A £1.5 billion legal claim against property portal Rightmove reaches a crucial hearing at the Competition Appeal Tribunal on Monday 2 November 2026. Judges will decide whether the claim can proceed on an opt-out basis, which would allow thousands of estate agents and housebuilders to be included automatically unless they choose to leave.

The hearing starts at 10.30am, with a second day available if needed, and will be livestreamed.

What the claim alleges

The claim is led by Jeremy Newman, a former Competition and Markets Authority panel member. It alleges that Rightmove abused its dominant position in the online property portal market by charging estate agents excessive and unfair subscription fees.

The action covers estate agents and new home developers that paid Rightmove subscription fees between 1 April 2020 and 1 April 2026.

What this hearing will not decide

Today's hearing will not determine whether Rightmove breached competition law or owes compensation. It will decide whether the tribunal grants a Collective Proceedings Order, certifying the claim and paving the way for a full trial. A judgment on certification is unlikely this week and usually takes a few months.

Newman argues that an opt-in approach would be a barrier for smaller firms. He said: "We look forward to making the case that this claim should proceed on an opt-out basis."

Rightmove response

Rightmove has previously said it is confident in the value it provides to partners and consumers, and said: "This claim is without merit, and we will defend it vigorously." The company revealed in its annual report earlier this year that it expects to spend £2.3 million on legal costs linked to the claim.

Sources

Property Industry Eye: £1.5bn Rightmove claim reaches crucial court hearing today and The Negotiator: Court to consider Rightmove £1.5 billion case claim today.