What Landlords Need to Know About the £1.5bn Legal Action Against Rightmove

Background: The Legal Challenge to Rightmove

In a significant development for the UK property sector, a £1.5 billion collective legal action has been scheduled against Rightmove, the nation’s leading property portal. The claim alleges that between April 2020 and April 2026, Rightmove abused its dominant market position by charging excessive and unfair subscription fees to estate agents and new home developers.

The case is due to be heard before the Competition Appeal Tribunal on 2-3 November 2026. Rightmove must file a formal response by 29 July 2026, and the claimants will reply by 25 September 2026. The tribunal will decide whether this dispute proceeds to a full trial.

Why This Matters to Landlords

At first glance, this legal battle appears to concern only estate agents and developers. However, Rightmove’s fee structures directly affect the costs agents incur to market properties—including rental listings. Any changes to these fees could influence how agents price their services, impacting landlords’ marketing costs and possibly the visibility of rental properties.

For single-unit landlords, accidental landlords, and portfolio holders alike, understanding the potential ripple effects is crucial. Increased agent costs might lead to higher letting fees or reduced marketing efforts, which can affect tenant sourcing speed and rental income.

Practical Implications Across Landlord Profiles

• Single-unit landlords: Often rely on agents to market their property. If agents face higher fees, these could be passed on in the form of increased commission or reduced marketing exposure.

• HMO owners and portfolio landlords: Typically have more frequent marketing needs. A shift in portal fees might impact operational budgets more significantly.

• Accidental landlords: May be more sensitive to changes in agent fees and less able to absorb increased costs.

What Landlords Should Do Now

1. Engage with Your Agent: Discuss whether they have been involved in this legal action or have any plans to adjust fees or marketing strategies in response.

2. Review Marketing Costs: Examine your recent invoices related to property advertising to understand your current expenditure baseline.

3. Explore Alternative Marketing Channels: Consider supplementing Rightmove listings with other portals or direct marketing methods to mitigate risks.

4. Stay Informed on Case Developments: While the hearing is in late 2026, the responses due mid-2026 may provide early signals. Monitoring these can help you anticipate changes.

5. Prepare for Operational Adjustments: If fees increase, budgeting for higher agent costs or exploring more self-managed marketing approaches may become necessary.

What Estate Agents and Developers Are Doing

Agents and developers who paid Rightmove fees during the specified period are advised to review their payments and consider joining the collective action. Although landlords are not claimants here, the outcome will likely influence the residential lettings market.

How Rentals & Sales Can Support You

Our team can conduct a portfolio review to assess your current marketing spend and advise on cost-effective strategies. We also offer compliance audits and pricing strategy consultations to ensure your operations remain resilient amid market changes. Reach out to discuss how we can help you navigate potential shifts arising from this legal challenge.

Compliance disclaimer: This article is for informational purposes only and does not constitute legal advice. Landlords should consult qualified professionals regarding specific legal or financial matters.