Major estate agency chain Acorn has decided to drop Zoopla when OnTheMarket launches on January 26.

However, the decision to stick with Rightmove appears reluctant – and fires a warning shot across Rightmove’s bow. Yesterday, the firm had seriously discussed whether to drop both Rightmove and Zoopla.

In the end, the firm stayed with Rightmove, but Acorn CEO Robert Sargent said: “While it was an easy decision, it doesn’t leave me feeling good.”

Sargent, a high profile supporter of OTM, said it would have been a “hell of a risk” to have dropped Rightmove.

That decision was discussed yesterday by the Acorn board.

Sargent said the message sent out is that portals need to change the way they engage with their member agents to survive

The decision to stick with Rightmove came against a background where the entire role of portals was discussed at length.

The Acorn group has 32 offices and significant businesses in London and Kent, and its brands include Acorn, Langford Russell and John Payne.

Sargent told Eye yesterday evening: “After lengthy consultation between the Acorn Group main board and our senior management team, we have resolved to no longer post our clients’ properties on Zoopla.”

He said: “In the end, the decision was reached relatively easily. Interestingly, a significant number of our directors and senior management team proposed removal of all our instructions from all portals other than OnTheMarket.

“I have personally represented this sentiment to Peter Brooks-Johnson of Rightmove in the hope we may see a change in the way they engage with their agents in the future.

“We, like many of our competitors, enjoy a very different relationship with major suppliers to our business than we have experienced in recent years with the portal sector.”

Sargent also told Eye about its own market research.

He said: “An interesting finding from our market research, and one that we hope may help our peers when considering how to tackle a polarising portal sector, was the fact that our brands brought prospective buyers and sellers to the portal and not as we are told repeatedly the other way round.

“When you dig deep with your clients, portals were just a convenient way of getting in touch with us and not a determining factor in making that contact.

“When talking to vendors specifically, many were keen to see a controlled approach to online marketing and did not see the benefit of their home being displayed across multiple sites when a single search portal or even Google reveals their property so easily at one click.

“Furthermore, some vendors expressed concern at seeing the data pertaining to their homes being scraped from the internet and then displayed by a tier of lower level online marketers without formal consent.

“My team also believe this tactic smacks of desperation and does not form part of a galvanised and professional sales and marketing strategy.”