Zoopla has signed an agreement with estate agents and chartered surveyors Henry Adams to list all of its properties.

With a network of 15 offices across West Sussex and into Hampshire and Surrey, Henry Adams numbers Arun Estates among its close competitors.

Arun, with some 100 offices, has signed a deal to list with OnTheMarket when the latter floats.

Philip Jordan, chief executive of Henry Adams, said: “We’re very pleased to be back with ZPG. It is clear to us that ZPG offers a compelling proposition for anyone who is serious about selling.

“We wish to gain maximum exposure for our properties, and apart from the quality of the ZPG websites, we were also attracted back by their comprehensive range of products and services which complement our brand perfectly.

“We are looking forward to working with the team to maximise value, for both our brand and our clients.”

Mark Goddard, managing director of ZPG Property Services, said: “We’re delighted to welcome back Henry Adams and look forward to partnering with them to provide significant exposure for their business and enquiries for their customers.

“They, as have many of our partners, recognised the benefits and ease of our proposition of offering the full suite of essential services all under one roof.”

Yesterday, Zoopla said that 1,000 estate agency branches which had left to join OnTheMarket have now returned to it.

OnTheMarket is expected to reveal details of its planned stock market listing shortly.