The number of sales jumped 29.6 per cent to 70 last month - but recorded an 11.4 per cent year-on-year fall.
Last month, 6125 dwellings sold nationwide, down 7.6 per cent on last February.
National median prices rose $33,000 to $415,000 compared to last February and were up $13,000 or 3.2 per cent on January this year.
Reinz chief executive Helen O'Sullivan said it was hard to predict what impact rising interest rates would have on provincial regions, as there was no "rough rule of thumb".
However rising rates combined with the Reserve Bank's recent restrictions on low deposit home loan lending could put a "significant handbrake" on sales as vendors put off selling until they could get a good price, she said.
Rotorua Daily Post Facebook page readers commented yesterday they were getting ready for the interest rates rise.
One person said "Fixed ours to have peace of mind" while another said "I have mine fixed until May and it costs too much to alter at this stage.".
Another didn't believe the rates would rise.
"They have said this several times over the last year or so then everyone goes out and fixes their mortgages ... floating is best!"