Increased levels of touting are being seen, based around OnTheMarket and whether agents are on both Rightmove and Zoopla.

One online agent yesterday told Eye it has sent out some 2,200 touting letters on that theme.

Online agents are allowed on both Rightmove and Zoopla but banned from OnTheMarket, which launches on Monday.

One agent, based in the north-east, told Eye that he was astonished when one of his vendors was touted by online agent Hatched.

He said he had not known of any of his clients being approached by Hatched before.

The agent stressed that he did not consider the touting letter particularly aggressive. But he did query where Hatched might have got the information that his agency is joining OnTheMarket, and the addresses of the vendors. The Hatched letter is attached.

We asked Hatched for a response and founder Adam Day told us: “We started collating a list in December of agents who had advertised openly that they were going with OnTheMarket.

“We also researched on Twitter to identify agents that had started posting they were going to use OnTheMarket.

“Our regional consultants were also tasked with going around the agents in the towns and cities they are based to see who had OnTheMarket stickers in their window.

“A couple of our agents even phoned the local agents to double check and asked them outright if they had planned to list with OnTheMarket!

“Along with that, we’re also keen readers of Eye who have been helping us out by reporting to us on a daily basis who were going with OnTheMarket!

“Because we have a network of agents, they were able to spend time identifying the properties over the quieter Christmas period, either by driving past them, or using tools like Google StreetView to identify the addresses. It’s very easy to do.

“So far we’ve sent letters to around 2,200 addresses to advise sellers to check with their agent to see if they are dropping either Rightmove or Zoopla, therefore diluting their marketing and in turn, their clients’ chances of selling.”

Hatched letter