Marketing breaks – when a property is taken off the market and then swiftly re-listed as new – will not be tolerated by the Property Ombudsman under its updated Codes, which kick in this weekend.

Meanwhile, the NAEA has utterly condemned the practice as deception which distorts the market, while Zoopla has said that any agents seen to be portal juggling will be thrown permanently off its site.

While TPO only deals with consumer complaints, it yesterday said that if it receives any complaints about portal juggling from other agents, it would pass that evidence along to the National Trading Standards Estate Agency Team and/or the Advertising Standards Authority.

TPO has confirmed that the new Code – which comes into effect this Saturday – covers marketing breaks under the phrase which defines portal juggling as manipulating and listing a property as new to the market, when it is not.

A spokesperson said: “In short, if TPO receive a complaint from a consumer about that it would be supported, as the practice is misleading given that the average buyer would expect ‘new to the market’ to mean it had not been listed before by the agent.

“If TPO receive evidence from elsewhere, for example agents or the media, they would send that evidence on to NTSEAT and/or the ASA to consider.”

Yesterday Zoopla made clear it would permanently expel any agent caught ‘juggling’.

A spokesperson said of TPO’s updated Codes: “We welcome this development.

“This is not a widespread issue and the overwhelming majority of agents do not engage in these practices.

“For those few who do, we have a number of processes and detection tools in place to prevent this.

“Where any agent deliberately attempts to circumvent these processes and manipulate their listings to mislead consumers, we have a dedicated compliance team whose job it is to identify these rogue agents and remove them permanently from our platform.

“We take this issue very seriously and Zoopla has led the way in providing accurate and transparent data to consumers to help them make smarter property decisions.”

NAEA managing director Mark Hayward said last night: “We fully support and endorse the positive and very clear changes the Property Ombudsman has announced and are working closely with both National Trading Standards and TPO to ensure these deceptive practices cease.”