"I believe OneRoof could potentially be a very serious player in this market as early as this time next year."
Research shows 57 per cent of property buyers use up to four resources, and many websites, to research potential properties.
NZME chief digital officer Laura Maxwell earlier said OneRoof, which has been running in beta since December, was designed to deliver all things property - under one roof.
It has partnered up with CoreLogic to get property valuation information which banks use and the platform is free for users.
According to Helm, NZME's existing relationships with real estate agencies as well as its ability to leverage relevant content across its site would be a major advantage.
"These parties have been close for decades as the industry have been supportive advertisers in the NZ Herald and strong bonds exist across all the real estate companies," he said.
"I have to say as a user OneRoof is the best digital platform on the market today."
NZME owns the New Zealand Herald.