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Over 4.6 million leasehold homes exist in England alone — and every single one of them sits within a legal landscape that changed dramatically when the Leasehold and Freehold Reform Act 2024 (LAFRA) received Royal Assent in May 2024. Yet the ink had barely dried before a coalition of major freeholders launched a High Court challenge that sent ripples through the valuation profession. Now, as Leasehold and Commonhold Reform Act 2024 Legal Challenges: Expert Witness Preparation for 2026 Valuation Disputes becomes one of the most pressing topics for chartered surveyors and property lawyers alike, the stakes could not be higher. [2]
The October 2025 High Court dismissal of that freeholder challenge confirmed the lawfulness of abolishing marriage value — but a planned appeal to the European Court of Human Rights means uncertainty is far from over. For expert witnesses preparing valuation evidence in 2026, this is not a theoretical concern. It is a live professional obligation. [1][5]
Key Takeaways 📋
- Marriage value abolition is confirmed lawful by the High Court (October 2025), but a freeholder appeal to the European Court of Human Rights keeps legal uncertainty alive into 2026 and beyond. [5]
- Valuation methodologies must be updated to reflect LAFRA 2024 — expert witnesses who rely on pre-reform approaches risk having their evidence challenged or dismissed.
- A new draft Commonhold and Leasehold Reform Bill was published on 27 January 2026, opening a 12-week consultation that will further reshape the valuation framework. [6]
- Secondary legislation is still outstanding, meaning some LAFRA provisions are not yet fully operational — expert witnesses must distinguish between enacted and in-force provisions. [4]
- Ground rent cap implementation is targeted for 2028, giving practitioners a firm (if distant) horizon for planning valuation advice. [6]
The Legal Landscape Entering 2026: What Surveyors Must Understand
The High Court Ruling and Its Immediate Impact
On 26 October 2025, the High Court dismissed a judicial review brought by a coalition of freeholders — including the Arc Time Freehold Income Authorised Fund — against LAFRA's abolition of marriage value. The court confirmed three critical points: [1][5]
- Parliament acted within its margin of appreciation in removing marriage value from lease extension and freehold purchase calculations.
- No breach of the Human Rights Act 1998 or Article 1 of the First Protocol of the European Convention on Human Rights was found.
- No "excessive burden" was imposed on landlords by the Government's approach.
💬 "The High Court's judgment removes substantial legal uncertainty that had delayed implementation — but the planned appeal means practitioners cannot yet treat the matter as fully settled." [5]
For expert witnesses, this ruling is enormously significant. It confirms that LAFRA's valuation methodology changes are not provisional — they reflect settled law as it stands in 2026, and tribunal evidence must reflect that reality.
The Appeal That Keeps Uncertainty Alive
Despite the robust High Court judgment, the freeholder coalition has confirmed plans to appeal — with the case potentially reaching the European Court of Human Rights. Notably, John Lyon's Charity is the only major claimant withdrawing from appeal proceedings. [5]
Commentators have warned that even a well-reasoned judgment does not guarantee swift implementation of remaining LAFRA provisions. The Government may pause secondary legislation pending appeal resolution, creating a dual-track reality for 2026 valuations: [4]
| Provision | Status in 2026 | Expert Witness Implication |
|---|---|---|
| Marriage value abolition | Enacted, confirmed lawful | Must use new methodology |
| Ground rent cap | Target: 2028 | Not yet operative |
| Ban on new leasehold flats | Timing uncertain | Monitor secondary legislation |
| Commonhold transition | Consultation open (Jan 2026) | Framework still developing |
Understanding which provisions are in force versus merely enacted is a foundational competency for any expert witness operating in this space. For guidance on legal works and block management compliance, specialist support is available to help practitioners navigate these distinctions.
Leasehold and Commonhold Reform Act 2024 Legal Challenges: How Valuation Methodology Must Evolve
Marriage Value: From Core Calculation to Abolished Concept
Before LAFRA, marriage value — the additional value unlocked when a lease is extended or a freehold purchased — was split 50/50 between leaseholder and freeholder in enfranchisement calculations. For leases with fewer than 80 years remaining, this could add tens of thousands of pounds to the premium payable.
LAFRA abolishes this entirely. [2]
For expert witnesses preparing 2026 valuation evidence, this means:
- ✅ Do not include marriage value in any enfranchisement premium calculation
- ✅ Clearly state in reports that the methodology reflects post-LAFRA law as confirmed by the October 2025 High Court ruling
- ✅ Anticipate cross-examination on the appeal's status and explain why the enacted law governs the calculation
- ⚠️ Flag any instructions that ask for alternative "pre-LAFRA" calculations — these may be appropriate for comparison purposes only, clearly labelled
The practical effect is significant. An independent property valuation prepared under the old regime could differ by 20–40% from one prepared under LAFRA for a property with a short lease. Expert witnesses who cannot explain and defend this differential under cross-examination will struggle in tribunal.
The New Commonhold Framework: A Valuation Horizon
On 27 January 2026, the Government published a draft Commonhold and Leasehold Reform Bill, opening a 12-week consultation on phased implementation. Key proposals include: [6]
- Banning leasehold for most new flats, replacing it with commonhold tenure
- Abolishing residential ground rent for existing leaseholders
- New landlord remedies for tenant breaches on long leases
These proposals do not yet have the force of law — but they are material to valuation. A property valued in 2026 must account for the reasonable expectation that the tenure landscape will look very different by 2028–2030.
Expert witnesses should:
- Acknowledge the consultation in their reports as a relevant market factor
- Avoid speculative adjustments based on unenacted provisions
- Apply RICS guidance on uncertainty and valuation caveats where appropriate
For leaseholders and residents navigating these changes, understanding how leaseholder and residents' meetings work is an important practical step alongside any formal valuation process.
Ground Rent: The 2028 Target and Its 2026 Implications
The Government has confirmed a target of implementing a ground rent cap by 2028. [6] While this is not yet law, it creates a shadow valuation problem: ground rent income streams that freeholders currently rely upon to justify freehold values may be significantly curtailed within the foreseeable investment horizon.
For expert witnesses valuing freehold interests in 2026, this requires careful treatment:
- Existing ground rent income should be valued on current contractual terms
- A clear caveat should note the legislative risk to future ground rent income
- Comparable evidence should be assessed with awareness that market participants are already pricing in reform risk
This is precisely the kind of nuanced analysis that distinguishes a robust expert witness report from one that will be picked apart in tribunal. The principles of block management insurance valuation and related financial assessments similarly require careful attention to legislative change.
Leasehold and Commonhold Reform Act 2024 Legal Challenges: Expert Witness Preparation for 2026 Valuation Disputes — Practical Standards
What Tribunals Expect from Expert Witnesses in 2026
The First-tier Tribunal (Property Chamber) and Upper Tribunal (Lands Chamber) have consistently raised the bar for expert evidence in leasehold valuation disputes. In the context of Leasehold and Commonhold Reform Act 2024 Legal Challenges: Expert Witness Preparation for 2026 Valuation Disputes, tribunals will expect expert witnesses to demonstrate: [4]
🔹 Legal literacy — a clear understanding of which LAFRA provisions are in force, which are pending secondary legislation, and what the October 2025 High Court ruling means for methodology
🔹 Methodological transparency — step-by-step workings that can be followed and challenged, not just a conclusion figure
🔹 Comparable evidence — recent post-LAFRA transactions where available, with clear adjustments explained
🔹 Independence — strict compliance with CPR Part 35 and the RICS Expert Witness Practice Statement
🔹 Caveat discipline — appropriate acknowledgement of valuation uncertainty without undermining the opinion
Common Pitfalls to Avoid ⚠️
Based on the evolving legal and regulatory landscape, the following errors are most likely to undermine expert witness credibility in 2026 disputes:
| Pitfall | Why It Matters | How to Avoid It |
|---|---|---|
| Using pre-LAFRA marriage value methodology | Contradicts enacted law confirmed by High Court | Update all precedent calculations |
| Ignoring the appeal's existence | Appears uninformed; may be raised in cross-examination | Acknowledge and explain why enacted law governs |
| Speculating on unenacted provisions | Tribunal will discount speculative adjustments | Apply RICS uncertainty caveats; stick to enacted law |
| Failing to update comparable evidence | Pre-reform comparables may be misleading | Prioritise post-May 2024 transactions |
| Conflating LAFRA with the draft 2026 Bill | These are separate instruments at different stages | Clearly distinguish in reports |
The Role of Chartered Surveyors as Expert Witnesses
Chartered surveyors with RICS accreditation remain the gold standard for expert valuation evidence in leasehold disputes. The combination of technical valuation expertise and professional accountability makes RICS members uniquely positioned to navigate the legal challenges arising from the Leasehold and Freehold Reform Act 2024.
Practitioners should ensure their continuing professional development (CPD) includes:
- RICS guidance notes on enfranchisement valuation post-LAFRA
- Tribunal practice directions updated for 2026
- Case law developments from the Upper Tribunal (Lands Chamber)
For those exploring right-to-buy valuations or other statutory valuation processes, the same principles of methodological rigour and legislative awareness apply. Similarly, practitioners involved in matrimonial valuations will recognise the importance of clearly stated methodology and defensible comparable evidence — skills directly transferable to leasehold dispute work.
Preparing the Expert Witness Report: A Checklist
A well-structured expert witness report for a 2026 leasehold valuation dispute should include: [4][5]
- Executive summary — key opinion, methodology, and legal basis stated clearly
- Qualifications and independence declaration — RICS membership, relevant experience, CPR Part 35 compliance
- Legislative framework — summary of LAFRA provisions in force as at the valuation date
- Methodology section — detailed explanation of the valuation approach, including why marriage value is excluded
- Comparable evidence — schedule of transactions with adjustments explained
- Valuation calculation — transparent, step-by-step workings
- Uncertainty and caveats — RICS-compliant statements on valuation uncertainty
- Appendices — lease details, title documents, comparable evidence, instructions received
Section 20 Major Works and the Broader Reform Context
One area where the reform landscape intersects directly with block management practice is Section 20 major works consultation. As the legislative framework evolves, Section 20 major works processes may also be subject to reform under the broader commonhold transition. Expert witnesses advising on service charge disputes should keep this dimension in view.
The Road Ahead: Key Dates and Milestones for 2026 and Beyond
The timeline for leasehold reform implementation is complex but navigable with the right framework:
📅 May 2024 — LAFRA receives Royal Assent [2]
📅 November 2024 — Implementation timeline published [2]
📅 October 2025 — High Court dismisses freeholder judicial review; marriage value abolition confirmed lawful [1][5]
📅 January 2026 — Draft Commonhold and Leasehold Reform Bill published; 12-week consultation opens [6]
📅 2026 (ongoing) — Freeholder appeal proceedings; secondary legislation awaited [4][5]
📅 2028 (target) — Ground rent cap implementation [6]
For practitioners and property owners seeking to understand their position within this timeline, getting an independent property valuation from a chartered surveyor familiar with the post-LAFRA landscape is an essential first step.
Conclusion: Actionable Steps for Expert Witnesses in 2026
The Leasehold and Commonhold Reform Act 2024 Legal Challenges: Expert Witness Preparation for 2026 Valuation Disputes landscape demands more than technical competence — it demands legal awareness, methodological rigour, and professional courage to give clear opinions in a still-evolving environment.
Immediate Actions for Practitioners 🎯
- Audit your precedent reports — remove all marriage value calculations from standard enfranchisement templates and update to reflect LAFRA methodology
- Brief your clients — explain the October 2025 High Court ruling and what the pending appeal means for their dispute timeline
- Update your CPD — attend RICS-approved training on post-LAFRA enfranchisement valuation before accepting expert witness instructions
- Monitor secondary legislation — set up alerts for statutory instruments implementing remaining LAFRA provisions
- Engage with the commonhold consultation — the 12-week consultation that opened 27 January 2026 is a direct opportunity to shape the framework that will govern future valuations [6]
- Seek specialist support — where disputes involve complex block management or legal works dimensions, collaborate with specialists in block management legal works to ensure all angles are covered
The legal challenges arising from LAFRA 2024 are not a reason to hesitate — they are a reason to prepare. Expert witnesses who invest in understanding the reformed framework now will be the ones tribunals trust in 2026 and beyond.
References
[1] Government Wins Legal Challenge Over Leasehold Reform Act – https://ihowz.uk/government-wins-legal-challenge-over-leasehold-reform-act/
[2] Leasehold Reform – https://hoa.org.uk/advice/guides-for-homeowners/for-owners/leasehold-reform/
[4] Leasehold Reform 2024 Practical Implications For Surveyors Agents And Property Owners – https://www.businesswire-essex.co.uk/leasehold-reform-2024-practical-implications-for-surveyors-agents-and-property-owners/
[5] Arc And The Impending Flood Of Leasehold Reform – https://www.traverssmith.com/knowledge/knowledge-container/arc-and-the-impending-flood-of-leasehold-reform/
[6] Draft Commonhold And Leasehold Reform Bill The Demise Of The Long Leasehold Flat Abolition Of Residential Ground Rent And New Ways For Landlords To Redress Tenant Breaches On Long Leases – https://www.bclplaw.com/en-US/events-insights-news/draft-commonhold-and-leasehold-reform-bill-the-demise-of-the-long-leasehold-flat-abolition-of-residential-ground-rent-and-new-ways-for-landlords-to-redress-tenant-breaches-on-long-leases.html