The real estate firm, which manages nearly 16,000 properties across the Auckland region, performs rental reviews with landlords annually, but Barfoot said it was ultimately the landlord's decision to raise the rent.
"Despite rising operating and compliance costs, these figures indicate that landlords are choosing not to raise rents by as much as they may have in the past," she said.
"What remains to be seen is how other pending regulatory changes may affect landlords' costs, and how they will accommodate these."
While the figures have moderated in the latest statistics, the pace of growth is still substantially higher than New Zealand's average wage growth.
Statistics released earlier this month showed that private sector wage inflation rose 0.3 per cent in the quarter for a 1.9 per cent annual increase.
Public sector wage inflation was up 0.3 per cent in the quarter for a 1.5 per cent annual gain, and across both sectors, wage inflation rose a quarterly 0.3 per cent and an annual 1.8 per cent.