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OnTheMarket

Logo: onthemarket.com3

British residential property search web portal

OnTheMarket.com is a United Kingdom property portal similar to Rightmove and Zoopla. In October 2023, it was announced that the firm would be acquired by CoStar Group for £99 million.2 From Wikipedia, CC BY-SA 4.0

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Last updated Oct 16, 2026.

Overview

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OnTheMarket image from its website
Image: onthemarket.com3

OnTheMarket.com is a United Kingdom property portal similar to Rightmove and Zoopla. In October 2023, it was announced that the firm would be acquired by CoStar Group for £99 million. On December 12, the Washington, D.C.–based property data company reported having completed the purchase of OnTheMarket plc.2

How it started

History

In 2013, estate agents including Knight Frank, Savills, Strutt & Parker, Chestertons, Douglas & Gordon and Glentree Estates founded Agents' Mutual Ltd. The company launched its portal OnTheMarket.com in January 2015.

OnTheMarket members signed up to a 'one other portal' rule as a measure they saw as necessary for the portal to enter the UK market, which was overwhelmingly dominated by two players.

On 5 July 2017 the Competition Appeal Tribunal ruled OnTheMarket.com's one other portal rule - which stipulates estate agent members can list on a maximum of one other competing portal - is not anti-competitive. This judgement was supported in January 2019 by the Court of Appeal.

In September 2017, Members of Agents’ Mutual voted 89% in favour of demutualisation of the company to introduce a new parent company – OnTheMarket plc – in preparation for the admission to the AIM market of the London Stock Exchange.

On 9 February 2018 OnTheMarket plc was admitted to the AIM market of the London Stock Exchange.

From Wikipedia’s article on OnTheMarket, shared under CC BY-SA 4.0.2

Sources

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    Company websiteOnTheMarket logo