A total of 264 new offices have signed up to Agents’ Mutual in the last month, it is revealed this morning.

The number easily beats the average of 122 per month of earlier this year, and brings the total to over 2,450.

In an update to supporters, Agents’ Mutual chief executive Ian Springett says: “This means that we are over 60% of the way to our next major milestone, which is the achievement of 4,000 supporting agent offices – a point at which the venture really does become unstoppable.”

He adds that some 3,700 agents from over 3,250 firms have now registered interest, and who are being contacted and invited either to group or one-to-one meetings. Other agents that have not registered an interest are on a ‘prospecting’ database and will also be contacted and encouraged to learn more about Agents’ Mutual.

Springett also reveals that 18 regionally-based business development consultants have now been hired – the majority having joined from Rightmove or Zoopla.

He says of the team: “They are all very experienced and knowledgeable people and are excited about communicating the alternative to the duopoly which Agents’ Mutual offers to agents.”

Marketing and PR sources will be built up shortly, adds Springett, who also says that branding experts have been engaged “to help us develop the brand name, proposition and identity”.

He says he understands how keen agents are to have more details, but cautions: “We do not want to rush the work or miss the opportunity to derive maximum PR impact from the announcement of the brand name. Please, therefore, bear with us on this.”

Springett pays tribute to the “excellent support” from Gold members who are helping to organise local and regional meetings to help spread the word.

He also adds a note of warning to agents, whether or not they have signed up to Agents’ Mutual, asking them to “manage your contacts with your existing portal providers in a manner which will allow you to join us … and comply with our ‘one other competing portal’ rule.

“Please do not sleepwalk into a position where your contracts prevent you from listing on our portal and supporting us at launch, so we can make the biggest impact possible.

“Feedback from agents suggests that our impending launch is already providing them with much greater negotiating strength with Rightmove and Zoopla than they have had for years.”

Springett adds that both Rightmove and Zoopla initially underestimated Agents’ Mutual, but that “it is now clear that both the major portals will be taking every step possible to resists and diminish the power of our market entry”.

He says the stock market is also taking Agents’ Mutual seriously. Since February, Rightmove’s share price has fallen over 20%, and “Zoopla’s valuation appears also to have diminished significantly”.

He points out: “Directors of both organisations have sold down, or will shortly sell down, their holdings in their own companies.”

This was a reference to Rightmove chairman Scott Forbes recently selling half his holding, and Zoopla’s current major shareholders who will be cutting their stakes in the flotation.

Springett says of Agents’ Mutual: “It is a momentum thing – the more agents who pledge their support, the more agents will do so.”