Rightmove’s dominance of the property portal market is set to grow further.

Finance website The Motley Fool says that dominance by one company is common in the internet industry, citing Google, Facebook and eBay in their respective markets.

“But although Rightmove is the biggest online property portal by traffic, it still faces stiff competition from Zoopla.

“Innovations ranging from calculating the distance to the nearest railway station and archived listings have helped Zoopla to stay in a strong second place position.

“But Rightmove’s dominance is set to strengthen with the rise of OnTheMarket.

“Traditional estate agents, concerned about the duopoly of online portals and the rise of online estate agents, have launched their own competitor portal, OnTheMarket.

“Agents listing properties on OnTheMarket are only allowed to list on one other portal; and with Rightmove being the busiest, it is Zoopla that loses out. OnTheMarket also refuses listings from online-only estate agents.

“Zoopla, which still managed to grow revenues by 10% in the six months to the end of March 2015, saw the number of its members fall by 16%.

“The worst may yet be to come, as Zoopla could see more traffic move to Rightmove, given that Zoopla no longer has a comprehensive listing of properties for sale.”

The Motley Fool observes that corporates Countrywide and LSL, along with Foxtons, have not signed up to OTM, and concludes: “This should mean that OnTheMarket will fail to build enough of a presence, and instead actually strengthen Rightmove’s dominance, as only Rightmove will be able to attract listings from all agents.”

The Motley Fool tips Rightmove shares over Zoopla, and also recommends shares in Countrywide, LSL and Foxtons, saying these are under-valued.

The article by Jack Tang, described as “having a position at Countrywide”,  is here