March. The number of houses sold last month before restrictions on low-deposit loans (LVRs) kicked in was 6,720, up 2.6 per cent from August and up…