Agents are now anticipating contact from Zoopla to see if they will be interested in buying discounted shares when the company floats with a proposed valuation of £1.2bn.

Zoopla has yet to publish its prospectus, but this is expected shortly.

Agents will be particularly interested to see the firm’s business projections, including income and yields – especially to see if Zoopla foresees any subscription money being diverted away by the launch of Agents’ Mutual, or even refers to Agents’ Mutual at all.

There could also be a question mark as to how much independent agents will be tempted by the deal – essentially a sale of just 25% of the business – when Zoopla will still be largely controlled by its current backers.

These include the Daily Mail and General Trust, private equity, and the three large corporates, Countrywide, LSL and Connells. None are expected to sell all of their stakes.

Zoopla said it will be allowing member agents to apply for the discounted shares “within the next few weeks and intends to communicate directly with each member on this”.

The UK’s second biggest property portal will float by offering for sale shares put up by its current owners.

These will be sold only to financial institutions such as pension funds, and to the agents and developers who list on Zoopla and who will be able to buy at the discount.

The DMGT and founder Alex Chesterman will be among those selling some of their shares. However, DMGT expects to remain the largest shareholder and it is not known how much of its current 52.6% stake will be sold.

There have been mixed reactions about the Zoopla 20% discounted “loyalty” offer which will enable agents to buy up to £2,500 shares this year per branch and the same again next.

One City analyst said it was a “clever idea” but described it as a sideshow.

Agents seem divided. Some said that it was a highly investable proposition, while others saw it as a blatant attempt to buy off the Agents’ Mutual threat.

Ian Springett, chief executive of Agents’ Mutual which will be launching its as yet un-named portal next January as a wholly-owned agent enterprise, declined to make any comment.

Eye asked Zoopla about the Scottish letting agents who do advertise on Zoopla, but only via a deal with Lettingweb – which has also just announced a sale of some of its shares to member agents.

A spokesperson for Zoopla said: “The member offer is being made available to any advertising member who has a direct commercial relationship with Zoopla Property Group.

“Although there is no direct advertising relationship in place with lettings office members of Lettingweb, many of their members have a ZPG account for their sales office and would be included accordingly.”

Meanwhile, Chesterman said that Zoopla has ambitious plans for the future, with plans to expand into other parts of the property market, such as commercial.

Yesterday, Rightmove shares rose in early trading but sank back later during the day to close at just 3p down.